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b3d83066cbebc76dbac8a5fca931f64b4c6fff34
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Chao Yu b3d83066cb f2fs: fix to avoid NULL pointer dereference in f2fs_issue_flush() 
With below two cases, it will cause NULL pointer dereference when
accessing SM_I(sbi)->fcc_info in f2fs_issue_flush().

a) If kthread_run() fails in f2fs_create_flush_cmd_control(), it will
release SM_I(sbi)->fcc_info,

- mount -o noflush_merge /dev/vda /mnt/f2fs
- mount -o remount,flush_merge /dev/vda /mnt/f2fs  -- kthread_run() fails
- dd if=/dev/zero of=/mnt/f2fs/file bs=4k count=1 conv=fsync

b) we will never allocate memory for SM_I(sbi)->fcc_info w/ below
testcase,

- mount -o ro /dev/vda /mnt/f2fs
- mount -o rw,remount /dev/vda /mnt/f2fs
- dd if=/dev/zero of=/mnt/f2fs/file bs=4k count=1 conv=fsync

In order to fix this issue, let change as below:
- fix error path handling in f2fs_create_flush_cmd_control().
- allocate SM_I(sbi)->fcc_info even if readonly is on.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2023-01-03 08:58:47 -08:00
..
9p
Merge tag '9p-for-6.2-rc1' of https://github.com/martinetd/linux
2022-12-23 11:39:18 -08:00
adfs
fs: Convert block_read_full_page() to block_read_full_folio()
2022-05-09 16:21:44 -04:00
affs
affs: move from strlcpy with unused retval to strscpy
2022-08-19 13:03:10 +02:00
afs
afs: Stop implementing ->writepage()
2022-12-22 11:40:35 +00:00
autofs
autofs: remove unused ino field inode
2022-07-17 17:31:42 -07:00
befs
befs: Convert befs_symlink_read_folio() to use a folio
2022-08-02 12:34:03 -04:00
bfs
fs: Convert block_read_full_page() to block_read_full_folio()
2022-05-09 16:21:44 -04:00
btrfs
Merge tag 'for-6.2-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2023-01-02 11:06:18 -08:00
cachefiles
fscache,cachefiles: add prepare_ondemand_read() callback
2022-12-07 10:56:29 +08:00
ceph
Merge tag 'ceph-for-6.2-rc1' of https://github.com/ceph/ceph-client
2022-12-14 10:35:47 -08:00
cifs
Merge tag '6.2-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
2022-12-21 10:40:08 -08:00
coda
coda: Convert coda_symlink_filler() to use a folio
2022-08-02 12:34:03 -04:00
configfs
configfs: fix possible memory leak in configfs_create_dir()
2022-12-02 11:11:22 +01:00
cramfs
cramfs: read_mapping_page() is synchronous
2022-08-02 12:34:02 -04:00
crypto
Merge tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux
2022-12-13 10:43:59 -08:00
debugfs
debugfs: fix error when writing negative value to atomic_t debugfs file
2022-11-30 16:13:16 -08:00
devpts
…
dlm
Treewide: Stop corrupting socket's task_frag
2022-12-19 17:28:49 -08:00
ecryptfs
ecryptfs: use stub posix acl handlers
2022-10-20 10:13:31 +02:00
efivarfs
efi: vars: prohibit reading random seed variables
2022-12-01 09:51:21 +01:00
efs
efs: Convert efs symlinks to read_folio
2022-05-09 16:21:45 -04:00
erofs
Merge tag 'erofs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
2022-12-12 20:14:04 -08:00
exfat
Merge tag 'exfat-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
2022-12-15 18:14:21 -08:00
exportfs
exportfs: use pr_debug for unreachable debug statements
2022-11-28 12:54:45 -05:00
ext2
Merge tag 'fixes_for_v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2022-12-12 20:32:50 -08:00
ext4
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
f2fs
f2fs: fix to avoid NULL pointer dereference in f2fs_issue_flush()
2023-01-03 08:58:47 -08:00
fat
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-13 19:29:45 -08:00
freevxfs
freevxfs: Convert vxfs_immed_read_folio() to use a folio
2022-08-02 12:34:03 -04:00
fscache
Merge tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-12-12 18:29:54 -08:00
fuse
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-13 19:29:45 -08:00
gfs2
Merge tag 'gfs2-v6.1-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
2022-12-17 08:18:04 -06:00
hfs
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-13 19:29:45 -08:00
hfsplus
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-13 19:29:45 -08:00
hostfs
hostfs: move from strlcpy with unused retval to strscpy
2022-09-19 22:46:25 +02:00
hpfs
hpfs: remove ->writepage
2022-12-11 18:12:18 -08:00
hugetlbfs
hugetlbfs: inode: remove unnecessary (void*) conversions
2022-11-30 15:58:56 -08:00
iomap
Merge tag 'xfs-6.2-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2022-12-14 10:11:51 -08:00
isofs
Merge tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-12 11:00:22 -07:00
jbd2
jbd2: switch jbd2_submit_inode_data() to use fs-provided hook for data writeout
2022-12-08 21:49:25 -05:00
jffs2
fs: rename current get acl method
2022-10-20 10:13:27 +02:00
jfs
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-13 19:29:45 -08:00
kernfs
kernfs: fix all kernel-doc warnings and multiple typos
2022-11-23 19:28:26 +01:00
ksmbd
Merge tag '6.2-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd
2022-12-15 09:29:19 -08:00
lockd
Merge tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
2022-12-12 20:54:39 -08:00
minix
vfs: open inside ->tmpfile()
2022-09-24 07:00:00 +02:00
netfs
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
nfs
Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2022-12-16 03:54:54 -08:00
nfs_common
…
nfsd
Merge tag 'nfsd-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
2022-12-19 09:10:33 -06:00
nilfs2
treewide: Convert del_timer*() to timer_shutdown*()
2022-12-25 13:38:09 -08:00
nls
…
notify
Merge tag 'fsnotify-for_v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2022-10-07 08:28:50 -07:00
ntfs
Merge tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-12 11:00:22 -07:00
ntfs3
fs/ntfs3: don't hold ni_lock when calling truncate_setsize()
2023-01-02 10:31:09 -08:00
ocfs2
Treewide: Stop corrupting socket's task_frag
2022-12-19 17:28:49 -08:00
omfs
omfs: remove ->writepage
2022-12-11 18:12:18 -08:00
openpromfs
fs: allocate inode by using alloc_inode_sb()
2022-03-22 15:57:03 -07:00
orangefs
Merge tag 'for-linus-6.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
2022-12-14 11:16:33 -08:00
overlayfs
Merge tag 'ovl-update-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2022-12-12 20:18:26 -08:00
proc
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2022-12-15 11:12:21 -08:00
pstore
Merge tag 'pstore-v6.2-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-12-23 11:55:54 -08:00
qnx4
fs: Convert block_read_full_page() to block_read_full_folio()
2022-05-09 16:21:44 -04:00
qnx6
fs/qnx6: delete unnecessary checks before brelse()
2022-09-11 21:55:07 -07:00
quota
ext4: fix bug_on in __es_tree_search caused by bad quota inode
2022-12-08 21:49:23 -05:00
ramfs
Merge tag 'pull-tmpfile' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-10-10 19:45:17 -07:00
reiserfs
Merge tag 'lsm-pr-20221212' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
2022-12-13 09:47:48 -08:00
romfs
romfs: Convert romfs to read_folio
2022-05-09 16:21:46 -04:00
smbfs_common
smb3: define missing create contexts
2022-10-05 01:55:27 -05:00
squashfs
Merge tag 'fs.idmapped.squashfs.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-12 20:24:51 -08:00
sysfs
kobject: kobj_type: remove default_attrs
2022-04-05 15:39:19 +02:00
sysv
fs: sysv: Fix sysv_nblocks() returns wrong value
2022-12-10 14:13:37 -05:00
tracefs
tracefs: Only clobber mode/uid/gid on remount if asked
2022-09-08 17:10:54 -04:00
ubifs
treewide: use get_random_u32_below() instead of deprecated function
2022-11-18 02:15:15 +01:00
udf
Merge tag 'fixes_for_v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2022-12-12 20:32:50 -08:00
ufs
ufs: replace ll_rw_block()
2022-09-11 20:26:07 -07:00
unicode
…
vboxsf
vboxsf: Convert vboxsf to read_folio
2022-05-09 16:21:46 -04:00
verity
fsverity: simplify fsverity_get_digest()
2022-11-29 21:07:41 -08:00
xfs
Merge tag 'xfs-6.2-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2022-12-14 10:11:51 -08:00
zonefs
zonefs: Fix active zone accounting
2022-11-25 17:01:22 +09:00
aio.c
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
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
2022-10-18 10:09:47 +02:00
bad_inode.c
fs: rename current get acl method
2022-10-20 10:13:27 +02:00
binfmt_elf_fdpic.c
binfmt: Fix error return code in load_elf_fdpic_binary()
2022-12-01 19:15:52 -08:00
binfmt_elf_test.c
…
binfmt_elf.c
Merge tag 'pull-elfcore' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-12-12 18:18:34 -08:00
binfmt_flat.c
binfmt_flat: Remove shared library support
2022-04-22 10:57:18 -07:00
binfmt_misc.c
binfmt_misc: fix shift-out-of-bounds in check_special_flags
2022-12-02 13:57:04 -08:00
binfmt_script.c
…
buffer.c
Merge tag 'mm-nonmm-stable-2022-10-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-12 11:00:22 -07:00
char_dev.c
chardev: fix error handling in cdev_device_add()
2022-12-02 17:48:59 +01:00
compat_binfmt_elf.c
…
coredump.c
Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2022-12-14 12:20:00 -08:00
d_path.c
d_path.c: typo fix...
2022-08-20 11:34:33 -04:00
dax.c
fsdax,xfs: port unshare to fsdax
2022-12-11 18:12:17 -08:00
dcache.c
Merge tag 'pull-tmpfile' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
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
2022-11-22 06:07:55 -07:00
eventpoll.c
eventpoll: add EPOLL_URING_WAKE poll wakeup flag
2022-11-21 07:45:29 -07:00
exec.c
Merge tag 'fs.vfsuid.conversion.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-12 19:20:05 -08:00
fcntl.c
keep iocb_flags() result cached in struct file
2022-06-10 16:10:23 -04:00
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
fs: use acquire ordering in __fget_light()
2022-10-31 15:30:11 -04:00
filesystems.c
…
fs_context.c
…
fs_parser.c
ext4: journal_path mount options should follow links
2022-12-01 10:46:54 -05:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
Merge tag 'for-6.2/writeback-2022-12-12' of git://git.kernel.dk/linux
2022-12-15 18:09:48 -08:00
fsopen.c
uninline may_mount() and don't opencode it in fspick(2)/fsopen(2)
2022-05-19 23:25:10 -04:00
init.c
…
inode.c
Merge tag 'fs.vfsuid.conversion.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-12 19:20:05 -08:00
internal.h
Merge tag 'fs.ovl.setgid.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-12 19:03:10 -08:00
ioctl.c
Merge tag 'vfs-5.18-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2022-04-01 19:35:56 -07:00
Kconfig
hugetlb: make hugetlb depends on SYSFS or SYSCTL
2022-09-11 20:26:10 -07:00
Kconfig.binfmt
Merge tag 'xtensa-20221010' of https://github.com/jcmvbkbc/linux-xtensa
2022-10-10 14:21:11 -07:00
kernel_read_file.c
fs/kernel_read_file: allow to read files up-to ssize_t
2022-06-16 19:58:21 -07:00
libfs.c
libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value
2022-11-30 16:13:16 -08:00
locks.c
Add process name and pid to locks warning
2022-11-30 05:08:10 -05:00
Makefile
a.out: Remove the a.out implementation
2022-09-27 07:11:02 -07:00
mbcache.c
ext4: fix deadlock due to mbcache entry corruption
2022-12-08 21:49:25 -05:00
mount.h
switch try_to_unlazy_next() to __legitimize_mnt()
2022-07-05 16:18:21 -04:00
mpage.c
Merge tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache
2022-08-03 10:35:43 -07:00
namei.c
Merge tag 'landlock-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
2022-12-13 09:14:50 -08:00
namespace.c
Merge tag 'fs.idmapped.mnt_idmap.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-12 19:30:18 -08:00
no-block.c
…
nsfs.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
open.c
Merge tag 'landlock-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
2022-12-13 09:14:50 -08:00
pipe.c
dynamic_dname(): drop unused dentry argument
2022-08-20 11:34:04 -04:00
pnode.c
pnode: terminate at peers of source
2022-12-21 14:45:25 +01:00
pnode.h
…
posix_acl.c
Merge tag 'fs.idmapped.mnt_idmap.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-12 19:30:18 -08:00
proc_namespace.c
vfs: escape hash as well
2022-06-28 13:58:05 -04:00
read_write.c
Merge tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-12-12 18:29:54 -08:00
readdir.c
Change calling conventions for filldir_t
2022-08-17 17:25:04 -04:00
remap_range.c
Merge tag 'vfs-6.2-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2022-12-13 10:26:38 -08:00
select.c
…
seq_file.c
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
signalfd.c
…
splice.c
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
stack.c
…
stat.c
fs: use type safe idmapping helpers
2022-10-26 10:02:34 +02:00
statfs.c
…
super.c
Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2022-12-12 18:38:47 -08:00
sync.c
riscv: compat: syscall: Add compat_sys_call_table implementation
2022-04-26 13:36:25 -07:00
sysctls.c
…
timerfd.c
…
userfaultfd.c
fs/userfaultfd: Fix maple tree iterator in userfaultfd_unregister()
2022-11-07 12:58:26 -08:00
utimes.c
…
xattr.c
Merge tag 'fs.xattr.simple.rework.rbtree.rwlock.v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2022-12-13 10:08:36 -08:00