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Su Hui 93a14ab675 fs: lockd: avoid possible wrong NULL parameter 
[ Upstream commit de8d38cf44bac43e83bad28357ba84784c412752 ]

clang's static analysis warning: fs/lockd/mon.c: line 293, column 2:
Null pointer passed as 2nd argument to memory copy function.

Assuming 'hostname' is NULL and calling 'nsm_create_handle()', this will
pass NULL as 2nd argument to memory copy function 'memcpy()'. So return
NULL if 'hostname' is invalid.

Fixes: 77a3ef33e2de ("NSM: More clean up of nsm_get_handle()")
Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 10:59:48 +02:00
..
9p
9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"
2022-06-22 14:11:02 +02:00
adfs
…
affs
affs: initialize fsdata in affs_truncate()
2023-02-06 07:52:36 +01:00
afs
afs: Fix vlserver probe RTT handling
2023-06-21 15:44:12 +02:00
autofs
…
befs
…
bfs
bfs: don't use WARNING: string when it's just info.
2021-01-06 14:48:39 +01:00
btrfs
btrfs: fix BUG_ON condition in btrfs_cancel_balance
2023-08-30 16:27:15 +02:00
cachefiles
cachefiles: Handle readpage error correctly
2020-11-05 11:43:36 +01:00
ceph
ceph: defer stopping mdsc delayed_work
2023-08-11 11:54:01 +02:00
cifs
new helper: lookup_positive_unlocked()
2023-09-23 10:59:40 +02:00
coda
coda: Avoid partial allocation of sig_inputArgs
2023-03-11 16:43:56 +01:00
configfs
configfs: fix possible memory leak in configfs_create_dir()
2023-01-18 11:41:09 +01:00
cramfs
…
crypto
fscrypt: add fscrypt_symlink_getattr() for computing st_size
2021-09-12 08:56:38 +02:00
debugfs
new helper: lookup_positive_unlocked()
2023-09-23 10:59:40 +02:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-02-01 17:24:34 +01:00
dlm
fs: dlm: fix mismatch of plock results from userspace
2023-08-30 16:27:21 +02:00
ecryptfs
Revert "ecryptfs: replace BUG_ON with error handling code"
2021-05-26 12:05:19 +02:00
efivarfs
efivarfs: revert "fix memory leak in efivarfs_create()"
2020-12-02 08:49:53 +01:00
efs
…
erofs
erofs: ensure that the post-EOF tails are all zeroed
2023-09-23 10:59:36 +02:00
exportfs
…
ext2
ext2: Drop fragment support
2023-08-11 11:53:59 +02:00
ext4
ext4: fix to check return value of freeze_bdev() in ext4_shutdown()
2023-08-11 11:53:47 +02:00
f2fs
Revert "f2fs: fix potential corruption when moving a directory"
2023-07-27 08:37:26 +02:00
fat
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
freevxfs
…
fscache
fscache: Fix cookie key hashing
2021-09-22 12:26:25 +02:00
fuse
fuse: revalidate: don't invalidate if interrupted
2023-07-27 08:37:40 +02:00
gfs2
gfs2: Fix possible data races in gfs2_show_options()
2023-08-30 16:27:10 +02:00
hfs
hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
2023-03-11 16:43:59 +01:00
hfsplus
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
hostfs
hostfs: fix memory handling in follow_link()
2021-04-14 08:24:14 +02:00
hpfs
…
hugetlbfs
hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param()
2023-01-18 11:41:38 +01:00
iomap
iomap: iomap_write_failed fix
2022-06-14 18:11:36 +02:00
isofs
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
jbd2
jbd2: Fix wrongly judgement for buffer head removing while doing checkpoint
2023-08-11 11:53:43 +02:00
jffs2
jffs2: reduce stack usage in jffs2_build_xattr_subsystem()
2023-07-27 08:37:25 +02:00
jfs
jfs: validate max amount of blocks before allocation.
2023-09-23 10:59:48 +02:00
kernfs
new helper: lookup_positive_unlocked()
2023-09-23 10:59:40 +02:00
lockd
fs: lockd: avoid possible wrong NULL parameter
2023-09-23 10:59:48 +02:00
minix
minix: fix bug when opening a file with O_DIRECT
2022-04-15 14:18:35 +02:00
nfs
nfs/blocklayout: Use the passed in gfp flags
2023-09-23 10:59:48 +02:00
nfs_common
nfs_common: need lock during iterate through the list
2020-12-30 11:51:22 +01:00
nfsd
new helper: lookup_positive_unlocked()
2023-09-23 10:59:40 +02:00
nilfs2
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
2023-09-23 10:59:37 +02:00
nls
fs/nls: make load_nls() take a const parameter
2023-09-23 10:59:38 +02:00
notify
fanotify: disallow mount/sb marks on kernel internal pseudo fs
2023-07-27 08:37:26 +02:00
ntfs
ntfs: check overflow when iterating ATTR_RECORDs
2022-11-25 17:42:22 +01:00
ocfs2
fs: ocfs2: namei: check return value of ocfs2_add_entry()
2023-09-23 10:59:42 +02:00
omfs
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
openpromfs
…
orangefs
orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init()
2023-01-18 11:41:39 +01:00
overlayfs
new helper: lookup_positive_unlocked()
2023-09-23 10:59:40 +02:00
proc
mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
2023-02-22 12:50:28 +01:00
pstore
pstore/ram: Add check for kstrdup
2023-07-27 08:37:06 +02:00
qnx4
qnx4: work around gcc false positive warning bug
2021-09-30 10:09:26 +02:00
qnx6
…
quota
quota: fix dqput() to follow the guarantees dquot_srcu should provide
2023-09-23 10:59:43 +02:00
ramfs
ramfs: fix nommu mmap with gaps in the page cache
2020-10-29 09:57:53 +01:00
reiserfs
reiserfs: Check the return value from __getblk()
2023-09-23 10:59:40 +02:00
romfs
romfs: fix uninitialized memory leak in romfs_dev_read()
2020-08-26 10:40:51 +02:00
squashfs
revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
2023-02-22 12:50:39 +01:00
sysfs
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
2021-03-07 12:20:48 +01:00
sysv
fs/sysv: Null check to prevent null-ptr-deref bug
2023-08-11 11:53:59 +02:00
tracefs
tracefs: Only clobber mode/uid/gid on remount if asked
2022-09-20 12:28:00 +02:00
ubifs
treewide: Remove uninitialized_var() usage
2023-06-09 10:29:01 +02:00
udf
udf: Handle error when adding extent to a file
2023-09-23 10:59:40 +02:00
ufs
fs/ufs: avoid potential u32 multiplication overflow
2020-08-21 13:05:37 +02:00
unicode
…
verity
fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY
2023-04-05 11:16:42 +02:00
xfs
xfs: verify buffer contents when we skip log replay
2023-06-28 10:18:42 +02:00
aio.c
aio: fix mremap after fork null-deref
2023-02-22 12:50:35 +01:00
anon_inodes.c
…
attr.c
vfs: Check the truncate maximum size in inode_newsize_ok()
2022-08-25 11:17:21 +02:00
bad_inode.c
…
binfmt_aout.c
binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf
2023-01-18 11:41:46 +01:00
binfmt_elf_fdpic.c
binfmt: Fix error return code in load_elf_fdpic_binary()
2023-01-18 11:41:46 +01:00
binfmt_elf.c
elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings
2021-10-06 15:42:35 +02:00
binfmt_em86.c
…
binfmt_flat.c
binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf
2023-01-18 11:41:46 +01:00
binfmt_misc.c
binfmt_misc: fix shift-out-of-bounds in check_special_flags
2023-01-18 11:41:33 +01:00
binfmt_script.c
…
block_dev.c
block: reexpand iov_iter after read/write
2021-05-22 11:38:29 +02:00
buffer.c
mm: fs: initialize fsdata passed to write_begin/write_end interface
2022-11-25 17:42:22 +01:00
char_dev.c
chardev: fix error handling in cdev_device_add()
2023-01-18 11:41:25 +01:00
compat_binfmt_elf.c
…
compat_ioctl.c
compat_ioctl: remove /dev/random commands
2022-06-22 14:11:03 +02:00
compat.c
…
coredump.c
coredump: fix core_pattern parse error
2020-12-11 13:23:30 +01:00
d_path.c
fs: fix NULL dereference due to data race in prepend_path()
2020-10-29 09:57:45 +01:00
dax.c
dax: fix cache flush on PMD-mapped pages
2022-06-14 18:11:41 +02:00
dcache.c
fix dget_parent() fastpath race
2020-10-01 13:17:19 +02:00
dcookies.c
…
direct-io.c
fs: direct-io: fix missing sdio->boundary
2021-04-14 08:24:11 +02:00
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
eventfd.c
eventfd: prevent underflow for eventfd semaphores
2023-09-23 10:59:40 +02:00
eventpoll.c
epoll: ep_autoremove_wake_function should use list_del_init_careful
2023-06-28 10:18:35 +02:00
exec.c
exec: Force single empty string when argv is empty
2022-06-06 08:33:50 +02:00
fcntl.c
fcntl: fix potential deadlock for &fasync_struct.fa_lock
2021-09-15 09:47:28 +02:00
fhandle.c
…
file_table.c
SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()
2022-05-25 09:14:34 +02:00
file.c
fs: prevent out-of-bounds array speculation when closing a file descriptor
2023-03-17 08:32:47 +01:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 10:50:21 +02:00
fs_context.c
fs: avoid empty option when generating legacy mount string
2023-07-27 08:37:25 +02:00
fs_parser.c
…
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
writeback: fix call of incorrect macro
2023-05-17 11:35:58 +02:00
fsopen.c
…
inode.c
fs: Establish locking order for unrelated directories
2023-07-27 08:37:26 +02:00
internal.h
fs: Establish locking order for unrelated directories
2023-07-27 08:37:26 +02:00
io_uring.c
io_uring: have io_kill_timeout() honor the request references
2023-06-05 08:17:32 +02:00
ioctl.c
…
Kconfig
…
Kconfig.binfmt
…
libfs.c
libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
2023-01-18 11:40:55 +01:00
locks.c
locks: reinstate locks_delete_block optimization
2020-03-25 08:25:41 +01:00
Makefile
…
mbcache.c
mbcache: Avoid nesting of cache->c_list_lock under bit locks
2023-01-18 11:41:59 +01:00
mount.h
…
mpage.c
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
namei.c
fs: Fix error checking for d_hash_and_lookup()
2023-09-23 10:59:40 +02:00
namespace.c
fs: warn about impending deprecation of mandatory locks
2021-08-26 08:36:22 -04:00
no-block.c
…
nsfs.c
…
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-18 07:17:51 +01:00
pipe.c
pipe: increase minimum default pipe size to 2 pages
2021-08-12 13:21:02 +02:00
pnode.c
pnode: terminate at peers of source
2023-01-18 11:41:44 +01:00
pnode.h
mount: fix mounting of detached mounts onto targets that reside on shared mounts
2021-03-17 17:03:33 +01:00
posix_acl.c
…
proc_namespace.c
…
read_write.c
fs: allow deduplication of eof block into the end of the destination file
2020-02-11 04:35:23 -08:00
readdir.c
readdir: make sure to verify directory entry for legacy interfaces too
2021-04-21 12:56:16 +02:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-29 10:25:11 +01:00
seq_file.c
seq_file: disallow extremely large seq buffer allocations
2021-07-20 16:10:54 +02:00
signalfd.c
io_uring: disable polling pollfree files
2022-09-05 10:27:47 +02:00
splice.c
Revert "fs: check FMODE_LSEEK to control internal pipe splicing"
2022-10-17 17:24:32 +02:00
stack.c
…
stat.c
stat: fix inconsistency between struct stat and struct compat_stat
2022-04-27 13:50:48 +02:00
statfs.c
statfs: enforce statfs[64] structure initialization
2023-05-30 12:44:07 +01:00
super.c
fs: Protect reconfiguration of sb read-write from racing writes
2023-08-11 11:53:59 +02:00
sync.c
…
timerfd.c
…
userfaultfd.c
userfaultfd: open userfaultfds with O_RDONLY
2022-10-26 13:22:21 +02:00
utimes.c
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
xattr.c
fs: don't audit the capability check in simple_xattr_list()
2023-01-18 11:40:53 +01:00