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Christian Brauner ddca03d97d fs: drop peer group ids under namespace lock 
commit cb2239c198ad9fbd5aced22cf93e45562da781eb upstream.

When cleaning up peer group ids in the failure path we need to make sure
to hold on to the namespace lock. Otherwise another thread might just
turn the mount from a shared into a non-shared mount concurrently.

Link: https://lore.kernel.org/lkml/00000000000088694505f8132d77@google.com
Fixes: 2a1867219c7b ("fs: add mount_setattr()")
Reported-by: syzbot+8ac3859139c685c4f597@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org # 5.12+
Message-Id: <20230330-vfs-mount_setattr-propagation-fix-v1-1-37548d91533b@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-13 16:55:33 +02:00
..
9p
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
adfs
…
affs
affs: initialize fsdata in affs_truncate()
2023-02-01 08:34:08 +01:00
afs
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
autofs
…
befs
…
bfs
…
btrfs
btrfs: scan device in non-exclusive mode
2023-04-06 12:10:51 +02:00
cachefiles
cachefiles: use vfs_tmpfile_open() helper
2022-09-24 07:00:00 +02:00
ceph
ceph: update the time stamps and try to drop the suid/sgid
2023-03-10 09:34:25 +01:00
cifs
cifs: sanitize paths in cifs_update_super_prepath.
2023-04-13 16:55:32 +02:00
coda
coda: Avoid partial allocation of sig_inputArgs
2023-03-10 09:33:52 +01:00
configfs
configfs: fix possible memory leak in configfs_create_dir()
2022-12-31 13:32:22 +01:00
cramfs
fs/cramfs/inode.c: initialize file_ra_state
2023-03-10 09:34:09 +01:00
crypto
fscrypt: fix keyring memory leak on mount failure
2022-10-19 20:54:43 -07:00
debugfs
debugfs: fix error when writing negative value to atomic_t debugfs file
2022-12-31 13:31:58 +01:00
devpts
…
dlm
fs: dlm: fix race setting stop tx flag
2023-03-17 08:50:19 +01:00
ecryptfs
whack-a-mole: constifying struct path *
2022-10-06 17:31:02 -07:00
efivarfs
efi: efivars: Fix variable writes without query_variable_store()
2022-10-21 11:09:40 +02:00
efs
…
erofs
erofs: Revert "erofs: fix kvcalloc() misuse with __GFP_NOFAIL"
2023-03-17 08:50:28 +01:00
exfat
exfat: fix inode->i_blocks for non-512 byte sector size device
2023-03-10 09:34:08 +01:00
exportfs
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
ext2
ext2: unbugger ext2_empty_dir()
2023-01-07 11:11:40 +01:00
ext4
ext4: fix possible double unlock when moving a directory
2023-03-22 13:33:55 +01:00
f2fs
f2fs: synchronize atomic write aborts
2023-03-11 13:55:23 +01:00
fat
treewide: use get_random_u32() when possible
2022-10-11 17:42:58 -06:00
freevxfs
…
fscache
fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()
2023-02-22 12:59:43 +01:00
fuse
fuse: add inode/permission checks to fileattr_get/fileattr_set
2023-03-10 09:34:24 +01:00
gfs2
gfs2: Improve gfs2_make_fs_rw error handling
2023-03-10 09:33:59 +01:00
hfs
hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
2023-03-10 09:34:07 +01:00
hfsplus
fs: hfsplus: fix UAF issue in hfsplus_put_super
2023-03-10 09:34:07 +01:00
hostfs
hostfs: move from strlcpy with unused retval to strscpy
2022-09-19 22:46:25 +02:00
hpfs
…
hugetlbfs
hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param()
2022-12-31 13:33:05 +01:00
iomap
iomap: add a tracepoint for mappings returned by map_blocks
2022-10-02 11:42:19 -07:00
isofs
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
jbd2
jbd2: fix data missing when reusing bh which is ready to be checkpointed
2023-03-10 09:34:20 +01:00
jffs2
jffs2: correct logic when creating a hole in jffs2_write_begin
2023-03-22 13:33:53 +01:00
jfs
fs/jfs: fix shift exponent db_agl2size negative
2023-03-11 13:55:16 +01:00
kernfs
kernfs: Fix spurious lockdep warning in kernfs_find_and_get_node_by_id()
2022-11-10 19:03:42 +01:00
ksmbd
ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
2023-04-13 16:55:29 +02:00
lockd
lockd: set file_lock start and end when decoding nlm4 testargs
2023-03-30 12:49:23 +02:00
minix
vfs: open inside ->tmpfile()
2022-09-24 07:00:00 +02:00
netfs
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
nfs
NFSv4: Fix hangs when recovering open state after a server reboot
2023-04-06 12:10:54 +02:00
nfs_common
…
nfsd
NFSD: callback request does not use correct credential for AUTH_SYS
2023-04-13 16:55:23 +02:00
nilfs2
nilfs2: fix sysfs interface lifetime
2023-04-13 16:55:28 +02:00
nls
…
notify
Merge tag 'fsnotify-for_v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2022-10-07 08:28:50 -07:00
ntfs
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
ntfs3
fs/ntfs3: Validate attribute data and valid sizes
2023-02-09 11:28:26 +01:00
ocfs2
ocfs2: fix data corruption after failed write
2023-03-22 13:34:02 +01:00
omfs
…
openpromfs
…
orangefs
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
overlayfs
ovl: Use "buf" flexible array for memcpy() destination
2023-02-09 11:28:26 +01:00
proc
mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
2023-02-09 11:28:20 +01:00
pstore
pstore/zone: Use GFP_ATOMIC to allocate zone buffer
2023-01-04 11:28:59 +01:00
qnx4
…
qnx6
fs/qnx6: delete unnecessary checks before brelse()
2022-09-11 21:55:07 -07:00
quota
ext4: fix bug_on in __es_tree_search caused by bad quota inode
2023-01-07 11:11:59 +01:00
ramfs
tmpfile API change
2022-10-10 19:45:17 -07:00
reiserfs
reiserfs: Add missing calls to reiserfs_security_free()
2022-12-31 13:33:10 +01:00
romfs
…
smbfs_common
smb3: define missing create contexts
2022-10-05 01:55:27 -05:00
squashfs
revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
2023-02-22 12:59:50 +01:00
sysfs
…
sysv
fs: sysv: Fix sysv_nblocks() returns wrong value
2022-12-31 13:32:00 +01:00
tracefs
tracefs: Only clobber mode/uid/gid on remount if asked
2022-09-08 17:10:54 -04:00
ubifs
ubifs: ubifs_releasepage: Remove ubifs_assert(0) to valid this process
2023-03-11 13:55:21 +01:00
udf
udf: Fix off-by-one error when discarding preallocation
2023-03-17 08:50:19 +01:00
ufs
ufs: replace ll_rw_block()
2022-09-11 20:26:07 -07:00
unicode
…
vboxsf
…
verity
fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY
2023-04-06 12:10:34 +02:00
xfs
xfs: rename XFS_REFC_COW_START to _COWFLAG
2022-10-31 08:58:22 -07:00
zonefs
zonefs: Always invalidate last cached page on append write
2023-04-06 12:10:52 +02:00
aio.c
aio: fix mremap after fork null-deref
2023-02-22 12:59:46 +01:00
anon_inodes.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
attr.c
attr: use consistent sgid stripping checks
2023-03-03 11:52:25 +01:00
bad_inode.c
vfs: open inside ->tmpfile()
2022-09-24 07:00:00 +02:00
binfmt_elf_fdpic.c
elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
2023-01-18 11:58:12 +01:00
binfmt_elf_test.c
…
binfmt_elf.c
elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
2023-01-18 11:58:12 +01:00
binfmt_flat.c
…
binfmt_misc.c
binfmt_misc: fix shift-out-of-bounds in check_special_flags
2022-12-31 13:32:57 +01:00
binfmt_script.c
…
buffer.c
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
char_dev.c
chardev: fix error handling in cdev_device_add()
2022-12-31 13:32:41 +01:00
compat_binfmt_elf.c
…
coredump.c
coredump: Move dump_emit_page() to kill unused warning
2023-02-22 12:59:50 +01:00
d_path.c
d_path.c: typo fix...
2022-08-20 11:34:33 -04:00
dax.c
Merge branch 'for-6.0/dax' into libnvdimm-fixes
2022-09-24 18:14:12 -07:00
dcache.c
tmpfile API change
2022-10-10 19:45:17 -07:00
direct-io.c
block: remove PSI accounting from the bio layer
2022-09-20 08:24:38 -06:00
drop_caches.c
…
eventfd.c
eventfd: provide a eventfd_signal_mask() helper
2023-01-04 11:28:48 +01:00
eventpoll.c
eventpoll: add EPOLL_URING_WAKE poll wakeup flag
2023-01-04 11:28:47 +01:00
exec.c
23 hotfixes.
2022-10-29 17:49:33 -07:00
fcntl.c
…
fhandle.c
do_sys_name_to_handle(): constify path
2022-09-01 17:36:39 -04:00
file_table.c
locks: fix TOCTOU race when granting write lease
2022-08-16 10:59:54 -04:00
file.c
fs: prevent out-of-bounds array speculation when closing a file descriptor
2023-03-17 08:50:13 +01:00
filesystems.c
…
fs_context.c
…
fs_parser.c
ext4: journal_path mount options should follow links
2023-01-07 11:11:59 +01:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
fs: do not update freeing inode i_io_list
2022-11-22 17:00:00 -05:00
fsopen.c
…
init.c
…
inode.c
attr: use consistent sgid stripping checks
2023-03-03 11:52:25 +01:00
internal.h
attr: use consistent sgid stripping checks
2023-03-03 11:52:25 +01:00
ioctl.c
…
Kconfig
hugetlb: make hugetlb depends on SYSFS or SYSCTL
2022-09-11 20:26:10 -07:00
Kconfig.binfmt
Xtensa updates for v6.1
2022-10-10 14:21:11 -07:00
kernel_read_file.c
…
libfs.c
libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
2022-12-31 13:31:58 +01:00
locks.c
filelocks: use mount idmapping for setlease permission check
2023-03-17 08:50:32 +01:00
Makefile
a.out: Remove the a.out implementation
2022-09-27 07:11:02 -07:00
mbcache.c
ext4: fix deadlock due to mbcache entry corruption
2023-01-07 11:12:02 +01:00
mount.h
…
mpage.c
Folio changes for 6.0
2022-08-03 10:35:43 -07:00
namei.c
vfs: vfs_tmpfile: ensure O_EXCL flag is enforced
2022-11-19 02:22:11 -05:00
namespace.c
fs: drop peer group ids under namespace lock
2023-04-13 16:55:33 +02:00
no-block.c
…
nsfs.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
open.c
fs: Use CHECK_DATA_CORRUPTION() when kernel bugs are detected
2023-03-10 09:33:46 +01:00
pipe.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
pnode.c
pnode: terminate at peers of source
2023-01-04 11:29:01 +01:00
pnode.h
…
posix_acl.c
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
proc_namespace.c
…
read_write.c
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
readdir.c
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
remap_range.c
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
2022-08-05 16:32:45 -07:00
select.c
…
seq_file.c
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
signalfd.c
…
splice.c
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
stack.c
…
stat.c
vfs: support STATX_DIOALIGN on block devices
2022-09-11 19:47:12 -05:00
statfs.c
…
super.c
fscrypt: destroy keyring after security_sb_delete()
2023-03-30 12:49:23 +02:00
sync.c
…
sysctls.c
…
timerfd.c
…
userfaultfd.c
mm/userfaultfd: enable writenotify while userfaultfd-wp is enabled for a VMA
2023-01-24 07:24:36 +01:00
utimes.c
…
xattr.c
fs: don't audit the capability check in simple_xattr_list()
2022-12-31 13:31:55 +01:00