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Dan Carpenter ccf63a3ab6 fs: NULL dereference in posix_acl_to_xattr() 
commit 47ba9734403770a4c5e685b01f0a72b835dd4fff upstream.

This patch moves the dereference of "buffer" after the check for NULL.
The only place which passes a NULL parameter is gfs2_set_acl().

Change-Id: I7ede500c05e646e4c07238d159b8f182a1fbf80d
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-23 17:32:10 +02:00
..
9p
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
adfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
affs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
afs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
autofs4
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
befs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
bfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
btrfs
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
cachefiles
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
ceph
mm: kill vma flag VM_CAN_NONLINEAR
2020-09-23 17:32:06 +02:00
cifs
mm: kill vma flag VM_CAN_NONLINEAR
2020-09-23 17:32:06 +02:00
coda
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
configfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
cramfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
crypto
fscrypt: remove broken support for detecting keyring key revocation
2019-08-06 12:26:38 +02:00
debugfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
devpts
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
dlm
…
ecryptfs
ecryptfs: don't allow mmap when the lower fs doesn't support it
2019-08-06 11:48:23 +02:00
efs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
exfat
fs: exfat: Allow disabling exfat
2019-08-08 15:28:40 +02:00
exofs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
exportfs
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
ext2
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
ext3
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
ext4
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
f2fs
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
fat
misc: fix some GCC warnings
2019-08-23 13:20:00 +02:00
freevxfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
fscache
lib/radix-tree.c: make radix_tree_node_alloc() work correctly within interrupt
2020-09-23 17:32:07 +02:00
fuse
mm: kill vma flag VM_CAN_NONLINEAR
2020-09-23 17:32:06 +02:00
gfs2
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
hfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
hfsplus
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
hostfs
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
hpfs
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
hppfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
hugetlbfs
mm: larger stack guard gap, between vmas
2019-08-06 12:26:29 +02:00
isofs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
jbd
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
jbd2
jbd2: don't mark block as modified if the handle is out of credits
2019-08-09 11:42:07 +02:00
jffs2
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
jfs
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
lockd
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
logfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
minix
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
ncpfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
nfs
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
nfs_common
…
nfsd
userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr
2020-09-23 17:32:08 +02:00
nilfs2
mm: kill vma flag VM_CAN_NONLINEAR
2020-09-23 17:32:06 +02:00
nls
…
notify
vfs: Add permission2 for filesystems with per mount permissions
2019-08-06 10:44:34 +02:00
ntfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
ocfs2
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
omfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
openpromfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
proc
proc: Export androidboot.mode=charger if needed
2019-10-12 17:00:56 +02:00
pstore
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
qnx4
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
qnx6
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
quota
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
ramfs
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
reiserfs
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
romfs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
scfs
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
sdcardfs
mm: kill vma flag VM_CAN_NONLINEAR
2020-09-23 17:32:06 +02:00
sdfat
Include uidgid.h in same header files as in newer kernels
2020-09-23 17:28:13 +02:00
squashfs
…
sysfs
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
sysv
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
ubifs
mm: kill vma flag VM_CAN_NONLINEAR
2020-09-23 17:32:06 +02:00
udf
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
ufs
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
xfs
fs: make posix_acl_create more useful
2020-09-23 17:32:09 +02:00
yaffs2
…
aio.c
BACKPORT: aio: mark AIO pseudo-fs noexec
2019-08-06 11:48:19 +02:00
anon_inodes.c
…
attr.c
vfs: Add setattr2 for filesystems with per mount permissions
2019-08-06 10:44:35 +02:00
bad_inode.c
mm/fs: remove truncate_range
2020-09-23 17:29:09 +02:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
binfmt_em86.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
binfmt_flat.c
…
binfmt_misc.c
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
binfmt_script.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
binfmt_som.c
…
bio-integrity.c
…
bio.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
block_dev.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
buffer.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
compat.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
dcache.c
constify d_lookup() arguments
2019-08-06 10:44:47 +02:00
dcookies.c
…
direct-io.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
drop_caches.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
eventfd.c
…
eventpoll.c
PM: Rename CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND
2019-08-08 15:09:54 +02:00
exec.c
exec: Limit arg stack to at most 75% of _STK_LIM
2019-08-09 11:42:02 +02:00
fcntl.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
fhandle.c
vfs: read file_handle only once in handle_to_path
2015-07-21 01:37:10 -07:00
fifo.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
file_table.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
file.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
filesystems.c
fs: Limit sys_mount to only request filesystem modules.
2019-08-06 10:44:59 +02:00
fs_struct.c
sdcardfs: override umask on mkdir and create
2019-08-06 10:44:26 +02:00
fs-writeback.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
inode.c
Fix up non-directory creation in SGID directories
2019-08-09 11:48:10 +02:00
internal.h
vfs: Allow filesystems to access their private mount data
2019-08-06 10:44:34 +02:00
ioctl.c
…
ioprio.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
Kconfig
fs: remove generic_acl
2020-09-23 17:32:10 +02:00
Kconfig.binfmt
…
libfs.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
locks.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
Makefile
fs: remove generic_acl
2020-09-23 17:32:10 +02:00
mbcache.c
…
mount.h
Merge remote-tracking branch 'google-common/deprecated/android-3.4' into lineage-16.0
2019-08-06 11:41:21 +02:00
mpage.c
…
namei.c
fs: add get_acl helper
2020-09-23 17:32:09 +02:00
namespace.c
ANDROID: mnt: Fix freeing of mount data
2019-08-08 12:19:53 +02:00
no-block.c
…
open.c
splice: introduce FMODE_SPLICE_READ and FMODE_SPLICE_WRITE
2019-08-06 12:24:24 +02:00
pipe.c
Revert "pipe: iovec: Fix memory corruption when retrying atomic copy as non-atomic"
2019-10-05 13:41:29 +02:00
pnode.c
ANDROID: mnt: Fix next_descendent
2019-08-06 10:45:24 +02:00
pnode.h
Merge remote-tracking branch 'google-common/deprecated/android-3.4' into lineage-16.0
2019-08-06 11:41:21 +02:00
posix_acl.c
fs: NULL dereference in posix_acl_to_xattr()
2020-09-23 17:32:10 +02:00
proc_namespace.c
vfs: Allow filesystems to access their private mount data
2019-08-06 10:44:34 +02:00
read_write.c
…
read_write.h
…
readdir.c
kernel: Only expose su when daemon is running
2019-08-05 09:12:33 +02:00
select.c
Merge remote-tracking branch 'google-common/deprecated/android-3.4' into lineage-16.0
2019-08-06 11:41:21 +02:00
seq_file.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
signalfd.c
…
splice.c
splice: introduce FMODE_SPLICE_READ and FMODE_SPLICE_WRITE
2019-08-06 12:24:24 +02:00
stack.c
…
stat.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
statfs.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
super.c
vfs: Allow filesystems to access their private mount data
2019-08-06 10:44:34 +02:00
sync.c
…
timerfd.c
timerfd: add alarm timers
2019-08-06 12:31:34 +02:00
utimes.c
vfs: Add setattr2 for filesystems with per mount permissions
2019-08-06 10:44:35 +02:00
xattr.c
fs, xattr: fix bug when removing a name not in xattr list
2020-09-23 17:32:08 +02:00