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Jason A. Donenfeld e33f5b5815 ksmbd: use vfs_llseek instead of dereferencing NULL 
commit 067baa9a37b32b95fdeabccde4b0cb6a2cf95f96 upstream.

By not checking whether llseek is NULL, this might jump to NULL. Also,
it doesn't check FMODE_LSEEK. Fix this by using vfs_llseek(), which
always does the right thing.

Fixes: f44158485826 ("cifsd: add file operations")
Cc: stable@vger.kernel.org
Cc: linux-cifs@vger.kernel.org
Cc: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: Hyunchul Lee <hyc.lee@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-07 17:53:23 +02:00
..
9p
9p: fix fid refcount leak in v9fs_vfs_get_link
2022-06-29 09:03:19 +02:00
adfs
…
affs
…
afs
afs: Fix dynamic root getattr
2022-06-29 09:03:25 +02:00
autofs
autofs: fix wait name hash calculation in autofs_wait()
2021-10-20 21:09:02 -04:00
befs
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
bfs
…
btrfs
btrfs: fix deadlock with fsync+fiemap+transaction commit
2022-06-29 09:03:27 +02:00
cachefiles
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
ceph
ceph: flush the mdlog for filesystem sync
2022-06-14 18:36:23 +02:00
cifs
cifs: fix reconnect on smb3 mount types
2022-06-14 18:36:25 +02:00
coda
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configfs
configfs: fix a race in configfs_{,un}register_subsystem()
2022-03-02 11:48:02 +01:00
cramfs
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crypto
fscrypt: allow 256-bit master keys with AES-256-XTS
2021-11-18 19:16:11 +01:00
debugfs
debugfs: lockdown: Allow reading debugfs files that are not world readable
2022-01-27 11:03:55 +01:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-02-01 17:27:01 +01:00
dlm
dlm: fix missing lkb refcount handling
2022-06-09 10:23:22 +02:00
ecryptfs
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
efivarfs
…
efs
…
erofs
iomap: Add done_before argument to iomap_dio_rw
2022-05-01 17:22:32 +02:00
exfat
exfat: check if cluster num is valid
2022-06-06 08:43:37 +02:00
exportfs
exportfs: support idmapped mounts
2022-06-09 10:23:32 +02:00
ext2
ext2: correct max file size computing
2022-04-08 14:23:35 +02:00
ext4
ext4: add reserved GDT blocks check
2022-06-22 14:22:05 +02:00
f2fs
f2fs: attach inline_data after setting compression
2022-06-29 09:03:27 +02:00
fat
fat: add ratelimit to fat*_ent_bread()
2022-06-09 10:22:42 +02:00
freevxfs
…
fscache
fscache: Remove an unused static variable
2021-10-04 22:13:12 +01:00
fuse
iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readable
2022-05-01 17:22:28 +02:00
gfs2
gfs2: use i_lock spin_lock for inode qadata
2022-06-09 10:22:40 +02:00
hfs
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hfsplus
…
hostfs
hostfs: support splice_write
2021-08-26 22:28:02 +02:00
hpfs
hpfs: use iomap_fiemap to implement ->fiemap
2021-07-27 11:00:36 +02:00
hugetlbfs
hugetlbfs: fix hugetlbfs_statfs() locking
2022-06-09 10:23:11 +02:00
iomap
iomap: iomap_write_failed fix
2022-06-09 10:22:55 +02:00
isofs
isofs: Fix out of bound access for corrupted isofs image
2021-11-12 15:05:50 +01:00
jbd2
jbd2: fix a potential race while discarding reserved buffers after an abort
2022-04-27 14:39:02 +02:00
jffs2
jffs2: fix memory leak in jffs2_do_fill_super
2022-06-14 18:36:10 +02:00
jfs
fs: jfs: fix possible NULL pointer dereference in dbFree()
2022-06-09 10:22:41 +02:00
kernfs
kernfs: Separate kernfs_pr_cont_buf and rename_lock.
2022-06-14 18:36:22 +02:00
ksmbd
ksmbd: use vfs_llseek instead of dereferencing NULL
2022-07-07 17:53:23 +02:00
lockd
lockd: fix failure to cleanup client locks
2022-02-05 12:38:57 +01:00
minix
minix: fix bug when opening a file with O_DIRECT
2022-04-13 20:59:10 +02:00
netfs
netfs: fix parameter of cleanup()
2021-12-29 12:28:59 +01:00
nfs
pNFS: Avoid a live lock condition in pnfs_update_layout()
2022-06-22 14:21:59 +02:00
nfs_common
nfs: Fix kerneldoc warning shown up by W=1
2021-10-04 22:02:17 +01:00
nfsd
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
nilfs2
nilfs2: fix lockdep warnings during disk space reclamation
2022-05-25 09:57:26 +02:00
nls
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notify
fsnotify: fix wrong lockdep annotations
2022-06-09 10:22:50 +02:00
ntfs
iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readable
2022-05-01 17:22:28 +02:00
ntfs3
fs/ntfs3: Fix invalid free in log_replay
2022-06-09 10:23:32 +02:00
ocfs2
ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
2022-06-09 10:23:22 +02:00
omfs
…
openpromfs
…
orangefs
orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc()
2022-01-20 09:13:13 +01:00
overlayfs
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
proc
proc: fix dentry/inode overinstantiating under /proc/${pid}/net
2022-06-09 10:23:10 +02:00
pstore
pstore: Don't use semaphores in always-atomic-context code
2022-04-08 14:23:01 +02:00
qnx4
qnx4: work around gcc false positive warning bug
2021-09-21 08:36:48 -07:00
qnx6
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quota
quota: Prevent memory allocation recursion while holding dq_lock
2022-06-22 14:21:56 +02:00
ramfs
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reiserfs
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
romfs
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smbfs_common
cifs: Fix crash on unload of cifs_arc4.ko
2021-12-14 10:57:12 +01:00
squashfs
squashfs: use bvec_virt
2021-08-16 10:50:32 -06:00
sysfs
sysfs: Allow deferred execution of iomem_get_mapping()
2021-08-06 13:05:28 +02:00
sysv
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tracefs
tracefs: Set the group ownership in apply_options() not parse_options()
2022-03-02 11:48:05 +01:00
ubifs
ubifs: rename_whiteout: correct old_dir size computing
2022-04-08 14:24:08 +02:00
udf
udf: Avoid using stale lengthOfImpUse
2022-05-15 20:18:52 +02:00
ufs
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
unicode
…
vboxsf
vboxfs: fix broken legacy mount signature checking
2021-09-27 11:26:21 -07:00
verity
fs-verity: fix signed integer overflow with i_size near S64_MAX
2021-09-22 10:56:34 -07:00
xfs
fs: port higher-level mapping helpers
2022-07-02 16:41:16 +02:00
zonefs
zonefs: fix zonefs_iomap_begin() for reads
2022-06-25 15:18:40 +02:00
aio.c
aio: Fix incorrect usage of eventfd_signal_allowed()
2021-12-14 10:57:22 +01:00
anon_inodes.c
…
attr.c
fs: account for group membership
2022-07-02 16:41:17 +02:00
bad_inode.c
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
binfmt_aout.c
binfmt: a.out: Fix bogus semicolon
2021-09-05 10:15:05 -07:00
binfmt_elf_fdpic.c
coredump: Snapshot the vmas in do_coredump
2022-04-08 14:24:17 +02:00
binfmt_elf.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
binfmt_flat.c
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
2022-06-09 10:22:26 +02:00
binfmt_misc.c
…
binfmt_script.c
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buffer.c
mm: fs: fix lru_cache_disabled race in bh_lru
2022-04-08 14:22:54 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
coredump.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
d_path.c
d_path: make 'prepend()' fill up the buffer exactly on overflow
2021-09-02 10:07:29 -07:00
dax.c
dax: fix cache flush on PMD-mapped pages
2022-06-09 10:23:09 +02:00
dcache.c
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direct-io.c
…
drop_caches.c
fs: drop_caches: fix skipping over shadow cache inodes
2021-09-03 09:58:10 -07:00
eventfd.c
eventfd: Export eventfd_wake_count to modules
2021-09-06 07:20:56 -04:00
eventpoll.c
ARM development updates for 5.15:
2021-09-09 13:25:49 -07:00
exec.c
exec: Force single empty string when argv is empty
2022-04-08 14:23:01 +02:00
fcntl.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
fhandle.c
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file_table.c
SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()
2022-05-18 10:26:57 +02:00
file.c
fs: fix fd table size alignment properly
2022-04-08 14:23:54 +02:00
filesystems.c
fs: simplify get_filesystem_list / get_all_fs_names
2021-08-23 01:25:40 -04:00
fs_context.c
vfs: fs_context: fix up param length parsing in legacy_parse_param
2022-01-20 09:13:14 +01:00
fs_parser.c
namei: Standardize callers of filename_lookup()
2021-09-07 16:07:47 -04:00
fs_pin.c
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fs_struct.c
…
fs_types.c
…
fs-writeback.c
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
2022-06-14 18:36:26 +02:00
fsopen.c
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init.c
…
inode.c
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
2022-06-14 18:36:26 +02:00
internal.h
block: simplify the block device syncing code
2022-04-27 14:38:50 +02:00
io_uring.c
io_uring: fix not locked access to fixed buf table
2022-07-02 16:41:18 +02:00
io-wq.c
io-wq: drop wqe lock before creating new worker
2021-12-22 09:32:51 +01:00
io-wq.h
io-wq: provide a way to limit max number of workers
2021-08-29 07:55:55 -06:00
ioctl.c
fs: fix an infinite loop in iomap_fiemap
2022-05-25 09:57:26 +02:00
Kconfig
4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate
2021-09-12 10:10:21 -07:00
Kconfig.binfmt
binfmt: remove support for em86 (alpha only)
2021-07-25 22:33:03 -07:00
kernel_read_file.c
vfs: check fd has read access in kernel_read_file_from_fd()
2021-10-18 20:22:03 -10:00
libfs.c
…
locks.c
Revert "memcg: enable accounting for file lock caches"
2021-09-07 11:21:48 -07:00
Makefile
4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate
2021-09-12 10:10:21 -07:00
mbcache.c
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mount.h
…
mpage.c
…
namei.c
fs: add two trivial lookup helpers
2022-06-09 10:23:32 +02:00
namespace.c
fs: support mapped mounts of mapped filesystems
2022-07-02 16:41:17 +02:00
no-block.c
…
nsfs.c
…
open.c
fs: support mapped mounts of mapped filesystems
2022-07-02 16:41:17 +02:00
pipe.c
pipe: Fix missing lock in pipe_resize_ring()
2022-06-06 08:43:37 +02:00
pnode.c
…
pnode.h
…
posix_acl.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00
proc_namespace.c
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
read_write.c
fs: clean up after mandatory file locking support removal
2021-08-24 07:52:45 -04:00
readdir.c
…
remap_range.c
fs: remove mandatory file locking support
2021-08-23 06:15:36 -04:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-29 10:58:25 +01:00
seq_file.c
seq_file: disallow extremely large seq buffer allocations
2021-07-19 17:18:48 -07:00
signalfd.c
signalfd: use wake_up_pollfree()
2021-12-14 10:57:15 +01:00
splice.c
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stack.c
…
stat.c
stat: fix inconsistency between struct stat and struct compat_stat
2022-04-27 14:38:57 +02:00
statfs.c
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super.c
vfs: make freeze_super abort when sync_filesystem returns error
2022-02-23 12:03:05 +01:00
sync.c
vfs: make sync_filesystem return errors from ->sync_fs
2022-04-27 14:38:50 +02:00
timerfd.c
timerfd: Provide timerfd_resume()
2021-08-10 17:57:22 +02:00
userfaultfd.c
userfaultfd: fix a race between writeprotect and exit_mmap()
2021-10-18 20:22:02 -10:00
utimes.c
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xattr.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00