mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
901b3290bd
18139 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
1e15510b71 |
Including fixes from bluetooth. We didn't get netfilter or wireless PRs
this week, so next week's PR is probably going to be bigger. A healthy
dose of fixes for bugs introduced in the current release nonetheless.
Current release - regressions:
- Bluetooth: always allow SCO packets for user channel
- af_unix: fix memory leak in unix_dgram_sendmsg()
- rxrpc:
- remove redundant peer->mtu_lock causing lockdep splats
- fix spinlock flavor issues with the peer record hash
- eth: iavf: fix circular lock dependency with netdev_lock
- net: use rtnl_net_dev_lock() in register_netdevice_notifier_dev_net()
RDMA driver register notifier after the device
Current release - new code bugs:
- ethtool: fix ioctl confusing drivers about desired HDS user config
- eth: ixgbe: fix media cage present detection for E610 device
Previous releases - regressions:
- loopback: avoid sending IP packets without an Ethernet header
- mptcp: reset connection when MPTCP opts are dropped after join
Previous releases - always broken:
- net: better track kernel sockets lifetime
- ipv6: fix dst ref loop on input in seg6 and rpl lw tunnels
- phy: qca807x: use right value from DTS for DAC_DSP_BIAS_CURRENT
- eth: enetc: number of error handling fixes
- dsa: rtl8366rb: reshuffle the code to fix config / build issue
with LED support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth.
We didn't get netfilter or wireless PRs this week, so next week's PR
is probably going to be bigger. A healthy dose of fixes for bugs
introduced in the current release nonetheless.
Current release - regressions:
- Bluetooth: always allow SCO packets for user channel
- af_unix: fix memory leak in unix_dgram_sendmsg()
- rxrpc:
- remove redundant peer->mtu_lock causing lockdep splats
- fix spinlock flavor issues with the peer record hash
- eth: iavf: fix circular lock dependency with netdev_lock
- net: use rtnl_net_dev_lock() in
register_netdevice_notifier_dev_net() RDMA driver register notifier
after the device
Current release - new code bugs:
- ethtool: fix ioctl confusing drivers about desired HDS user config
- eth: ixgbe: fix media cage present detection for E610 device
Previous releases - regressions:
- loopback: avoid sending IP packets without an Ethernet header
- mptcp: reset connection when MPTCP opts are dropped after join
Previous releases - always broken:
- net: better track kernel sockets lifetime
- ipv6: fix dst ref loop on input in seg6 and rpl lw tunnels
- phy: qca807x: use right value from DTS for DAC_DSP_BIAS_CURRENT
- eth: enetc: number of error handling fixes
- dsa: rtl8366rb: reshuffle the code to fix config / build issue with
LED support"
* tag 'net-6.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
net: ti: icss-iep: Reject perout generation request
idpf: fix checksums set in idpf_rx_rsc()
selftests: drv-net: Check if combined-count exists
net: ipv6: fix dst ref loop on input in rpl lwt
net: ipv6: fix dst ref loop on input in seg6 lwt
usbnet: gl620a: fix endpoint checking in genelink_bind()
net/mlx5: IRQ, Fix null string in debug print
net/mlx5: Restore missing trace event when enabling vport QoS
net/mlx5: Fix vport QoS cleanup on error
net: mvpp2: cls: Fixed Non IP flow, with vlan tag flow defination.
af_unix: Fix memory leak in unix_dgram_sendmsg()
net: Handle napi_schedule() calls from non-interrupt
net: Clear old fragment checksum value in napi_reuse_skb
gve: unlink old napi when stopping a queue using queue API
net: Use rtnl_net_dev_lock() in register_netdevice_notifier_dev_net().
tcp: Defer ts_recent changes until req is owned
net: enetc: fix the off-by-one issue in enetc_map_tx_tso_buffs()
net: enetc: remove the mm_lock from the ENETC v4 driver
net: enetc: add missing enetc4_link_deinit()
net: enetc: update UDP checksum when updating originTimestamp field
...
|
||
|
Eric Dumazet
|
5c70eb5c59 |
net: better track kernel sockets lifetime
While kernel sockets are dismantled during pernet_operations->exit(),
their freeing can be delayed by any tx packets still held in qdisc
or device queues, due to skb_set_owner_w() prior calls.
This then trigger the following warning from ref_tracker_dir_exit() [1]
To fix this, make sure that kernel sockets own a reference on net->passive.
Add sk_net_refcnt_upgrade() helper, used whenever a kernel socket
is converted to a refcounted one.
[1]
[ 136.263918][ T35] ref_tracker: net notrefcnt@ffff8880638f01e0 has 1/2 users at
[ 136.263918][ T35] sk_alloc+0x2b3/0x370
[ 136.263918][ T35] inet6_create+0x6ce/0x10f0
[ 136.263918][ T35] __sock_create+0x4c0/0xa30
[ 136.263918][ T35] inet_ctl_sock_create+0xc2/0x250
[ 136.263918][ T35] igmp6_net_init+0x39/0x390
[ 136.263918][ T35] ops_init+0x31e/0x590
[ 136.263918][ T35] setup_net+0x287/0x9e0
[ 136.263918][ T35] copy_net_ns+0x33f/0x570
[ 136.263918][ T35] create_new_namespaces+0x425/0x7b0
[ 136.263918][ T35] unshare_nsproxy_namespaces+0x124/0x180
[ 136.263918][ T35] ksys_unshare+0x57d/0xa70
[ 136.263918][ T35] __x64_sys_unshare+0x38/0x40
[ 136.263918][ T35] do_syscall_64+0xf3/0x230
[ 136.263918][ T35] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 136.263918][ T35]
[ 136.343488][ T35] ref_tracker: net notrefcnt@ffff8880638f01e0 has 1/2 users at
[ 136.343488][ T35] sk_alloc+0x2b3/0x370
[ 136.343488][ T35] inet6_create+0x6ce/0x10f0
[ 136.343488][ T35] __sock_create+0x4c0/0xa30
[ 136.343488][ T35] inet_ctl_sock_create+0xc2/0x250
[ 136.343488][ T35] ndisc_net_init+0xa7/0x2b0
[ 136.343488][ T35] ops_init+0x31e/0x590
[ 136.343488][ T35] setup_net+0x287/0x9e0
[ 136.343488][ T35] copy_net_ns+0x33f/0x570
[ 136.343488][ T35] create_new_namespaces+0x425/0x7b0
[ 136.343488][ T35] unshare_nsproxy_namespaces+0x124/0x180
[ 136.343488][ T35] ksys_unshare+0x57d/0xa70
[ 136.343488][ T35] __x64_sys_unshare+0x38/0x40
[ 136.343488][ T35] do_syscall_64+0xf3/0x230
[ 136.343488][ T35] entry_SYSCALL_64_after_hwframe+0x77/0x7f
Fixes:
|
||
|
Linus Torvalds
|
319fc77f8f |
BPF fixes:
- Fix a soft-lockup in BPF arena_map_free on 64k page size kernels (Alan Maguire) - Fix a missing allocation failure check in BPF verifier's acquire_lock_state (Kumar Kartikeya Dwivedi) - Fix a NULL-pointer dereference in trace_kfree_skb by adding kfree_skb to the raw_tp_null_args set (Kuniyuki Iwashima) - Fix a deadlock when freeing BPF cgroup storage (Abel Wu) - Fix a syzbot-reported deadlock when holding BPF map's freeze_mutex (Andrii Nakryiko) - Fix a use-after-free issue in bpf_test_init when eth_skb_pkt_type is accessing skb data not containing an Ethernet header (Shigeru Yoshida) - Fix skipping non-existing keys in generic_map_lookup_batch (Yan Zhai) - Several BPF sockmap fixes to address incorrect TCP copied_seq calculations, which prevented correct data reads from recv(2) in user space (Jiayuan Chen) - Two fixes for BPF map lookup nullness elision (Daniel Xu) - Fix a NULL-pointer dereference from vmlinux BTF lookup in bpf_sk_storage_tracing_allowed (Jared Kangas) Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> -----BEGIN PGP SIGNATURE----- iIsEABYKADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZ7evlRUcZGFuaWVsQGlv Z2VhcmJveC5uZXQACgkQ2yufC7HISIPwHgD/dTvM00Ck4Q73fPivyT7tcqxeXJlD D6ggzWl/SG9LAbwA/2/cSgAM9Jm1g7ddvn/S9QaDYOs5GmFl6urq6krs+tYD =FCs9 -----END PGP SIGNATURE----- Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Pull BPF fixes from Daniel Borkmann: - Fix a soft-lockup in BPF arena_map_free on 64k page size kernels (Alan Maguire) - Fix a missing allocation failure check in BPF verifier's acquire_lock_state (Kumar Kartikeya Dwivedi) - Fix a NULL-pointer dereference in trace_kfree_skb by adding kfree_skb to the raw_tp_null_args set (Kuniyuki Iwashima) - Fix a deadlock when freeing BPF cgroup storage (Abel Wu) - Fix a syzbot-reported deadlock when holding BPF map's freeze_mutex (Andrii Nakryiko) - Fix a use-after-free issue in bpf_test_init when eth_skb_pkt_type is accessing skb data not containing an Ethernet header (Shigeru Yoshida) - Fix skipping non-existing keys in generic_map_lookup_batch (Yan Zhai) - Several BPF sockmap fixes to address incorrect TCP copied_seq calculations, which prevented correct data reads from recv(2) in user space (Jiayuan Chen) - Two fixes for BPF map lookup nullness elision (Daniel Xu) - Fix a NULL-pointer dereference from vmlinux BTF lookup in bpf_sk_storage_tracing_allowed (Jared Kangas) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests: bpf: test batch lookup on array of maps with holes bpf: skip non exist keys in generic_map_lookup_batch bpf: Handle allocation failure in acquire_lock_state bpf: verifier: Disambiguate get_constant_map_key() errors bpf: selftests: Test constant key extraction on irrelevant maps bpf: verifier: Do not extract constant map keys for irrelevant maps bpf: Fix softlockup in arena_map_free on 64k page kernel net: Add rx_skb of kfree_skb to raw_tp_null_args[]. bpf: Fix deadlock when freeing cgroup storage selftests/bpf: Add strparser test for bpf selftests/bpf: Fix invalid flag of recv() bpf: Disable non stream socket for strparser bpf: Fix wrong copied_seq calculation strparser: Add read_sock callback bpf: avoid holding freeze_mutex during mmap operation bpf: unify VM_WRITE vs VM_MAYWRITE use in BPF map mmaping logic selftests/bpf: Adjust data size to have ETH_HLEN bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type() bpf: Remove unnecessary BTF lookups in bpf_sk_storage_tracing_allowed |
||
|
Paolo Abeni
|
14ad6ed30a |
net: allow small head cache usage with large MAX_SKB_FRAGS values
Sabrina reported the following splat:
WARNING: CPU: 0 PID: 1 at net/core/dev.c:6935 netif_napi_add_weight_locked+0x8f2/0xba0
Modules linked in:
CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc1-net-00092-g011b03359038 #996
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
RIP: 0010:netif_napi_add_weight_locked+0x8f2/0xba0
Code: e8 c3 e6 6a fe 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc c7 44 24 10 ff ff ff ff e9 8f fb ff ff e8 9e e6 6a fe <0f> 0b e9 d3 fe ff ff e8 92 e6 6a fe 48 8b 04 24 be ff ff ff ff 48
RSP: 0000:ffffc9000001fc60 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88806ce48128 RCX: 1ffff11001664b9e
RDX: ffff888008f00040 RSI: ffffffff8317ca42 RDI: ffff88800b325cb6
RBP: ffff88800b325c40 R08: 0000000000000001 R09: ffffed100167502c
R10: ffff88800b3a8163 R11: 0000000000000000 R12: ffff88800ac1c168
R13: ffff88800ac1c168 R14: ffff88800ac1c168 R15: 0000000000000007
FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888008201000 CR3: 0000000004c94001 CR4: 0000000000370ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
gro_cells_init+0x1ba/0x270
xfrm_input_init+0x4b/0x2a0
xfrm_init+0x38/0x50
ip_rt_init+0x2d7/0x350
ip_init+0xf/0x20
inet_init+0x406/0x590
do_one_initcall+0x9d/0x2e0
do_initcalls+0x23b/0x280
kernel_init_freeable+0x445/0x490
kernel_init+0x20/0x1d0
ret_from_fork+0x46/0x80
ret_from_fork_asm+0x1a/0x30
</TASK>
irq event stamp: 584330
hardirqs last enabled at (584338): [<ffffffff8168bf87>] __up_console_sem+0x77/0xb0
hardirqs last disabled at (584345): [<ffffffff8168bf6c>] __up_console_sem+0x5c/0xb0
softirqs last enabled at (583242): [<ffffffff833ee96d>] netlink_insert+0x14d/0x470
softirqs last disabled at (583754): [<ffffffff8317c8cd>] netif_napi_add_weight_locked+0x77d/0xba0
on kernel built with MAX_SKB_FRAGS=45, where SKB_WITH_OVERHEAD(1024)
is smaller than GRO_MAX_HEAD.
Such built additionally contains the revert of the single page frag cache
so that napi_get_frags() ends up using the page frag allocator, triggering
the splat.
Note that the underlying issue is independent from the mentioned
revert; address it ensuring that the small head cache will fit either TCP
and GRO allocation and updating napi_alloc_skb() and __netdev_alloc_skb()
to select kmalloc() usage for any allocation fitting such cache.
Reported-by: Sabrina Dubroca <sd@queasysnail.net>
Suggested-by: Eric Dumazet <edumazet@google.com>
Fixes:
|
||
|
Sabrina Dubroca
|
9b6412e697 |
tcp: drop secpath at the same time as we currently drop dst
Xiumei reported hitting the WARN in xfrm6_tunnel_net_exit while
running tests that boil down to:
- create a pair of netns
- run a basic TCP test over ipcomp6
- delete the pair of netns
The xfrm_state found on spi_byaddr was not deleted at the time we
delete the netns, because we still have a reference on it. This
lingering reference comes from a secpath (which holds a ref on the
xfrm_state), which is still attached to an skb. This skb is not
leaked, it ends up on sk_receive_queue and then gets defer-free'd by
skb_attempt_defer_free.
The problem happens when we defer freeing an skb (push it on one CPU's
defer_list), and don't flush that list before the netns is deleted. In
that case, we still have a reference on the xfrm_state that we don't
expect at this point.
We already drop the skb's dst in the TCP receive path when it's no
longer needed, so let's also drop the secpath. At this point,
tcp_filter has already called into the LSM hooks that may require the
secpath, so it should not be needed anymore. However, in some of those
places, the MPTCP extension has just been attached to the skb, so we
cannot simply drop all extensions.
Fixes:
|
||
|
Kuniyuki Iwashima
|
e57a632021 |
net: Add net_passive_inc() and net_passive_dec().
net_drop_ns() is NULL when CONFIG_NET_NS is disabled. The next patch introduces a function that increments and decrements net->passive. As a prep, let's rename and export net_free() to net_passive_dec() and add net_passive_inc(). Suggested-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/netdev/CANn89i+oUCt2VGvrbrweniTendZFEh+nwS=uonc004-aPkWy-Q@mail.gmail.com/ Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250217191129.19967-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Luiz Augusto von Dentz
|
ab4eedb790 |
Bluetooth: L2CAP: Fix corrupted list in hci_chan_del
This fixes the following trace by reworking the locking of l2cap_conn
so instead of only locking when changing the chan_l list this promotes
chan_lock to a general lock of l2cap_conn so whenever it is being held
it would prevents the likes of l2cap_conn_del to run:
list_del corruption, ffff888021297e00->prev is LIST_POISON2 (dead000000000122)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 5896 Comm: syz-executor213 Not tainted 6.14.0-rc1-next-20250204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__list_del_entry_valid_or_report+0x12c/0x190 lib/list_debug.c:59
Code: 8c 4c 89 fe 48 89 da e8 32 8c 37 fc 90 0f 0b 48 89 df e8 27 9f 14 fd 48 c7 c7 a0 c0 60 8c 4c 89 fe 48 89 da e8 15 8c 37 fc 90 <0f> 0b 4c 89 e7 e8 0a 9f 14 fd 42 80 3c 2b 00 74 08 4c 89 e7 e8 cb
RSP: 0018:ffffc90003f6f998 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 01454d423f7fbf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff819f077c R09: 1ffff920007eded0
R10: dffffc0000000000 R11: fffff520007eded1 R12: dead000000000122
R13: dffffc0000000000 R14: ffff8880352248d8 R15: ffff888021297e00
FS: 00007f7ace6686c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7aceeeb1d0 CR3: 000000003527c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__list_del_entry_valid include/linux/list.h:124 [inline]
__list_del_entry include/linux/list.h:215 [inline]
list_del_rcu include/linux/rculist.h:168 [inline]
hci_chan_del+0x70/0x1b0 net/bluetooth/hci_conn.c:2858
l2cap_conn_free net/bluetooth/l2cap_core.c:1816 [inline]
kref_put include/linux/kref.h:65 [inline]
l2cap_conn_put+0x70/0xe0 net/bluetooth/l2cap_core.c:1830
l2cap_sock_shutdown+0xa8a/0x1020 net/bluetooth/l2cap_sock.c:1377
l2cap_sock_release+0x79/0x1d0 net/bluetooth/l2cap_sock.c:1416
__sock_release net/socket.c:642 [inline]
sock_close+0xbc/0x240 net/socket.c:1393
__fput+0x3e9/0x9f0 fs/file_table.c:448
task_work_run+0x24f/0x310 kernel/task_work.c:227
ptrace_notify+0x2d2/0x380 kernel/signal.c:2522
ptrace_report_syscall include/linux/ptrace.h:415 [inline]
ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline]
syscall_exit_work+0xc7/0x1d0 kernel/entry/common.c:173
syscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline]
syscall_exit_to_user_mode+0x24a/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7aceeaf449
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7ace668218 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 00007f7acef39328 RCX: 00007f7aceeaf449
RDX: 000000000000000e RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007f7acef39320 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000004 R14: 00007f7ace668670 R15: 000000000000000b
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x12c/0x190 lib/list_debug.c:59
Code: 8c 4c 89 fe 48 89 da e8 32 8c 37 fc 90 0f 0b 48 89 df e8 27 9f 14 fd 48 c7 c7 a0 c0 60 8c 4c 89 fe 48 89 da e8 15 8c 37 fc 90 <0f> 0b 4c 89 e7 e8 0a 9f 14 fd 42 80 3c 2b 00 74 08 4c 89 e7 e8 cb
RSP: 0018:ffffc90003f6f998 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 01454d423f7fbf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff819f077c R09: 1ffff920007eded0
R10: dffffc0000000000 R11: fffff520007eded1 R12: dead000000000122
R13: dffffc0000000000 R14: ffff8880352248d8 R15: ffff888021297e00
FS: 00007f7ace6686c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7acef05b08 CR3: 000000003527c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Reported-by: syzbot+10bd8fe6741eedd2be2e@syzkaller.appspotmail.com
Tested-by: syzbot+10bd8fe6741eedd2be2e@syzkaller.appspotmail.com
Fixes:
|
||
|
Eric Dumazet
|
6d0ce46a93 |
vrf: use RCU protection in l3mdev_l3_out()
l3mdev_l3_out() can be called without RCU being held:
raw_sendmsg()
ip_push_pending_frames()
ip_send_skb()
ip_local_out()
__ip_local_out()
l3mdev_ip_out()
Add rcu_read_lock() / rcu_read_unlock() pair to avoid
a potential UAF.
Fixes:
|
||
|
Eric Dumazet
|
071d801286 |
ipv4: use RCU protection in ip_dst_mtu_maybe_forward()
ip_dst_mtu_maybe_forward() must use RCU protection to make
sure the net structure it reads does not disappear.
Fixes:
|
||
|
Eric Dumazet
|
469308552c |
ipv4: add RCU protection to ip4_dst_hoplimit()
ip4_dst_hoplimit() must use RCU protection to make
sure the net structure it reads does not disappear.
Fixes:
|
||
|
Eric Dumazet
|
482ad2a4ac |
net: add dev_net_rcu() helper
dev->nd_net can change, readers should either use rcu_read_lock() or RTNL. We currently use a generic helper, dev_net() with no debugging support. We probably have many hidden bugs. Add dev_net_rcu() helper for callers using rcu_read_lock() protection. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250205155120.1676781-2-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Ido Schimmel
|
811b8f534f |
net: sched: Fix truncation of offloaded action statistics
In case of tc offload, when user space queries the kernel for tc action
statistics, tc will query the offloaded statistics from device drivers.
Among other statistics, drivers are expected to pass the number of
packets that hit the action since the last query as a 64-bit number.
Unfortunately, tc treats the number of packets as a 32-bit number,
leading to truncation and incorrect statistics when the number of
packets since the last query exceeds 0xffffffff:
$ tc -s filter show dev swp2 ingress
filter protocol all pref 1 flower chain 0
filter protocol all pref 1 flower chain 0 handle 0x1
skip_sw
in_hw in_hw_count 1
action order 1: mirred (Egress Redirect to device swp1) stolen
index 1 ref 1 bind 1 installed 58 sec used 0 sec
Action statistics:
Sent 1133877034176 bytes 536959475 pkt (dropped 0, overlimits 0 requeues 0)
[...]
According to the above, 2111-byte packets were redirected which is
impossible as only 64-byte packets were transmitted and the MTU was
1500.
Fix by treating packets as a 64-bit number:
$ tc -s filter show dev swp2 ingress
filter protocol all pref 1 flower chain 0
filter protocol all pref 1 flower chain 0 handle 0x1
skip_sw
in_hw in_hw_count 1
action order 1: mirred (Egress Redirect to device swp1) stolen
index 1 ref 1 bind 1 installed 61 sec used 0 sec
Action statistics:
Sent 1370624380864 bytes 21416005951 pkt (dropped 0, overlimits 0 requeues 0)
[...]
Which shows that only 64-byte packets were redirected (1370624380864 /
21416005951 = 64).
Fixes:
|
||
|
Jiayuan Chen
|
36b62df568 |
bpf: Fix wrong copied_seq calculation
'sk->copied_seq' was updated in the tcp_eat_skb() function when the action
of a BPF program was SK_REDIRECT. For other actions, like SK_PASS, the
update logic for 'sk->copied_seq' was moved to tcp_bpf_recvmsg_parser()
to ensure the accuracy of the 'fionread' feature.
It works for a single stream_verdict scenario, as it also modified
sk_data_ready->sk_psock_verdict_data_ready->tcp_read_skb
to remove updating 'sk->copied_seq'.
However, for programs where both stream_parser and stream_verdict are
active (strparser purpose), tcp_read_sock() was used instead of
tcp_read_skb() (sk_data_ready->strp_data_ready->tcp_read_sock).
tcp_read_sock() now still updates 'sk->copied_seq', leading to duplicate
updates.
In summary, for strparser + SK_PASS, copied_seq is redundantly calculated
in both tcp_read_sock() and tcp_bpf_recvmsg_parser().
The issue causes incorrect copied_seq calculations, which prevent
correct data reads from the recv() interface in user-land.
We do not want to add new proto_ops to implement a new version of
tcp_read_sock, as this would introduce code complexity [1].
We could have added noack and copied_seq to desc, and then called
ops->read_sock. However, unfortunately, other modules didn’t fully
initialize desc to zero. So, for now, we are directly calling
tcp_read_sock_noack() in tcp_bpf.c.
[1]: https://lore.kernel.org/bpf/20241218053408.437295-1-mrpre@163.com
Fixes:
|
||
|
Jiayuan Chen
|
0532a79efd |
strparser: Add read_sock callback
Added a new read_sock handler, allowing users to customize read operations instead of relying on the native socket's read_sock. Signed-off-by: Jiayuan Chen <mrpre@163.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://patch.msgid.link/20250122100917.49845-2-mrpre@163.com |
||
|
Jakub Kicinski
|
463ec95a16 |
ipsec-2025-01-27
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||
|
Jakub Kicinski
|
67e4bb2ced |
net: page_pool: don't try to stash the napi id
Page ppol tried to cache the NAPI ID in page pool info to avoid
having a dependency on the life cycle of the NAPI instance.
Since commit under Fixes the NAPI ID is not populated until
napi_enable() and there's a good chance that page pool is
created before NAPI gets enabled.
Protect the NAPI pointer with the existing page pool mutex,
the reading path already holds it. napi_id itself we need
to READ_ONCE(), it's protected by netdev_lock() which are
not holding in page pool.
Before this patch napi IDs were missing for mlx5:
# ./cli.py --spec netlink/specs/netdev.yaml --dump page-pool-get
[{'id': 144, 'ifindex': 2, 'inflight': 3072, 'inflight-mem': 12582912},
{'id': 143, 'ifindex': 2, 'inflight': 5568, 'inflight-mem': 22806528},
{'id': 142, 'ifindex': 2, 'inflight': 5120, 'inflight-mem': 20971520},
{'id': 141, 'ifindex': 2, 'inflight': 4992, 'inflight-mem': 20447232},
...
After:
[{'id': 144, 'ifindex': 2, 'inflight': 3072, 'inflight-mem': 12582912,
'napi-id': 565},
{'id': 143, 'ifindex': 2, 'inflight': 4224, 'inflight-mem': 17301504,
'napi-id': 525},
{'id': 142, 'ifindex': 2, 'inflight': 4288, 'inflight-mem': 17563648,
'napi-id': 524},
...
Fixes:
|
||
|
Linus Torvalds
|
0ad9617c78 |
Networking changes for 6.14.
Core
----
- More core refactoring to reduce the RTNL lock contention,
including preparatory work for the per-network namespace RTNL lock,
replacing RTNL lock with a per device-one to protect NAPI-related
net device data and moving synchronize_net() calls outside such
lock.
- Extend drop reasons usage, adding net scheduler, AF_UNIX, bridge and
more specific TCP coverage.
- Reduce network namespace tear-down time by removing per-subsystems
synchronize_net() in tipc and sched.
- Add flow label selector support for fib rules, allowing traffic
redirection based on such header field.
Netfilter
---------
- Do not remove netdev basechain when last device is gone, allowing
netdev basechains without devices.
- Revisit the flowtable teardown strategy, dealing better with fin,
reset and re-open events.
- Scale-up IP-vs connection dumping by avoiding linear search on
each restart.
Protocols
---------
- A significant XDP socket refactor, consolidating and optimizing
several helpers into the core
- Better scaling of ICMP rate-limiting, by removing false-sharing in
inet peers handling.
- Introduces netlink notifications for multicast IPv4 and IPv6
address changes.
- Add ipsec support for IP-TFS/AggFrag encapsulation, allowing
aggregation and fragmentation of the inner IP.
- Add sysctl to configure TIME-WAIT reuse delay for TCP sockets,
to avoid local port exhaustion issues when the average connection
lifetime is very short.
- Support updating keys (re-keying) for connections using kernel
TLS (for TLS 1.3 only).
- Support ipv4-mapped ipv6 address clients in smc-r v2.
- Add support for jumbo data packet transmission in RxRPC sockets,
gluing multiple data packets in a single UDP packet.
- Support RxRPC RACK-TLP to manage packet loss and retransmission in
conjunction with the congestion control algorithm.
Driver API
----------
- Introduce a unified and structured interface for reporting PHY
statistics, exposing consistent data across different H/W via
ethtool.
- Make timestamping selectable, allow the user to select the desired
hwtstamp provider (PHY or MAC) administratively.
- Add support for configuring a header-data-split threshold (HDS)
value via ethtool, to deal with partial or buggy H/W implementation.
- Consolidate DSA drivers Energy Efficiency Ethernet support.
- Add EEE management to phylink, making use of the phylib
implementation.
- Add phylib support for in-band capabilities negotiation.
- Simplify how phylib-enabled mac drivers expose the supported
interfaces.
Tests and tooling
-----------------
- Make the YNL tool package-friendly to make it easier to deploy it
separately from the kernel.
- Increase TCP selftest coverage importing several packetdrill
test-cases.
- Regenerate the ethtool uapi header from the YNL spec,
to ease maintenance and future development.
- Add YNL support for decoding the link types used in net
self-tests, allowing a single build to run both net and
drivers/net.
Drivers
-------
- Ethernet high-speed NICs:
- nVidia/Mellanox (mlx5):
- add cross E-Switch QoS support
- add SW Steering support for ConnectX-8
- implement support for HW-Managed Flow Steering, improving the
rule deletion/insertion rate
- support for multi-host LAG
- Intel (ixgbe, ice, igb):
- ice: add support for devlink health events
- ixgbe: add initial support for E610 chipset variant
- igb: add support for AF_XDP zero-copy
- Meta:
- add support for basic RSS config
- allow changing the number of channels
- add hardware monitoring support
- Broadcom (bnxt):
- implement TCP data split and HDS threshold ethtool support,
enabling Device Memory TCP.
- Marvell Octeon:
- implement egress ipsec offload support for the cn10k family
- Hisilicon (HIBMC):
- implement unicast MAC filtering
- Ethernet NICs embedded and virtual:
- Convert UDP tunnel drivers to NETDEV_PCPU_STAT_DSTATS, avoiding
contented atomic operations for drop counters
- Freescale:
- quicc: phylink conversion
- enetc: support Tx and Rx checksum offload and improve TSO
performances
- MediaTek:
- airoha: introduce support for ETS and HTB Qdisc offload
- Microchip:
- lan78XX USB: preparation work for phylink conversion
- Synopsys (stmmac):
- support DWMAC IP on NXP Automotive SoCs S32G2xx/S32G3xx/S32R45
- refactor EEE support to leverage the new driver API
- optimize DMA and cache access to increase raw RX performances
by 40%
- TI:
- icssg-prueth: add multicast filtering support for VLAN
interface
- netkit:
- add ability to configure head/tailroom
- VXLAN:
- accepts packets with user-defined reserved bit
- Ethernet switches:
- Microchip:
- lan969x: add RGMII support
- lan969x: improve TX and RX performance using the FDMA engine
- nVidia/Mellanox:
- move Tx header handling to PCI driver, to ease XDP support
- Ethernet PHYs:
- Texas Instruments DP83822:
- add support for GPIO2 clock output
- Realtek:
- 8169: add support for RTL8125D rev.b
- rtl822x: add hwmon support for the temperature sensor
- Microchip:
- add support for RDS PTP hardware
- consolidate periodic output signal generation
- CAN:
- several DT-bindings to DT schema conversions
- tcan4x5x:
- add HW standby support
- support nWKRQ voltage selection
- kvaser:
- allowing Bus Error Reporting runtime configuration
- WiFi:
- the on-going Multi-Link Operation (MLO) effort continues, affecting
both the stack and in drivers
- mac80211/cfg80211:
- Emergency Preparedness Communication Services (EPCS) station mode
support
- support for adding and removing station links for MLO
- add support for WiFi 7/EHT mesh over 320 MHz channels
- report Tx power info for each link
- RealTek (rtw88):
- enable USB Rx aggregation and USB 3 to improve performance
- LED support
- RealTek (rtw89):
- refactor power save to support Multi-Link Operations
- add support for RTL8922AE-VS variant
- MediaTek (mt76):
- single wiphy multiband support (preparation for MLO)
- p2p device support
- add TP-Link TXE50UH USB adapter support
- Qualcomm (ath10k):
- support for the QCA6698AQ IP core
- Qualcomm (ath12k):
- enable MLO for QCN9274
- Bluetooth:
- Allow sysfs to trigger hdev reset, to allow recovering devices
not responsive from user-space
- MediaTek: add support for MT7922, MT7925, MT7921e devices
- Realtek: add support for RTL8851BE devices
- Qualcomm: add support for WCN785x devices
- ISO: allow BIG re-sync
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"This is slightly smaller than usual, with the most interesting work
being still around RTNL scope reduction.
Core:
- More core refactoring to reduce the RTNL lock contention, including
preparatory work for the per-network namespace RTNL lock, replacing
RTNL lock with a per device-one to protect NAPI-related net device
data and moving synchronize_net() calls outside such lock.
- Extend drop reasons usage, adding net scheduler, AF_UNIX, bridge
and more specific TCP coverage.
- Reduce network namespace tear-down time by removing per-subsystems
synchronize_net() in tipc and sched.
- Add flow label selector support for fib rules, allowing traffic
redirection based on such header field.
Netfilter:
- Do not remove netdev basechain when last device is gone, allowing
netdev basechains without devices.
- Revisit the flowtable teardown strategy, dealing better with fin,
reset and re-open events.
- Scale-up IP-vs connection dumping by avoiding linear search on each
restart.
Protocols:
- A significant XDP socket refactor, consolidating and optimizing
several helpers into the core
- Better scaling of ICMP rate-limiting, by removing false-sharing in
inet peers handling.
- Introduces netlink notifications for multicast IPv4 and IPv6
address changes.
- Add ipsec support for IP-TFS/AggFrag encapsulation, allowing
aggregation and fragmentation of the inner IP.
- Add sysctl to configure TIME-WAIT reuse delay for TCP sockets, to
avoid local port exhaustion issues when the average connection
lifetime is very short.
- Support updating keys (re-keying) for connections using kernel TLS
(for TLS 1.3 only).
- Support ipv4-mapped ipv6 address clients in smc-r v2.
- Add support for jumbo data packet transmission in RxRPC sockets,
gluing multiple data packets in a single UDP packet.
- Support RxRPC RACK-TLP to manage packet loss and retransmission in
conjunction with the congestion control algorithm.
Driver API:
- Introduce a unified and structured interface for reporting PHY
statistics, exposing consistent data across different H/W via
ethtool.
- Make timestamping selectable, allow the user to select the desired
hwtstamp provider (PHY or MAC) administratively.
- Add support for configuring a header-data-split threshold (HDS)
value via ethtool, to deal with partial or buggy H/W
implementation.
- Consolidate DSA drivers Energy Efficiency Ethernet support.
- Add EEE management to phylink, making use of the phylib
implementation.
- Add phylib support for in-band capabilities negotiation.
- Simplify how phylib-enabled mac drivers expose the supported
interfaces.
Tests and tooling:
- Make the YNL tool package-friendly to make it easier to deploy it
separately from the kernel.
- Increase TCP selftest coverage importing several packetdrill
test-cases.
- Regenerate the ethtool uapi header from the YNL spec, to ease
maintenance and future development.
- Add YNL support for decoding the link types used in net self-tests,
allowing a single build to run both net and drivers/net.
Drivers:
- Ethernet high-speed NICs:
- nVidia/Mellanox (mlx5):
- add cross E-Switch QoS support
- add SW Steering support for ConnectX-8
- implement support for HW-Managed Flow Steering, improving the
rule deletion/insertion rate
- support for multi-host LAG
- Intel (ixgbe, ice, igb):
- ice: add support for devlink health events
- ixgbe: add initial support for E610 chipset variant
- igb: add support for AF_XDP zero-copy
- Meta:
- add support for basic RSS config
- allow changing the number of channels
- add hardware monitoring support
- Broadcom (bnxt):
- implement TCP data split and HDS threshold ethtool support,
enabling Device Memory TCP.
- Marvell Octeon:
- implement egress ipsec offload support for the cn10k family
- Hisilicon (HIBMC):
- implement unicast MAC filtering
- Ethernet NICs embedded and virtual:
- Convert UDP tunnel drivers to NETDEV_PCPU_STAT_DSTATS, avoiding
contented atomic operations for drop counters
- Freescale:
- quicc: phylink conversion
- enetc: support Tx and Rx checksum offload and improve TSO
performances
- MediaTek:
- airoha: introduce support for ETS and HTB Qdisc offload
- Microchip:
- lan78XX USB: preparation work for phylink conversion
- Synopsys (stmmac):
- support DWMAC IP on NXP Automotive SoCs S32G2xx/S32G3xx/S32R45
- refactor EEE support to leverage the new driver API
- optimize DMA and cache access to increase raw RX performances
by 40%
- TI:
- icssg-prueth: add multicast filtering support for VLAN
interface
- netkit:
- add ability to configure head/tailroom
- VXLAN:
- accepts packets with user-defined reserved bit
- Ethernet switches:
- Microchip:
- lan969x: add RGMII support
- lan969x: improve TX and RX performance using the FDMA engine
- nVidia/Mellanox:
- move Tx header handling to PCI driver, to ease XDP support
- Ethernet PHYs:
- Texas Instruments DP83822:
- add support for GPIO2 clock output
- Realtek:
- 8169: add support for RTL8125D rev.b
- rtl822x: add hwmon support for the temperature sensor
- Microchip:
- add support for RDS PTP hardware
- consolidate periodic output signal generation
- CAN:
- several DT-bindings to DT schema conversions
- tcan4x5x:
- add HW standby support
- support nWKRQ voltage selection
- kvaser:
- allowing Bus Error Reporting runtime configuration
- WiFi:
- the on-going Multi-Link Operation (MLO) effort continues,
affecting both the stack and in drivers
- mac80211/cfg80211:
- Emergency Preparedness Communication Services (EPCS) station
mode support
- support for adding and removing station links for MLO
- add support for WiFi 7/EHT mesh over 320 MHz channels
- report Tx power info for each link
- RealTek (rtw88):
- enable USB Rx aggregation and USB 3 to improve performance
- LED support
- RealTek (rtw89):
- refactor power save to support Multi-Link Operations
- add support for RTL8922AE-VS variant
- MediaTek (mt76):
- single wiphy multiband support (preparation for MLO)
- p2p device support
- add TP-Link TXE50UH USB adapter support
- Qualcomm (ath10k):
- support for the QCA6698AQ IP core
- Qualcomm (ath12k):
- enable MLO for QCN9274
- Bluetooth:
- Allow sysfs to trigger hdev reset, to allow recovering devices
not responsive from user-space
- MediaTek: add support for MT7922, MT7925, MT7921e devices
- Realtek: add support for RTL8851BE devices
- Qualcomm: add support for WCN785x devices
- ISO: allow BIG re-sync"
* tag 'net-next-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1386 commits)
net/rose: prevent integer overflows in rose_setsockopt()
net: phylink: fix regression when binding a PHY
net: ethernet: ti: am65-cpsw: streamline TX queue creation and cleanup
net: ethernet: ti: am65-cpsw: streamline RX queue creation and cleanup
net: ethernet: ti: am65-cpsw: ensure proper channel cleanup in error path
ipv6: Convert inet6_rtm_deladdr() to per-netns RTNL.
ipv6: Convert inet6_rtm_newaddr() to per-netns RTNL.
ipv6: Move lifetime validation to inet6_rtm_newaddr().
ipv6: Set cfg.ifa_flags before device lookup in inet6_rtm_newaddr().
ipv6: Pass dev to inet6_addr_add().
ipv6: Convert inet6_ioctl() to per-netns RTNL.
ipv6: Hold rtnl_net_lock() in addrconf_init() and addrconf_cleanup().
ipv6: Hold rtnl_net_lock() in addrconf_dad_work().
ipv6: Hold rtnl_net_lock() in addrconf_verify_work().
ipv6: Convert net.ipv6.conf.${DEV}.XXX sysctl to per-netns RTNL.
ipv6: Add __in6_dev_get_rtnl_net().
net: stmmac: Drop redundant skb_mark_for_recycle() for SKB frags
net: mii: Fix the Speed display when the network cable is not connected
sysctl net: Remove macro checks for CONFIG_SYSCTL
eth: bnxt: update header sizing defaults
...
|
||
|
Linus Torvalds
|
f96a974170 |
lsm/stable-6.14 PR 20250121
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Kuniyuki Iwashima
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f7a6082b5e |
ipv6: Add __in6_dev_get_rtnl_net().
We will convert rtnl_lock() with rtnl_net_lock(), and we want to convert __in6_dev_get() too. __in6_dev_get() uses rcu_dereference_rtnl(), but as written in its comment, rtnl_dereference() or rcu_dereference() is preferable. Let's add __in6_dev_get_rtnl_net() that uses rtnl_net_dereference(). We can add the RCU version helper later if needed. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250115080608.28127-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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4fd001f5f3 |
netfilter pull request 25-01-19
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Merge tag 'nf-next-25-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following batch contains Netfilter updates for net-next:
1) Unbreak set size settings for rbtree set backend, intervals in
rbtree are represented as two elements, this detailed is leaked
to userspace leading to bogus ENOSPC from control plane.
2) Remove dead code in br_netfilter's br_nf_pre_routing_finish()
due to never matching error when looking up for route,
from Antoine Tenart.
3) Simplify check for device already in use in flowtable,
from Phil Sutter.
4) Three patches to restore interface name field in struct nft_hook
and use it, this is to prepare for wildcard interface support.
From Phil Sutter.
5) Do not remove netdev basechain when last device is gone, this is
for consistency with the flowtable behaviour. This allows for netdev
basechains without devices. Another patch to simplify netdev event
notifier after this update. Also from Phil.
6) Two patches to add missing spinlock when flowtable updates TCP
state flags, from Florian Westphal.
7) Simplify __nf_ct_refresh_acct() by removing skbuff parameter,
also from Florian.
8) Flowtable gc now extends ct timeout for offloaded flow. This
is to address a possible race that leads to handing over flow
to classic path with long ct timeouts.
9) Tear down flow if cached rt_mtu is stale, before this patch,
packet is handed over to classic path but flow entry still remained
in place.
10) Revisit the flowtable teardown strategy, which was originally
designed to release flowtable hardware entries early. Add a new
CLOSING flag that still allows hardware to release entries when
fin/rst is seen, but keeps the flow entry in place when the
TCP connection is closed. Release flow after timeout or when a new
syn packet is seen for TCP reopen scenario.
* tag 'nf-next-25-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: flowtable: add CLOSING state
netfilter: flowtable: teardown flow if cached mtu is stale
netfilter: conntrack: rework offload nf_conn timeout extension logic
netfilter: conntrack: remove skb argument from nf_ct_refresh
netfilter: nft_flow_offload: update tcp state flags under lock
netfilter: nft_flow_offload: clear tcp MAXACK flag before moving to slowpath
netfilter: nf_tables: Simplify chain netdev notifier
netfilter: nf_tables: Tolerate chains with no remaining hooks
netfilter: nf_tables: Compare netdev hooks based on stored name
netfilter: nf_tables: Use stored ifname in netdev hook dumps
netfilter: nf_tables: Store user-defined hook ifname
netfilter: nf_tables: Flowtable hook's pf value never varies
netfilter: br_netfilter: remove unused conditional and dead code
netfilter: nf_tables: fix set size with rbtree backend
====================
Link: https://patch.msgid.link/20250119172051.8261-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski
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3c836451ca |
net: move HDS config from ethtool state
Separate the HDS config from the ethtool state struct. The HDS config contains just simple parameters, not state. Having it as a separate struct will make it easier to clone / copy and also long term potentially make it per-queue. Reviewed-by: Michael Chan <michael.chan@broadcom.com> Link: https://patch.msgid.link/20250119020518.1962249-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Kuniyuki Iwashima
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b3e365bbf4 |
af_unix: Set drop reason in unix_dgram_disconnected().
unix_dgram_disconnected() is called from two places:
1. when a connect()ed socket dis-connect()s or re-connect()s to
another socket
2. when sendmsg() fails because the peer socket that the client
has connect()ed to has been close()d
Then, the client's recv queue is purged to remove all messages from
the old peer socket.
Let's define a new drop reason for that case.
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>>
>>> # s1 has a message from s2
>>> s1, s2 = socketpair(AF_UNIX, SOCK_DGRAM)
>>> s2.send(b'hello world')
>>>
>>> # re-connect() drops the message from s2
>>> s3 = socket(AF_UNIX, SOCK_DGRAM)
>>> s3.bind('')
>>> s1.connect(s3.getsockname())
# cat /sys/kernel/tracing/trace_pipe
python3-250 ... kfree_skb: ... location=skb_queue_purge_reason+0xdc/0x110 reason: UNIX_DISCONNECT
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-8-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima
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533643b091 |
af_unix: Set drop reason in manage_oob().
AF_UNIX SOCK_STREAM socket supports MSG_OOB.
When OOB data is sent to a socket, recv() will break at that point.
If the next recv() does not have MSG_OOB, the normal data following
the OOB data is returned.
Then, the OOB skb is dropped.
Let's define a new drop reason for that case in manage_oob().
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>> s1, s2 = socketpair(AF_UNIX)
>>> s1.send(b'a', MSG_OOB)
>>> s1.send(b'b')
>>> s2.recv(2)
b'b'
# cat /sys/kernel/tracing/trace_pipe
...
python3-223 ... kfree_skb: ... location=unix_stream_read_generic+0x59e/0xc20 reason: UNIX_SKIP_OOB
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-6-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima
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c32f0bd7d4 |
af_unix: Set drop reason in unix_release_sock().
unix_release_sock() is called when the last refcnt of struct file
is released.
Let's define a new drop reason SKB_DROP_REASON_SOCKET_CLOSE and
set it for kfree_skb() in unix_release_sock().
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>> s1, s2 = socketpair(AF_UNIX)
>>> s1.send(b'hello world')
>>> s2.close()
# cat /sys/kernel/tracing/trace_pipe
...
python3-280 ... kfree_skb: ... protocol=0 location=unix_release_sock+0x260/0x420 reason: SOCKET_CLOSE
To be precise, unix_release_sock() is also called for a new child
socket in unix_stream_connect() when something fails, but the new
sk does not have skb in the recv queue then and no event is logged.
Note that only tcp_inbound_ao_hash() uses a similar drop reason,
SKB_DROP_REASON_TCP_CLOSE, and this can be generalised later.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Kuniyuki Iwashima
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454d402481 |
net: dropreason: Gather SOCKET_ drop reasons.
The following patch adds a new drop reason starting with the SOCKET_ prefix. Let's gather the existing SOCKET_ reasons. Note that the order is not part of uAPI. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250116053441.5758-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Ales Nezbeda
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457bb7970a |
net: macsec: Add endianness annotations in salt struct
This change resolves warning produced by sparse tool as currently
there is a mismatch between normal generic type in salt and endian
annotated type in macsec driver code. Endian annotated types should
be used here.
Sparse output:
warning: restricted ssci_t degrades to integer
warning: incorrect type in assignment (different base types)
expected restricted ssci_t [usertype] ssci
got unsigned int
warning: restricted __be64 degrades to integer
warning: incorrect type in assignment (different base types)
expected restricted __be64 [usertype] pn
got unsigned long long
Signed-off-by: Ales Nezbeda <anezbeda@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Xin Long
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a12c76a033 |
net: sched: refine software bypass handling in tc_run
This patch addresses issues with filter counting in block (tcf_block), particularly for software bypass scenarios, by introducing a more accurate mechanism using useswcnt. Previously, filtercnt and skipswcnt were introduced by: Commit |
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Pablo Neira Ayuso
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fdbaf51633 |
netfilter: flowtable: add CLOSING state
tcp rst/fin packet triggers an immediate teardown of the flow which results in sending flows back to the classic forwarding path. This behaviour was introduced by: |
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Florian Westphal
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03428ca5ce |
netfilter: conntrack: rework offload nf_conn timeout extension logic
Offload nf_conn entries may not see traffic for a very long time.
To prevent incorrect 'ct is stale' checks during nf_conntrack table
lookup, the gc worker extends the timeout nf_conn entries marked for
offload to a large value.
The existing logic suffers from a few problems.
Garbage collection runs without locks, its unlikely but possible
that @ct is removed right after the 'offload' bit test.
In that case, the timeout of a new/reallocated nf_conn entry will
be increased.
Prevent this by obtaining a reference count on the ct object and
re-check of the confirmed and offload bits.
If those are not set, the ct is being removed, skip the timeout
extension in this case.
Parallel teardown is also problematic:
cpu1 cpu2
gc_worker
calls flow_offload_teardown()
tests OFFLOAD bit, set
clear OFFLOAD bit
ct->timeout is repaired (e.g. set to timeout[UDP_CT_REPLIED])
nf_ct_offload_timeout() called
expire value is fetched
<INTERRUPT>
-> NF_CT_DAY timeout for flow that isn't offloaded
(and might not see any further packets).
Use cmpxchg: if ct->timeout was repaired after the 2nd 'offload bit' test
passed, then ct->timeout will only be updated of ct->timeout was not
altered in between.
As we already have a gc worker for flowtable entries, ct->timeout repair
can be handled from the flowtable gc worker.
This avoids having flowtable specific logic in the conntrack core
and avoids checking entries that were never offloaded.
This allows to remove the nf_ct_offload_timeout helper.
Its safe to use in the add case, but not on teardown.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Florian Westphal
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31768596b1 |
netfilter: conntrack: remove skb argument from nf_ct_refresh
Its not used (and could be NULL), so remove it. This allows to use nf_ct_refresh in places where we don't have an skb without having to double-check that skb == NULL would be safe. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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Phil Sutter
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fc0133428e |
netfilter: nf_tables: Tolerate chains with no remaining hooks
Do not drop a netdev-family chain if the last interface it is registered for vanishes. Users dumping and storing the ruleset upon shutdown to restore it upon next boot may otherwise lose the chain and all contained rules. They will still lose the list of devices, a later patch will fix that. For now, this aligns the event handler's behaviour with that for flowtables. The controversal situation at netns exit should be no problem here: event handler will unregister the hooks, core nftables cleanup code will drop the chain itself. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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Phil Sutter
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b7c2d793c2 |
netfilter: nf_tables: Store user-defined hook ifname
Prepare for hooks with NULL ops.dev pointer (due to non-existent device) and store the interface name and length as specified by the user upon creation. No functional change intended. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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Pablo Neira Ayuso
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8d738c1869 |
netfilter: nf_tables: fix set size with rbtree backend
The existing rbtree implementation uses singleton elements to represent
ranges, however, userspace provides a set size according to the number
of ranges in the set.
Adjust provided userspace set size to the number of singleton elements
in the kernel by multiplying the range by two.
Check if the no-match all-zero element is already in the set, in such
case release one slot in the set size.
Fixes:
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Jakub Kicinski
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1a280c54fd |
bluetooth-next pull request for net-next:
- btusb: Add new VID/PID 13d3/3610 for MT7922 - btusb: Add new VID/PID 13d3/3628 for MT7925 - btusb: Add MT7921e device 13d3:3576 - btusb: Add RTL8851BE device 13d3:3600 - btusb: Add ID 0x2c7c:0x0130 for Qualcomm WCN785x - btusb: add sysfs attribute to control USB alt setting - qca: Expand firmware-name property - qca: Fix poor RF performance for WCN6855 - L2CAP: handle NULL sock pointer in l2cap_sock_alloc - Allow reset via sysfs - ISO: Allow BIG re-sync - dt-bindings: Utilize PMU abstraction for WCN6750 - MGMT: Mark LL Privacy as stable -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEE7E6oRXp8w05ovYr/9JCA4xAyCykFAmeIIfsZHGx1aXoudm9u LmRlbnR6QGludGVsLmNvbQAKCRD0kIDjEDILKfeQD/9PPfKysA655jB+EOnMJ1Qt 43uibOX3aaqswjtynwR3fNOB5rnibev8uHWJlKh4CXj2X6v0hmJkz+sYSgRzLUZP 4Lap/AdY0jqTFlaIzmKGc6fTp/cxUYd/guUEMk8tlOLlTPJ7WFIAEq7Tu2LXe8VS QGWXdzgsXMoQ36PmcfnM2TTsz+5U674nCvGF5IFSJABnnv/WJUxmbyDnZYAm66R5 bfmOJ7qzWgq+exYz9g8V5Frwvmp92AlndHcuHIvAvvTryfNgOeP91JAWgczGWhfR 2qwqVAn9Tkgu2GNkCPbXUnU+wPYBUc7APjLtS0kZDm/sYugZr7Q0Omqt/9YuyhsD 7pvYOj1bNrpTjHHqNvD5qY3O2882wmm85DIyE1mfMDEknc5n26L68YQKrXdrSeqS M/F6FGdUxXapcdtu8+lNMgv8ByvVdPo0I8cBhJSNyNQ7P2D1q9+MFTBnAIcDD0aB q9vgMIzNCrZAHai3YzjI8BxEofFn12WO1LyKJAgvknfFDS2CBrZFt39QoqPDDvoe wACjcf1A55FFvTUF91KClWSEBOP/XubZmc7SO/e8TSlll9maOROVooRWMq/dAKeR Yau1TBpzKmRnj+UxFpIrkP7yRlUADNUWQ5GnsE+q26IkyShZ5vgir/GS9pgE6kQr 5f/Qw6rlvLVvqAnPOAqFPg== =21qg -----END PGP SIGNATURE----- Merge tag 'for-net-next-2025-01-15' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Luiz Augusto von Dentz says: ==================== bluetooth-next pull request for net-next: - btusb: Add new VID/PID 13d3/3610 for MT7922 - btusb: Add new VID/PID 13d3/3628 for MT7925 - btusb: Add MT7921e device 13d3:3576 - btusb: Add RTL8851BE device 13d3:3600 - btusb: Add ID 0x2c7c:0x0130 for Qualcomm WCN785x - btusb: add sysfs attribute to control USB alt setting - qca: Expand firmware-name property - qca: Fix poor RF performance for WCN6855 - L2CAP: handle NULL sock pointer in l2cap_sock_alloc - Allow reset via sysfs - ISO: Allow BIG re-sync - dt-bindings: Utilize PMU abstraction for WCN6750 - MGMT: Mark LL Privacy as stable * tag 'for-net-next-2025-01-15' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next: (23 commits) Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync Bluetooth: qca: Fix poor RF performance for WCN6855 Bluetooth: Allow reset via sysfs Bluetooth: Get rid of cmd_timeout and use the reset callback Bluetooth: Remove the cmd timeout count in btusb Bluetooth: Use str_enable_disable-like helpers Bluetooth: btmtk: Remove resetting mt7921 before downloading the fw Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc Bluetooth: btusb: Add RTL8851BE device 13d3:3600 dt-bindings: bluetooth: Utilize PMU abstraction for WCN6750 Bluetooth: btusb: Add MT7921e device 13d3:3576 Bluetooth: btrtl: check for NULL in btrtl_setup_realtek() Bluetooth: btbcm: Fix NULL deref in btbcm_get_board_name() Bluetooth: qca: Expand firmware-name to load specific rampatch Bluetooth: qca: Update firmware-name to support board specific nvm dt-bindings: net: bluetooth: qca: Expand firmware-name property Bluetooth: btusb: Add new VID/PID 13d3/3628 for MT7925 Bluetooth: btusb: Add new VID/PID 13d3/3610 for MT7922 Bluetooth: btusb: add sysfs attribute to control USB alt setting Bluetooth: btusb: Add ID 0x2c7c:0x0130 for Qualcomm WCN785x ... ==================== Link: https://patch.msgid.link/20250117213203.3921910-1-luiz.dentz@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Jakub Kicinski
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66cc61a25c |
wireless-next patches for v6.14
Most likely the last "new features" pull request for v6.14 and this is a bigger one. Multi-Link Operation (MLO) work continues both in stack in drivers. Few new devices supported and usual fixes all over. Major changes: cfg80211 * Emergency Preparedness Communication Services (EPCS) station mode support mac80211 * an option to filter a sta from being flushed * some support for RX Operating Mode Indication (OMI) power saving * support for adding and removing station links for MLO iwlwifi * new device ids * rework firmware error handling and restart rtw88 * RTL8812A: RFE type 2 support * LED support rtw89 * variant info to support RTL8922AE-VS mt76 * mt7996: single wiphy multiband support (preparation for MLO) * mt7996: support for more variants * mt792x: P2P_DEVICE support * mt7921u: TP-Link TXE50UH support ath12k * enable MLO for QCN9274 (although it seems to be broken with dual band devices) * MLO radar detection support * debugfs: transmit buffer OFDMA, AST entry and puncture stats -----BEGIN PGP SIGNATURE----- iQFFBAABCgAvFiEEiBjanGPFTz4PRfLobhckVSbrbZsFAmeKvq8RHGt2YWxvQGtl cm5lbC5vcmcACgkQbhckVSbrbZtJ3wf/bMRrED1k1xtC117yxBthXOZj7Ae0MG3s cqIDBZ2MSmi596jfmc/FRFTN6Rie7+WQg8MGhpWpJt4WyvCd+IqmluLwuJGg3oHz KdDQHN766cPb50mykTBY0m+Uh9eqyhaoozzK+KbrJZNLUt/Ri3DOdPInWP/ODKuT uo9xv25zmOMQuUJlhOlFpOW68y6isuMsnPpgTvbtjndw3nPe+tVIfGPdg3xeQnq1 SG05wmOeJ8obmO1VsnmHPN20F5PfS5t2asu12UafR7KTiJOdP2QXKGNTy+ag7fQ/ 9Sq6SzuPpbHHJJ93f0aJOkTUKdQVmk2xfCYNOyPNu1ewLqiVlvnkew== =Vu+D -----END PGP SIGNATURE----- Merge tag 'wireless-next-2025-01-17' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.14 Most likely the last "new features" pull request for v6.14 and this is a bigger one. Multi-Link Operation (MLO) work continues both in stack in drivers. Few new devices supported and usual fixes all over. Major changes: cfg80211 * Emergency Preparedness Communication Services (EPCS) station mode support mac80211 * an option to filter a sta from being flushed * some support for RX Operating Mode Indication (OMI) power saving * support for adding and removing station links for MLO iwlwifi * new device ids * rework firmware error handling and restart rtw88 * RTL8812A: RFE type 2 support * LED support rtw89 * variant info to support RTL8922AE-VS mt76 * mt7996: single wiphy multiband support (preparation for MLO) * mt7996: support for more variants * mt792x: P2P_DEVICE support * mt7921u: TP-Link TXE50UH support ath12k * enable MLO for QCN9274 (although it seems to be broken with dual band devices) * MLO radar detection support * debugfs: transmit buffer OFDMA, AST entry and puncture stats * tag 'wireless-next-2025-01-17' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (322 commits) wifi: brcmfmac: fix NULL pointer dereference in brcmf_txfinalize() wifi: rtw88: add RTW88_LEDS depends on LEDS_CLASS to Kconfig wifi: wilc1000: unregister wiphy only after netdev registration wifi: cfg80211: adjust allocation of colocated AP data wifi: mac80211: fix memory leak in ieee80211_mgd_assoc_ml_reconf() wifi: ath12k: fix key cache handling wifi: ath12k: Fix uninitialized variable access in ath12k_mac_allocate() function wifi: ath12k: Remove ath12k_get_num_hw() helper function wifi: ath12k: Refactor the ath12k_hw get helper function argument wifi: ath12k: Refactor ath12k_hw set helper function argument wifi: mt76: mt7996: add implicit beamforming support for mt7992 wifi: mt76: mt7996: fix beacon command during disabling wifi: mt76: mt7996: fix ldpc setting wifi: mt76: mt7996: fix definition of tx descriptor wifi: mt76: connac: adjust phy capabilities based on band constraints wifi: mt76: mt7996: fix incorrect indexing of MIB FW event wifi: mt76: mt7996: fix HE Phy capability wifi: mt76: mt7996: fix the capability of reception of EHT MU PPDU wifi: mt76: mt7996: add max mpdu len capability wifi: mt76: mt7921: avoid undesired changes of the preset regulatory domain ... ==================== Link: https://patch.msgid.link/20250117203529.72D45C4CEDD@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Vladimir Oltean
|
4b0a3ffa79 |
net: dsa: implement get_ts_stats ethtool operation for user ports
Integrate with the standard infrastructure for reporting hardware packet timestamping statistics. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://patch.msgid.link/20250116104628.123555-3-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Jakub Kicinski
|
ba0209bd18 |
Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says: ==================== ice: support FW Recovery Mode Konrad Knitter says: Enable update of card in FW Recovery Mode * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: ice: support FW Recovery Mode devlink: add devl guard pldmfw: enable selected component update ==================== Link: https://patch.msgid.link/20250116212059.1254349-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Konrad Knitter
|
0502bd2e06 |
devlink: add devl guard
Add devl guard for scoped_guard().
Example usage:
scoped_guard(devl, priv_to_devlink(pf)) {
err = init_devlink(pf);
if (err)
return err;
}
Co-developed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Konrad Knitter <konrad.knitter@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Jakub Kicinski
|
2ee738e90e |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.13-rc8). Conflicts: drivers/net/ethernet/realtek/r8169_main.c |
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|
Linus Torvalds
|
ce69b40190 |
Current release - regressions:
- core: avoid CFI problems with sock priv helpers
- xsk: bring back busy polling support
- netpoll: ensure skb_pool list is always initialized
Current release - new code bugs:
- core: make page_pool_ref_netmem work with net iovs
- ipv4: route: fix drop reason being overridden in ip_route_input_slow
- udp: make rehash4 independent in udp_lib_rehash()
Previous releases - regressions:
- bpf: fix bpf_sk_select_reuseport() memory leak
- openvswitch: fix lockup on tx to unregistering netdev with carrier
- mptcp: be sure to send ack when mptcp-level window re-opens
- eth: bnxt: always recalculate features after XDP clearing, fix null-deref
- eth: mlx5: fix sub-function add port error handling
- eth: fec: handle page_pool_dev_alloc_pages error
Previous releases - always broken:
- vsock: some fixes due to transport de-assignment
- eth: ice: fix E825 initialization
- eth: mlx5e: fix inversion dependency warning while enabling IPsec tunnel
- eth: gtp: destroy device along with udp socket's netns dismantle.
- eth: xilinx: axienet: Fix IRQ coalescing packet count overflow
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Notably this includes fixes for a few regressions spotted very
recently. No known outstanding ones.
Current release - regressions:
- core: avoid CFI problems with sock priv helpers
- xsk: bring back busy polling support
- netpoll: ensure skb_pool list is always initialized
Current release - new code bugs:
- core: make page_pool_ref_netmem work with net iovs
- ipv4: route: fix drop reason being overridden in
ip_route_input_slow
- udp: make rehash4 independent in udp_lib_rehash()
Previous releases - regressions:
- bpf: fix bpf_sk_select_reuseport() memory leak
- openvswitch: fix lockup on tx to unregistering netdev with carrier
- mptcp: be sure to send ack when mptcp-level window re-opens
- eth:
- bnxt: always recalculate features after XDP clearing, fix
null-deref
- mlx5: fix sub-function add port error handling
- fec: handle page_pool_dev_alloc_pages error
Previous releases - always broken:
- vsock: some fixes due to transport de-assignment
- eth:
- ice: fix E825 initialization
- mlx5e: fix inversion dependency warning while enabling IPsec
tunnel
- gtp: destroy device along with udp socket's netns dismantle.
- xilinx: axienet: Fix IRQ coalescing packet count overflow"
* tag 'net-6.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (44 commits)
netdev: avoid CFI problems with sock priv helpers
net/mlx5e: Always start IPsec sequence number from 1
net/mlx5e: Rely on reqid in IPsec tunnel mode
net/mlx5e: Fix inversion dependency warning while enabling IPsec tunnel
net/mlx5: Clear port select structure when fail to create
net/mlx5: SF, Fix add port error handling
net/mlx5: Fix a lockdep warning as part of the write combining test
net/mlx5: Fix RDMA TX steering prio
net: make page_pool_ref_netmem work with net iovs
net: ethernet: xgbe: re-add aneg to supported features in PHY quirks
net: pcs: xpcs: actively unset DW_VR_MII_DIG_CTRL1_2G5_EN for 1G SGMII
net: pcs: xpcs: fix DW_VR_MII_DIG_CTRL1_2G5_EN bit being set for 1G SGMII w/o inband
selftests: net: Adapt ethtool mq tests to fix in qdisc graft
net: fec: handle page_pool_dev_alloc_pages error
net: netpoll: ensure skb_pool list is always initialized
net: xilinx: axienet: Fix IRQ coalescing packet count overflow
nfp: bpf: prevent integer overflow in nfp_bpf_event_output()
selftests: mptcp: avoid spurious errors on disconnect
mptcp: fix spurious wake-up on under memory pressure
mptcp: be sure to send ack when mptcp-level window re-opens
...
|
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Eric Dumazet
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0734d7c3d9 |
net: expedite synchronize_net() for cleanup_net()
cleanup_net() is the single thread responsible for netns dismantles, and a serious bottleneck. Before we can get per-netns RTNL, make sure all synchronize_net() called from this thread are using rcu_synchronize_expedited(). v3: deal with CONFIG_NET_NS=n Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jesse Brandeburg <jbrandeburg@cloudflare.com> Link: https://patch.msgid.link/20250114205531.967841-2-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Pavel Begunkov
|
cbc16bceea |
net: make page_pool_ref_netmem work with net iovs
page_pool_ref_netmem() should work with either netmem representation, but
currently it casts to a page with netmem_to_page(), which will fail with
net iovs. Use netmem_get_pp_ref_count_ref() instead.
Fixes:
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Hsin-chen Chuang
|
f07d478090 |
Bluetooth: Get rid of cmd_timeout and use the reset callback
The hdev->reset is never used now and the hdev->cmd_timeout actually does reset. This patch changes the call path from hdev->cmd_timeout -> vendor_cmd_timeout -> btusb_reset -> hdev->reset , to hdev->reset -> vendor_reset -> btusb_reset Which makes it clear when we export the hdev->reset to a wider usage e.g. allowing reset from sysfs. This patch doesn't introduce any behavior change. Signed-off-by: Hsin-chen Chuang <chharry@chromium.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> |
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|
Dr. David Alan Gilbert
|
b05ce88960 |
Bluetooth: hci: Remove deadcode
hci_bdaddr_list_del_with_flags() was added in 2020's commit |
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Luiz Augusto von Dentz
|
e209e5ccc5 |
Bluetooth: MGMT: Mark LL Privacy as stable
This marks LL Privacy as stable by removing its experimental UUID and move its functionality to Device Flag (HCI_CONN_FLAG_ADDRESS_RESOLUTION) which can be set by MGMT Device Set Flags so userspace retain control of the feature. Link: https://github.com/bluez/bluez/issues/1028 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> |
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Eric Dumazet
|
d16b344790 |
tcp: add LINUX_MIB_PAWS_OLD_ACK SNMP counter
Prior patch in the series added TCP_RFC7323_PAWS_ACK drop reason. This patch adds the corresponding SNMP counter, for folks using nstat instead of tracing for TCP diagnostics. nstat -az | grep PAWSOldAck Suggested-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Tested-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20250113135558.3180360-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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|
Eric Dumazet
|
124c4c32e9 |
tcp: add TCP_RFC7323_PAWS_ACK drop reason
XPS can cause reorders because of the relaxed OOO
conditions for pure ACK packets.
For hosts not using RFS, what can happpen is that ACK
packets are sent on behalf of the cpu processing NIC
interrupts, selecting TX queue A for ACK packet P1.
Then a subsequent sendmsg() can run on another cpu.
TX queue selection uses the socket hash and can choose
another queue B for packets P2 (with payload).
If queue A is more congested than queue B,
the ACK packet P1 could be sent on the wire after
P2.
A linux receiver when processing P1 (after P2) currently increments
LINUX_MIB_PAWSESTABREJECTED (TcpExtPAWSEstab)
and use TCP_RFC7323_PAWS drop reason.
It might also send a DUPACK if not rate limited.
In order to better understand this pattern, this
patch adds a new drop_reason : TCP_RFC7323_PAWS_ACK.
For old ACKS like these, we no longer increment
LINUX_MIB_PAWSESTABREJECTED and no longer sends a DUPACK,
keeping credit for other more interesting DUPACK.
perf record -e skb:kfree_skb -a
perf script
...
swapper 0 [148] 27475.438637: skb:kfree_skb: ... location=tcp_validate_incoming+0x4f0 reason: TCP_RFC7323_PAWS_ACK
swapper 0 [208] 27475.438706: skb:kfree_skb: ... location=tcp_validate_incoming+0x4f0 reason: TCP_RFC7323_PAWS_ACK
swapper 0 [208] 27475.438908: skb:kfree_skb: ... location=tcp_validate_incoming+0x4f0 reason: TCP_RFC7323_PAWS_ACK
swapper 0 [148] 27475.439010: skb:kfree_skb: ... location=tcp_validate_incoming+0x4f0 reason: TCP_RFC7323_PAWS_ACK
swapper 0 [148] 27475.439214: skb:kfree_skb: ... location=tcp_validate_incoming+0x4f0 reason: TCP_RFC7323_PAWS_ACK
swapper 0 [208] 27475.439286: skb:kfree_skb: ... location=tcp_validate_incoming+0x4f0 reason: TCP_RFC7323_PAWS_ACK
...
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://patch.msgid.link/20250113135558.3180360-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
Paolo Abeni
|
624d7a8a9d |
netfilter pull request 25-01-11
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|
Benjamin Berg
|
6bd9a087c8 |
wifi: mac80211: set key link ID to the deflink one
When in non-MLO mode, the key ID was set to -1 even for keys that are not pairwise. Change the link ID to be the link ID of the deflink in this case so that drivers do not need to special cases for this. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250102161730.0c066f084677.I4a5c288465e75119edb6a0df90dddf6f30d14a02@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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|
Ilan Peer
|
904c277342 |
wifi: cfg80211: Add support for controlling EPCS
Add support for configuring Emergency Preparedness Communication Services (EPCS) for station mode. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20250102161730.ea54ac94445c.I11d750188bc0871e13e86146a3b5cc048d853e69@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com> |