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Prince Kumar Maurya 1416eebaad fs/sysv: Null check to prevent null-ptr-deref bug 
commit ea2b62f305893992156a798f665847e0663c9f41 upstream.

sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on
that leads to the null-ptr-deref bug.

Reported-by: syzbot+aad58150cbc64ba41bdc@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=aad58150cbc64ba41bdc
Signed-off-by: Prince Kumar Maurya <princekumarmaurya06@gmail.com>
Message-Id: <20230531013141.19487-1-princekumarmaurya06@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-11 12:08:23 +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
afs: Fix accidental truncation when storing data
2023-07-19 16:22:06 +02:00
autofs
…
befs
…
bfs
…
btrfs
btrfs: check for commit error at btrfs_attach_transaction_barrier()
2023-08-03 10:24:13 +02:00
cachefiles
cachefiles: use vfs_tmpfile_open() helper
2022-09-24 07:00:00 +02:00
ceph
ceph: defer stopping mdsc delayed_work
2023-08-11 12:08:19 +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
blk-crypto: add a blk_crypto_config_supported_natively helper
2023-05-11 23:03:00 +09:00
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 mismatch of plock results from userspace
2023-07-23 13:49:38 +02:00
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: fix wrong primary bvec selection on deduplicated extents
2023-08-11 12:08:11 +02:00
exfat
exfat: release s_lock before calling dir_emit()
2023-08-11 12:08:20 +02:00
exportfs
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
ext2
ext2/dax: Fix ext2_setsize when len is page aligned
2023-07-23 13:49:34 +02:00
ext4
ext4: correct inline offset when handling xattrs in inode body
2023-07-27 08:50:31 +02:00
f2fs
f2fs: fix deadlock in i_xattr_sem and inode page lock
2023-07-23 13:49:29 +02:00
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: ioctl: translate ENOSYS in outarg
2023-07-27 08:50:25 +02:00
gfs2
gfs2: Fix duplicate should_fault_in_pages() call
2023-07-19 16:21:54 +02:00
hfs
hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
2023-03-10 09:34:07 +01:00
hfsplus
fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode()
2023-05-24 17:32:34 +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 wrongly judgement for buffer head removing while doing checkpoint
2023-08-03 10:23:47 +02:00
jffs2
jffs2: reduce stack usage in jffs2_build_xattr_subsystem()
2023-07-19 16:22:11 +02:00
jfs
FS: JFS: Check for read-only mounted filesystem in txBegin
2023-07-27 08:50:33 +02:00
kernfs
kernfs: fix missing kernfs_idr_lock to remove an ID from the IDR
2023-07-19 16:21:53 +02:00
lockd
lockd: drop inappropriate svc_get() from locked_get()
2023-07-19 16:20:56 +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
NFSv4.1: freeze the session table upon receiving NFS4ERR_BADSESSION
2023-07-19 16:21:43 +02:00
nfs_common
…
nfsd
nfsd: Remove incorrect check in nfsd4_validate_stateid
2023-08-03 10:24:13 +02:00
nilfs2
nilfs2: prevent general protection fault in nilfs_clear_dirty_page()
2023-06-28 11:12:27 +02:00
nls
…
notify
fanotify: disallow mount/sb marks on kernel internal pseudo fs
2023-07-19 16:22:05 +02:00
ntfs
- hfs and hfsplus kmap API modernization from Fabio Francesco
2022-10-12 11:00:22 -07:00
ntfs3
fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list()
2023-08-11 12:08:23 +02:00
ocfs2
ocfs2: Fix use of slab data with sendpage
2023-07-19 16:21:13 +02:00
omfs
…
openpromfs
…
orangefs
use less confusing names for iov_iter direction initializers
2023-02-09 11:28:04 +01:00
overlayfs
ovl: fix null pointer dereference in ovl_permission()
2023-08-03 10:23:47 +02:00
proc
proc/vmcore: fix signedness bug in read_from_oldmem()
2023-08-03 10:24:14 +02:00
pstore
pstore/ram: Add check for kstrdup
2023-07-19 16:21:03 +02:00
qnx4
…
qnx6
fs/qnx6: delete unnecessary checks before brelse()
2022-09-11 21:55:07 -07:00
quota
quota: fix warning in dqgrab()
2023-07-27 08:50:32 +02:00
ramfs
shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs
2023-07-19 16:22:11 +02:00
reiserfs
reiserfs: Add security prefix to xattr name in reiserfs_security_write()
2023-05-11 23:03:02 +09:00
romfs
…
smb
smb3: do not set NTLMSSP_VERSION flag for negotiate not auth request
2023-08-03 10:24:04 +02:00
squashfs
revert "squashfs: harden sanity check in squashfs_read_xattr_id_table"
2023-02-22 12:59:50 +01:00
sysfs
…
sysv
fs/sysv: Null check to prevent null-ptr-deref bug
2023-08-11 12:08:23 +02:00
tracefs
tracefs: Only clobber mode/uid/gid on remount if asked
2022-09-08 17:10:54 -04:00
ubifs
ubifs: Fix memory leak in do_rename
2023-05-11 23:03:05 +09:00
udf
udf: Fix uninitialized array access for some pathnames
2023-07-27 08:50:32 +02:00
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: fix xfs_inodegc_stop racing with mod_delayed_work
2023-07-19 16:22:15 +02:00
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
mm: always expand the stack with the mmap write lock held
2023-07-01 13:16:25 +02:00
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
epoll: ep_autoremove_wake_function should use list_del_init_careful
2023-06-21 16:00:54 +02:00
exec.c
mm: always expand the stack with the mmap write lock held
2023-07-01 13:16:25 +02:00
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
file: reinstate f_pos locking optimization for regular files
2023-08-11 12:08:23 +02:00
filesystems.c
…
fs_context.c
fs: avoid empty option when generating legacy mount string
2023-07-19 16:22:11 +02:00
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
writeback: fix call of incorrect macro
2023-05-17 11:53:33 +02:00
fsopen.c
…
init.c
…
inode.c
fs: Establish locking order for unrelated directories
2023-07-19 16:22:12 +02:00
internal.h
fs: Establish locking order for unrelated directories
2023-07-19 16:22:12 +02:00
ioctl.c
…
Kconfig
smb: move client and server files to common directory fs/smb
2023-06-28 11:12:40 +02:00
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
smb: move client and server files to common directory fs/smb
2023-06-28 11:12:40 +02:00
mbcache.c
ext4: fix deadlock due to mbcache entry corruption
2023-01-07 11:12:02 +01:00
mount.h
…
mpage.c
…
namei.c
fs: no need to check source
2023-07-19 16:22:15 +02:00
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
open: make RESOLVE_CACHED correctly test for O_TMPFILE
2023-08-11 12:08:22 +02:00
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
…
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
statfs: enforce statfs[64] structure initialization
2023-05-24 17:32:51 +01:00
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
Revert "userfaultfd: don't fail on unrecognized features"
2023-04-26 14:28:37 +02:00
utimes.c
…
xattr.c
fs: don't audit the capability check in simple_xattr_list()
2022-12-31 13:31:55 +01:00