Song Liu d88bb5eed0 bpf: Fill new bpf_prog_pack with illegal instructions ...

bpf_prog_pack enables sharing huge pages among multiple BPF programs.
These pages are marked as executable before the JIT engine fill it with
BPF programs. To make these pages safe, fill the hole bpf_prog_pack with
illegal instructions before making it executable.

Fixes: 57631054fa ("bpf: Introduce bpf_prog_pack allocator")
Fixes: 33c9805860 ("bpf: Introduce bpf_jit_binary_pack_[alloc|finalize|free]")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220520235758.1858153-2-song@kernel.org

2022-05-23 23:07:29 +02:00

..

preload

bpf: Remove redundant slash

2022-03-07 22:19:32 -08:00

arraymap.c

bpf: add bpf_map_lookup_percpu_elem for percpu map

2022-05-11 18:16:54 -07:00

bloom_filter.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

bpf_inode_storage.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

bpf_iter.c

bpf: Remove redundant assignment to meta.seq in __task_seq_show()

2022-04-11 21:14:34 +02:00

bpf_local_storage.c

bpf: Fix usage of trace RCU in local storage.

2022-04-19 17:55:45 -07:00

bpf_lru_list.c

bpf_lru_list: Read double-checked variable once without lock

2021-02-10 15:54:26 -08:00

bpf_lru_list.h

bpf: Fix a typo "inacitve" -> "inactive"

2020-04-06 21:54:10 +02:00

bpf_lsm.c

bpf, x86: Attach a cookie to fentry/fexit/fmod_ret/lsm.

2022-05-10 21:58:31 -07:00

bpf_struct_ops_types.h

bpf: Add dummy BPF STRUCT_OPS for test purpose

2021-11-01 14:10:00 -07:00

bpf_struct_ops.c

bpf, x86: Generate trampolines from bpf_tramp_links

2022-05-10 17:50:40 -07:00

bpf_task_storage.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

btf.c

bpf: Allow kfunc in tracing and syscall programs.

2022-05-20 19:28:33 -07:00

cgroup.c

bpf: Use bpf_prog_run_array_cg_flags everywhere

2022-04-25 17:03:57 -07:00

core.c

bpf: Fill new bpf_prog_pack with illegal instructions

2022-05-23 23:07:29 +02:00

cpumap.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

devmap.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

disasm.c

bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause

2021-09-02 14:49:23 +02:00

disasm.h

bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause

2021-09-02 14:49:23 +02:00

dispatcher.c

bpf: Remove bpf_image tree

2020-03-13 12:49:52 -07:00

hashtab.c

bpf: add bpf_map_lookup_percpu_elem for percpu map

2022-05-11 18:16:54 -07:00

helpers.c

bpf: Add MEM_UNINIT as a bpf_type_flag

2022-05-13 15:56:26 -07:00

inode.c

bpf: Convert bpf_preload.ko to use light skeleton.

2022-02-10 23:31:51 +01:00

Kconfig

bpf: Add "live packet" mode for XDP in BPF_PROG_RUN

2022-03-09 14:19:22 -08:00

link_iter.c

bpf: Add bpf_link iterator

2022-05-10 11:20:45 -07:00

local_storage.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

lpm_trie.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

Makefile

bpf: Add bpf_link iterator

2022-05-10 11:20:45 -07:00

map_in_map.c

bpf: Allow storing unreferenced kptr in map

2022-04-25 17:31:35 -07:00

map_in_map.h

bpf: Add map_meta_equal map ops

2020-08-28 15:41:30 +02:00

map_iter.c

bpf: Introduce MEM_RDONLY flag

2021-12-18 13:27:41 -08:00

mmap_unlock_work.h

bpf: Introduce helper bpf_find_vma

2021-11-07 11:54:51 -08:00

net_namespace.c

net: Add includes masked by netdevice.h including uapi/bpf.h

2021-12-29 20:03:05 -08:00

offload.c

bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill

2020-02-17 16:53:49 +01:00

percpu_freelist.c

bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI

2020-10-06 00:04:11 +02:00

percpu_freelist.h

bpf: Use raw_spin_trylock() for pcpu_freelist_push/pop in NMI

2020-10-06 00:04:11 +02:00

prog_iter.c

bpf: Refactor bpf_iter_reg to have separate seq_info member

2020-07-25 20:16:32 -07:00

queue_stack_maps.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

reuseport_array.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

ringbuf.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

stackmap.c

bpf: Compute map_btf_id during build time

2022-04-26 11:35:21 -07:00

syscall.c

bpf: refine kernel.unprivileged_bpf_disabled behaviour

2022-05-20 19:48:29 -07:00

sysfs_btf.c

bpf: Load and verify kernel module BTFs

2020-11-10 15:25:53 -08:00

task_iter.c

bpf: Remove redundant assignment to meta.seq in __task_seq_show()

2022-04-11 21:14:34 +02:00

tnum.c

bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul

2021-06-01 13:34:15 +02:00

trampoline.c

bpf: Fix potential array overflow in bpf_trampoline_get_progs()

2022-05-11 21:24:20 -07:00

verifier.c

bpf: Add bpf_skc_to_mptcp_sock_proto

2022-05-20 15:29:00 -07:00