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Askar SafinandGreg Kroah-Hartman dd21dc8d74 openat2: don't trigger automounts with RESOLVE_NO_XDEV 
commit 042a60680d upstream.

openat2 had a bug: if we pass RESOLVE_NO_XDEV, then openat2
doesn't traverse through automounts, but may still trigger them.
(See the link for full bug report with reproducer.)

This commit fixes this bug.

Link: https://lore.kernel.org/linux-fsdevel/20250817075252.4137628-1-safinaskar@zohomail.com/
Fixes: fddb5d430a ("open: introduce openat2(2) syscall")
Reviewed-by: Aleksa Sarai <cyphar@cyphar.com>
Cc: stable@vger.kernel.org
Signed-off-by: Askar Safin <safinaskar@zohomail.com>
Link: https://lore.kernel.org/20250825181233.2464822-5-safinaskar@zohomail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-19 16:30:51 +02:00
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9p
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adfs
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affs
affs: don't write overlarge OFS data block size fields
2025-04-10 14:37:37 +02:00
afs
afs: Fix potential null pointer dereference in afs_put_server
2025-10-02 13:42:53 +02:00
autofs
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befs
…
bfs
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btrfs
btrfs: avoid potential out-of-bounds in btrfs_encode_fh()
2025-10-19 16:30:48 +02:00
cachefiles
cachefiles: Fix the incorrect return value in __cachefiles_write()
2025-07-24 08:53:16 +02:00
ceph
ceph: fix possible integer overflow in ceph_zero_objects()
2025-07-06 11:00:08 +02:00
coda
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configfs
configfs: Do not override creating attribute file failure in populate_attrs()
2025-06-27 11:08:42 +01:00
cramfs
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crypto
fscrypt: Don't use problematic non-inline crypto engines
2025-08-28 16:28:40 +02:00
debugfs
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devpts
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dlm
dlm: make tcp still work in multi-link env
2025-06-04 14:41:57 +02:00
ecryptfs
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efivarfs
efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare
2025-09-04 15:30:26 +02:00
efs
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erofs
erofs: fix atomic context detection when !CONFIG_DEBUG_LOCK_ALLOC
2025-09-04 15:30:19 +02:00
exfat
exfat: add cluster chain loop check for dir
2025-08-28 16:28:28 +02:00
exportfs
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ext2
ext2: Handle fiemap on empty files to prevent EINVAL
2025-08-28 16:28:15 +02:00
ext4
ext4: fix checks for orphan inodes
2025-10-15 11:58:08 +02:00
f2fs
f2fs: fix zero-sized extent for precache extents
2025-10-15 11:58:02 +02:00
fat
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freevxfs
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fscache
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fuse
fuse: prevent overflow in copy_file_range return value
2025-09-19 16:32:04 +02:00
gfs2
gfs2: Fix GLF_INVALIDATE_IN_PROGRESS flag clearing in do_xmote
2025-10-15 11:57:48 +02:00
hfs
hfs: fix not erasing deleted b-tree node issue
2025-08-28 16:28:15 +02:00
hfsplus
hfsplus: don't use BUG_ON() in hfsplus_create_attributes_file()
2025-08-28 16:28:14 +02:00
hostfs
um: hostfs: avoid issues on inode number reuse by host
2025-04-10 14:37:34 +02:00
hpfs
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hugetlbfs
mm/hugetlb: fix folio is still mapped when deleted
2025-10-02 13:42:54 +02:00
iomap
iomap: skip unnecessary ifs_block_is_uptodate check
2025-05-02 07:51:01 +02:00
isofs
isofs: Verify inode mode when loading from disk
2025-07-24 08:53:13 +02:00
jbd2
jbd2: prevent softlockup in jbd2_log_do_checkpoint()
2025-08-28 16:28:36 +02:00
jffs2
jffs2: check jffs2_prealloc_raw_node_refs() result in few other places
2025-06-27 11:08:58 +01:00
jfs
jfs: upper bound check of tree index in dbAllocAG
2025-08-28 16:28:26 +02:00
kernfs
kernfs: Fix UAF in polling when open file is released
2025-09-19 16:32:05 +02:00
lockd
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minix
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netfs
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nfs
NFSv4.1: fix backchannel max_resp_sz verification check
2025-10-15 11:58:04 +02:00
nfs_common
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nfsd
NFSD: nfsd_unlink() clobbers non-zero status returned from fh_fill_pre_attrs()
2025-09-19 16:32:01 +02:00
nilfs2
nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/*
2025-09-25 11:00:07 +02:00
nls
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notify
fanotify: sanitize handle_type values when reporting fid
2025-08-15 12:08:52 +02:00
ntfs
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ntfs3
fs/ntfs3: Fix a resource leak bug in wnd_extend()
2025-10-19 16:30:49 +02:00
ocfs2
ocfs2: fix double free in user_cluster_connect()
2025-10-15 11:58:06 +02:00
omfs
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openpromfs
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orangefs
fs/orangefs: use snprintf() instead of sprintf()
2025-08-28 16:28:25 +02:00
overlayfs
ovl: Check for NULL d_inode() in ovl_dentry_upper()
2025-07-06 11:00:08 +02:00
proc
proc: fix type confusion in pde_set_flags()
2025-09-19 16:32:02 +02:00
pstore
pstore: Change kmsg_bytes storage size to u32
2025-06-04 14:42:11 +02:00
qnx4
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qnx6
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quota
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ramfs
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reiserfs
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romfs
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smb
cifs: Query EA $LXMOD in cifs_query_path_info() for WSL reparse points
2025-10-19 16:30:45 +02:00
squashfs
Squashfs: fix uninit-value in squashfs_get_parent
2025-10-15 11:58:07 +02:00
sysfs
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sysv
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tracefs
tracefs: Add d_delete to remove negative dentries
2025-08-28 16:28:15 +02:00
ubifs
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udf
fs: udf: fix OOB read in lengthAllocDescs handling
2025-10-15 11:58:08 +02:00
ufs
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unicode
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vboxsf
vboxsf: fix building with GCC 15
2025-03-22 12:50:41 -07:00
verity
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xfs
xfs: do not propagate ENODATA disk errors into xattr code
2025-09-04 15:30:29 +02:00
zonefs
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aio.c
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anon_inodes.c
fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass
2025-07-10 16:03:18 +02:00
attr.c
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bad_inode.c
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binfmt_elf_fdpic.c
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binfmt_elf_test.c
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binfmt_elf.c
binfmt_elf: Move brk for static PIE even if ASLR disabled
2025-05-22 14:12:12 +02:00
binfmt_flat.c
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binfmt_misc.c
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binfmt_script.c
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buffer.c
fs/buffer: fix use-after-free when call bh_read() helper
2025-08-28 16:28:44 +02:00
char_dev.c
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compat_binfmt_elf.c
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coredump.c
coredump: hand a pidfd to the usermode coredump helper
2025-06-04 14:42:24 +02:00
d_path.c
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dax.c
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dcache.c
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direct-io.c
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drop_caches.c
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eventfd.c
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eventpoll.c
eventpoll: Fix semi-unbounded recursion
2025-08-28 16:28:12 +02:00
exec.c
exec: fix the racy usage of fs_struct->in_exec
2025-04-10 14:37:44 +02:00
fcntl.c
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fhandle.c
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file_table.c
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file.c
fs: always return zero on success from replace_fd()
2025-10-19 16:30:39 +02:00
filesystems.c
fs/filesystems: Fix potential unsigned integer underflow in fs_name()
2025-06-19 15:28:43 +02:00
fs_context.c
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fs_parser.c
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fs_pin.c
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fs_struct.c
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fs_types.c
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fs-writeback.c
fs: writeback: fix use-after-free in __mark_inode_dirty()
2025-09-09 18:56:20 +02:00
fsopen.c
fscontext: do not consume log entries when returning -EMSGSIZE
2025-10-19 16:30:39 +02:00
init.c
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inode.c
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internal.h
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ioctl.c
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Kconfig
nfs: add missing selections of CONFIG_CRC32
2025-04-25 10:45:46 +02:00
Kconfig.binfmt
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kernel_read_file.c
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libfs.c
better lockdep annotations for simple_recursive_removal()
2025-08-28 16:28:15 +02:00
locks.c
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Makefile
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mbcache.c
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mnt_idmapping.c
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mount.h
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mpage.c
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namei.c
openat2: don't trigger automounts with RESOLVE_NO_XDEV
2025-10-19 16:30:51 +02:00
namespace.c
use uniform permission checks for all mount propagation changes
2025-08-28 16:28:44 +02:00
nsfs.c
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open.c
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pipe.c
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pnode.c
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pnode.h
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posix_acl.c
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proc_namespace.c
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read_write.c
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readdir.c
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remap_range.c
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select.c
hrtimer: Use and report correct timerslack values for realtime tasks
2025-03-22 12:50:37 -07:00
seq_file.c
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signalfd.c
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splice.c
splice: remove duplicate noinline from pipe_clear_nowait
2025-05-02 07:50:45 +02:00
stack.c
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stat.c
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statfs.c
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super.c
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sync.c
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sysctls.c
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timerfd.c
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userfaultfd.c
mm/userfaultfd: fix release hang over concurrent GUP
2025-04-25 10:45:31 +02:00
utimes.c
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xattr.c
fs/xattr.c: fix simple_xattr_list()
2025-06-27 11:08:57 +01:00