torvalds/linux
torvalds/linux
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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code
2ceb71ce7d
linux/fs/proc
History
David Hildenbrand 4a5e85f4eb fs/proc/task_mmu: fix PAGE_IS_PFNZERO detection for the huge zero folio 
is_zero_pfn() does not work for the huge zero folio. Fix it by using
is_huge_zero_pmd().

This can cause the PAGEMAP_SCAN ioctl against /proc/pid/pagemap to
present pages as PAGE_IS_PRESENT rather than as PAGE_IS_PFNZERO.

Found by code inspection.

Link: https://lkml.kernel.org/r/20250617143532.2375383-1-david@redhat.com
Fixes: 52526ca7fd ("fs/proc/task_mmu: implement IOCTL to get and optionally clear info about PTEs")
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-06-25 15:55:03 -07:00
..
array.c fs/proc: do_task_stat: Fix ESP not readable during coredump 2025-01-04 10:12:18 +01:00
base.c - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
bootconfig.c fs/proc: Skip bootloader comment if no embedded kernel parameters 2024-04-09 23:36:18 +09:00
cmdline.c proc: mark /proc/cmdline as permanent 2023-02-02 22:50:02 -08:00
consoles.c proc: Add nbcon support for /proc/consoles 2024-09-04 15:56:33 +02:00
cpuinfo.c
devices.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
fd.c Pass parent directory inode and expected name to ->d_revalidate() 2025-01-27 19:25:23 -05:00
fd.h fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
generic.c proc: fix UAF in proc_get_inode() 2025-03-16 17:40:22 -07:00
inode.c proc: fix UAF in proc_get_inode() 2025-03-16 17:40:22 -07:00
internal.h fs/proc/task_mmu: remove per-page mapcount dependency for smaps/smaps_rollup (CONFIG_NO_PAGE_MAPCOUNT) 2025-03-17 22:06:47 -07:00
interrupts.c fs/procfs: Switch to irq_get_nr_irqs() 2024-10-16 21:56:59 +02:00
Kconfig virtio-mem: support CONFIG_PROC_VMCORE_DEVICE_RAM 2025-01-27 09:39:25 -05:00
kcore.c crash: Use note name macros 2025-02-10 16:56:58 -08:00
kmsg.c printk changes for 6.1 2022-10-10 11:24:19 -07:00
loadavg.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
Makefile kbuild: make -Woverride-init warnings more consistent 2024-03-31 11:32:26 +09:00
meminfo.c mm: remove NR_BOUNCE zone stat 2025-05-05 13:22:39 -06:00
namespaces.c vfs: support caching symlink lengths in inodes 2024-12-22 11:29:50 +01:00
nommu.c fs: create helper file_user_path() for user displayed mapped file path 2023-10-19 11:03:15 +02:00
page.c fs/proc/page: refactor to reduce code duplication 2025-05-11 17:48:20 -07:00
proc_net.c fs: Add kernel-doc comments to proc_create_net_data_write() 2024-03-26 09:01:18 +01:00
proc_sysctl.c Pass parent directory inode and expected name to ->d_revalidate() 2025-01-27 19:25:23 -05:00
proc_tty.c proc: delete unused <linux/uaccess.h> includes 2022-07-17 17:31:39 -07:00
root.c procfs: make freeing proc_fs_info rcu-delayed 2024-02-25 02:10:32 -05:00
self.c proc: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
softirqs.c proc/softirqs: replace seq_printf with seq_put_decimal_ull_width 2024-11-07 07:40:14 -10:00
stat.c fs/procfs: Switch to irq_get_nr_irqs() 2024-10-16 21:56:59 +02:00
task_mmu.c fs/proc/task_mmu: fix PAGE_IS_PFNZERO detection for the huge zero folio 2025-06-25 15:55:03 -07:00
task_nommu.c proc: fix the issue of proc_mem_open returning NULL 2025-05-11 17:54:05 -07:00
thread_self.c proc: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
uptime.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
util.c
version.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
vmcore.c procfs: fix a locking bug in a vmcore_add_device_dump() error path 2025-02-17 22:40:00 -08:00