kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-22 19:14:51 +00:00
Code Issues Releases Packages Activity
linux/fs/proc
History
wangzijie c35b0feb80 proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al 
[ Upstream commit ff7ec8dc1b ]

Check pde->proc_ops->proc_lseek directly may cause UAF in rmmod scenario.
It's a gap in proc_reg_open() after commit 654b33ada4ab("proc: fix UAF in
proc_get_inode()").  Followed by AI Viro's suggestion, fix it in same
manner.

Link: https://lkml.kernel.org/r/20250607021353.1127963-1-wangzijie1@honor.com
Fixes: 3f61631d47 ("take care to handle NULL ->proc_lseek()")
Signed-off-by: wangzijie <wangzijie1@honor.com>
Reviewed-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
Cc: Kirill A. Shuemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-08-15 12:05:03 +02:00
..
array.c fs/proc: do_task_stat: Fix ESP not readable during coredump 2025-02-21 13:49:39 +01:00
base.c fs/procfs: fix the comment above proc_pid_wchan() 2025-04-10 14:33:37 +02:00
bootconfig.c proc: bootconfig: Add null pointer check 2022-04-02 08:40:09 -04:00
cmdline.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
consoles.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191 2019-05-30 11:29:21 -07:00
cpuinfo.c x86/aperfmperf: Replace aperfmperf_get_khz() 2022-04-27 20:22:19 +02:00
devices.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
fd.c procfs: prevent unprivileged processes accessing fdinfo dir 2022-05-09 17:34:28 -07:00
fd.h fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
generic.c proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al 2025-08-15 12:05:03 +02:00
inode.c proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al 2025-08-15 12:05:03 +02:00
internal.h proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al 2025-08-15 12:05:03 +02:00
interrupts.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
Kconfig proc: make config PROC_CHILDREN depend on PROC_FS 2022-10-03 14:21:43 -07:00
kcore.c fs/proc/kcore.c: Clear ret value in read_kcore_iter after successful iov_iter_zero 2024-12-14 19:54:15 +01:00
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 proc: bootconfig: Add /proc/bootconfig to show boot config list 2020-01-13 13:19:39 -05:00
meminfo.c proc/meminfo: fix spacing in SecPageTables 2022-11-22 18:50:44 -08:00
namespaces.c Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
nommu.c proc: delete unused <linux/uaccess.h> includes 2022-07-17 17:31:39 -07:00
page.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
proc_net.c proc: add some (hopefully) insightful comments 2022-07-29 18:12:35 -07:00
proc_sysctl.c fix proc_sys_compare() handling of in-lookup dentries 2025-07-17 18:32:05 +02:00
proc_tty.c proc: delete unused <linux/uaccess.h> includes 2022-07-17 17:31:39 -07:00
root.c proc: add some (hopefully) insightful comments 2022-07-29 18:12:35 -07:00
self.c Revert "proc: don't allow async path resolution of /proc/self components" 2021-02-23 20:32:11 -07:00
softirqs.c proc/softirqs: replace seq_printf with seq_put_decimal_ull_width 2024-12-14 19:53:10 +01:00
stat.c fs/proc/uptime.c: Fix idle time reporting in /proc/uptime 2021-10-05 15:51:35 +02:00
task_mmu.c fs/proc/task_mmu: indicate PM_FILE for PMD-mapped file THP 2024-08-03 08:49:28 +02:00
task_nommu.c proc: nommu: fix empty /proc/<pid>/maps 2023-10-06 14:56:42 +02:00
thread_self.c Revert "proc: don't allow async path resolution of /proc/thread-self components" 2021-02-23 20:32:11 -07:00
uptime.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
util.c fs/proc/util.c: include fs/proc/internal.h for name_to_int() 2019-01-04 13:13:45 -08:00
version.c proc: mark more files as permanent 2022-10-03 14:21:45 -07:00
vmcore.c fs/proc: fix softlockup in __read_vmcore (part 2) 2025-01-23 17:17:14 +01:00