AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 07:50:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
bd0fe358d1
linux_dsm_epyc7002/fs
History
Kees Cook f70102cb36 proc: Track /proc/$pid/attr/ opener mm_struct 
commit 591a22c14d3f45cc38bd1931c593c221df2f1881 upstream.

Commit bfb819ea20ce ("proc: Check /proc/$pid/attr/ writes against file opener")
tried to make sure that there could not be a confusion between the opener of
a /proc/$pid/attr/ file and the writer. It used struct cred to make sure
the privileges didn't change. However, there were existing cases where a more
privileged thread was passing the opened fd to a differently privileged thread
(during container setup). Instead, use mm_struct to track whether the opener
and writer are still the same process. (This is what several other proc files
already do, though for different reasons.)

Reported-by: Christian Brauner <christian.brauner@ubuntu.com>
Reported-by: Andrea Righi <andrea.righi@canonical.com>
Tested-by: Andrea Righi <andrea.righi@canonical.com>
Fixes: bfb819ea20ce ("proc: Check /proc/$pid/attr/ writes against file opener")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-16 12:01:34 +02:00
..
9p fs: 9p: add generic splice_write file operation 2020-12-01 21:40:47 +01:00
adfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
affs fs/affs: release old buffer head on error path 2021-03-04 11:38:37 +01:00
afs afs: Fix the nlink handling of dir-over-dir rename 2021-06-03 09:00:39 +02:00
autofs autofs: harden ioctl table 2020-10-16 11:11:22 -07:00
befs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
bfs bfs: don't use WARNING: string when it's just info. 2021-01-06 14:56:52 +01:00
btrfs btrfs: fix unmountable seed device after fstrim 2021-06-10 13:39:28 +02:00
cachefiles fs/cachefiles: Remove wait_bit_key layout dependency 2021-03-30 14:32:07 +02:00
ceph ceph: don't allow access to MDS-private inodes 2021-05-22 11:40:54 +02:00
cifs SMB3: incorrect file id in requests compounded with open 2021-06-03 09:00:44 +02:00
coda
configfs configfs: fix a use-after-free in __configfs_open_file 2021-03-17 17:06:34 +01:00
cramfs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
crypto fscrypt: add fscrypt_is_nokey_name() 2020-12-26 16:02:43 +01:00
debugfs debugfs: Make debugfs_allow RO after init 2021-05-19 10:13:19 +02:00
devpts
dlm fs: dlm: flush swork on shutdown 2021-05-19 10:12:52 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 12:06:55 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-11-25 16:55:02 +01:00
efs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
erofs erofs: add unsupported inode i_format check 2021-05-11 14:47:13 +02:00
exfat exfat: fix erroneous discard when clear cluster bit 2021-05-11 14:47:36 +02:00
exportfs
ext2 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
ext4 ext4: fix accessing uninit percpu counter variable with fast_commit 2021-06-10 13:39:26 +02:00
f2fs f2fs: compress: fix to assign cc.cluster_idx correctly 2021-05-19 10:13:14 +02:00
fat [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
freevxfs
fscache
fuse cuse: prevent clone 2021-05-19 10:12:56 +02:00
gfs2 gfs2: fix scheduling while atomic bug in glocks 2021-06-10 13:39:25 +02:00
hfs fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
hfsplus hfsplus: prevent corruption in shrinking truncate 2021-05-19 10:13:10 +02:00
hostfs hostfs: fix memory handling in follow_link() 2021-04-14 08:42:06 +02:00
hpfs [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
hugetlbfs mm/hugetlb: fix F_SEAL_FUTURE_WRITE 2021-05-19 10:13:11 +02:00
iomap iomap: Fix negative assignment to unsigned sis->pages in iomap_swapfile_activate 2021-04-07 15:00:04 +02:00
isofs isofs: release buffer head before return 2021-03-04 11:38:00 +01:00
jbd2 ext4: fix debug format string warning 2021-05-19 10:13:19 +02:00
jffs2 jffs2: check the validity of dstlen in jffs2_zlib_compress() 2021-05-11 14:47:36 +02:00
jfs JFS: more checks for invalid superblock 2021-03-07 12:34:04 +01:00
kernfs kernfs: wire up ->splice_read and ->splice_write 2021-01-27 11:55:29 +01:00
lockd lockd: don't use interval-based rebinding over TCP 2020-12-30 11:53:30 +01:00
minix [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
nfs NFSv4: Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config 2021-06-03 09:00:36 +02:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-30 11:53:45 +01:00
nfsd nfsd: ensure new clients break delegations 2021-05-19 10:13:03 +02:00
nilfs2 nilfs2: make splice write available again 2021-02-13 13:55:16 +01:00
nls
notify fanotify: Fix sys_fanotify_mark() on native x86-32 2021-01-17 14:16:59 +01:00
ntfs ntfs: check for valid standard information attribute 2021-02-26 10:13:00 +01:00
ocfs2 ocfs2: fix data corruption by fallocate 2021-06-10 13:39:26 +02:00
omfs fs: omfs: use kmemdup() rather than kmalloc+memcpy 2020-09-22 23:39:45 -04:00
openpromfs
orangefs orangefs: remove unnecessary assignment to variable ret 2020-08-04 15:01:58 -04:00
overlayfs ovl: invalidate readdir cache on changes to dir with origin 2021-05-14 09:50:35 +02:00
proc proc: Track /proc/$pid/attr/ opener mm_struct 2021-06-16 12:01:34 +02:00
pstore pstore: Fix warning in pstore_kill_sb() 2021-03-25 09:04:08 +01:00
qnx4 [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
qnx6 [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
quota quota: Fix memory leak when handling corrupted quota file 2021-03-04 11:37:53 +01:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-16 11:11:22 -07:00
reiserfs reiserfs: update reiserfs_xattrs_initialized() condition 2021-04-07 15:00:10 +02:00
romfs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
squashfs squashfs: fix divide error in calculate_skip() 2021-05-19 10:13:10 +02:00
sysfs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2020-10-02 12:02:30 +02:00
sysv [PATCH] reduce boilerplate in fsid handling 2020-09-18 16:45:50 -04:00
tracefs
ubifs ubifs: Only check replay with inode type to judge if inode linked 2021-05-11 14:47:33 +02:00
udf udf: fix silent AED tagLocation corruption 2021-03-17 17:06:23 +01:00
ufs Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-24 12:26:05 -07:00
unicode unicode: Add utf8_casefold_hash 2020-09-10 14:03:31 -07:00
vboxsf Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2020-10-15 15:11:56 -07:00
verity
xfs xfs: fix return of uninitialized value in variable error 2021-05-14 09:50:34 +02:00
zonefs zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone() 2021-03-25 09:04:05 +01:00
aio.c vfs: separate __sb_start_write into blocking and non-blocking helpers 2020-11-10 16:53:07 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot 2020-10-16 11:11:21 -07:00
binfmt_elf.c fs: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
binfmt_em86.c
binfmt_flat.c binfmt_flat: revert "binfmt_flat: don't offset the data start" 2020-08-24 08:49:13 +10:00
binfmt_misc.c binfmt_misc: fix possible deadlock in bm_register_write 2021-03-17 17:06:35 +01:00
binfmt_script.c
block_dev.c block: fix a race between del_gendisk and BLKRRPART 2021-06-03 09:00:45 +02:00
buffer.c mm, memcg: rework remote charging API to support nesting 2020-10-18 09:27:09 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c coredump: fix core_pattern parse error 2020-12-06 10:19:07 -08:00
d_path.c fs: fix NULL dereference due to data race in prepend_path() 2020-10-14 14:54:45 -07:00
dax.c dax: Wake up all waiters after invalidating dax entry 2021-05-19 10:13:12 +02:00
dcache.c vfs: Use sequence counter with associated spinlock 2020-07-29 16:14:27 +02:00
dcookies.c
direct-io.c fs: direct-io: fix missing sdio->boundary 2021-04-14 08:41:58 +02:00
drop_caches.c
eventfd.c
eventpoll.c fs/epoll: restore waking from ep_done_scan() 2021-05-11 14:47:12 +02:00
exec.c exec: Transform exec_update_mutex into a rw_semaphore 2021-01-09 13:46:24 +01:00
fcntl.c fcntl: Fix potential deadlock in send_sig{io, urg}() 2021-01-06 14:56:53 +01:00
fhandle.c
file_table.c task_work: cleanup notification modes 2020-10-17 15:05:30 -06:00
file.c kernel/io_uring: cancel io_uring before task works 2021-01-30 13:55:18 +01:00
filesystems.c
fs_context.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
fs_parser.c fs_parse: mark fs_param_bad_value() as static 2020-10-13 18:38:27 -07:00
fs_pin.c
fs_struct.c vfs: Use sequence counter with associated spinlock 2020-07-29 16:14:27 +02:00
fs_types.c
fs-writeback.c fs: fix lazytime expiration handling in __writeback_single_inode() 2021-01-27 11:54:53 +01:00
fsopen.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
init.c init: add an init_dup helper 2020-08-04 21:02:38 -04:00
inode.c fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode() 2020-12-30 11:53:49 +01:00
internal.h fs: remove compat_sys_mount 2020-09-22 23:45:57 -04:00
io_uring.c io_uring: use better types for cflags 2021-06-10 13:39:23 +02:00
io-wq.c io_uring: always batch cancel in *cancel_files() 2021-02-13 13:54:56 +01:00
io-wq.h io_uring: always batch cancel in *cancel_files() 2021-02-13 13:54:56 +01:00
ioctl.c fs: remove ksys_ioctl 2020-07-31 08:16:01 +02:00
Kconfig tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha 2021-02-17 11:02:21 +01:00
Kconfig.binfmt
kernel_read_file.c fs/kernel_file_read: Add "offset" arg for partial reads 2020-10-05 13:37:04 +02:00
libfs.c libfs: fix error cast of negative value in simple_attr_write() 2020-11-22 10:48:22 -08:00
locks.c Revert "nfsd4: a client's own opens needn't prevent delegations" 2021-03-20 10:43:44 +01:00
Makefile Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
mbcache.c
mount.h
mpage.c
namei.c LOOKUP_MOUNTPOINT: we are cleaning "jumped" flag too late 2021-04-14 08:41:58 +02:00
namespace.c umount(2): move the flag validity checks first 2021-01-19 18:27:32 +01:00
no-block.c
nsfs.c
open.c openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT 2020-12-30 11:54:24 +01:00
pipe.c fs/pipe: allow sendfile() to pipe again 2021-01-27 11:55:29 +01:00
pnode.c
pnode.h mount: fix mounting of detached mounts onto targets that reside on shared mounts 2021-03-17 17:06:13 +01:00
posix_acl.c
proc_namespace.c proc mountinfo: make splice available again 2020-12-30 11:54:02 +01:00
read_write.c Refactored code for 5.10: 2020-10-23 11:33:41 -07:00
readdir.c readdir: make sure to verify directory entry for legacy interfaces too 2021-04-21 13:00:54 +02:00
remap_range.c vfs: move the remap range helpers to remap_range.c 2020-10-15 09:48:49 -07:00
select.c kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data() 2021-03-25 09:04:16 +01:00
seq_file.c fix return values of seq_read_iter() 2020-11-15 22:12:53 -05:00
signalfd.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
splice.c io_uring-5.10-2020-10-24 2020-10-24 12:40:18 -07:00
stack.c
stat.c fs: fix reporting supported extra file attributes for statx() 2021-05-11 14:47:33 +02:00
statfs.c Add a "nosymfollow" mount option. 2020-08-27 16:06:47 -04:00
super.c vfs: move __sb_{start,end}_write* to fs.h 2020-11-10 16:53:11 -08:00
sync.c
timerfd.c
userfaultfd.c mm: remove the now-unnecessary mmget_still_valid() hack 2020-10-16 11:11:22 -07:00
utimes.c fs: expose utimes_common 2020-07-31 08:16:01 +02:00
xattr.c fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr 2020-10-13 18:38:27 -07:00