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OGAWA Hirofumi 9582864186 fat: don't allow to mount if the FAT length == 0 
commit b1b65750b8 upstream.

If FAT length == 0, the image doesn't have any data. And it can be the
cause of overlapping the root dir and FAT entries.

Also Windows treats it as invalid format.

Reported-by: syzbot+6f1624f937d9d6911e2d@syzkaller.appspotmail.com
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Link: http://lkml.kernel.org/r/87r1wz8mrd.fsf@mail.parknet.co.jp
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-22 09:05:08 +02:00
..
9p
9p: avoid attaching writeback_fid on mmap with type PRIVATE
2019-10-11 18:21:13 +02:00
adfs
fs/adfs: super: fix use-after-free bug
2019-08-06 19:06:49 +02:00
affs
affs: fix a memory leak in affs_remount
2020-01-27 14:51:21 +01:00
afs
afs: Fix some tracing details
2020-04-02 15:28:19 +02:00
autofs
autofs: fix a leak in autofs_expire_indirect()
2019-12-13 08:51:01 +01:00
befs
…
bfs
…
btrfs
btrfs: tree-checker: Check level for leaves and nodes
2020-06-22 09:05:01 +02:00
cachefiles
cachefiles: Fix race between read_waiter and read_copier involving op->to_do
2020-06-03 08:19:29 +02:00
ceph
ceph: fix double unlock in handle_cap_export()
2020-05-27 17:37:34 +02:00
cifs
cifs: Fix null pointer check in cifs_read
2020-06-03 08:19:30 +02:00
coda
coda: add error handling for fget
2019-08-06 19:06:51 +02:00
configfs
configfs: fix config_item refcnt leak in configfs_rmdir()
2020-05-27 17:37:32 +02:00
cramfs
…
crypto
fscrypt: clean up some BUG_ON()s in block encryption/decryption
2019-07-26 09:14:02 +02:00
debugfs
…
devpts
…
dlm
dlm: fix invalid cluster name warning
2019-12-13 08:52:23 +01:00
ecryptfs
ecryptfs: replace BUG_ON with error handling code
2020-02-28 16:38:59 +01:00
efivarfs
…
efs
…
exofs
exofs_mount(): fix leaks on failure exits
2019-12-05 09:20:32 +01:00
exportfs
exportfs: fix 'passing zero to ERR_PTR()' warning
2020-01-27 14:50:02 +01:00
ext2
ext2: fix debug reference to ext2_xattr_cache
2020-04-23 10:30:21 +02:00
ext4
ext4: check for non-zero journal inum in ext4_calculate_overhead
2020-05-02 17:26:00 +02:00
f2fs
f2fs: fix to avoid memory leakage in f2fs_listxattr
2020-04-29 16:31:17 +02:00
fat
fat: don't allow to mount if the FAT length == 0
2020-06-22 09:05:08 +02:00
freevxfs
…
fscache
…
fuse
fuse: verify attributes
2019-12-13 08:52:36 +01:00
gfs2
gfs2: move privileged user check to gfs2_quota_lock_check
2020-06-03 08:19:28 +02:00
hfs
fs/hfs/extent.c: fix array out of bounds read of array extent
2019-12-01 09:17:10 +01:00
hfsplus
hfsplus: fix crash and filesystem corruption when deleting files
2020-04-17 10:48:52 +02:00
hostfs
…
hpfs
…
hugetlbfs
…
isofs
…
jbd2
jbd2: improve comments about freeing data buffers whose page mapping is NULL
2020-04-21 09:03:06 +02:00
jffs2
…
jfs
jfs: fix bogus variable self-initialization
2020-01-27 14:50:33 +01:00
kernfs
kernfs: fix ino wrap-around detection
2019-12-13 08:52:43 +01:00
lockd
lockd: fix decoding of TEST results
2019-12-13 08:51:59 +01:00
minix
…
nfs
NFSv4: Fix fscache cookie aux_data to ensure change_attr is included
2020-05-20 08:18:43 +02:00
nfs_common
…
nfsd
nfsd: memory corruption in nfsd4_lock()
2020-05-02 17:25:50 +02:00
nilfs2
nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
2020-06-22 09:05:03 +02:00
nls
…
notify
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
ntfs
…
ocfs2
ocfs2: no need try to truncate file beyond i_size
2020-04-17 10:48:51 +02:00
omfs
…
openpromfs
…
orangefs
help_next should increase position index
2020-02-24 08:34:53 +01:00
overlayfs
ovl: initialize error in ovl_copy_xattr
2020-06-22 09:05:06 +02:00
proc
proc: Use new_inode not new_inode_pseudo
2020-06-22 09:05:06 +02:00
pstore
pstore: pstore_ftrace_seq_next should increase position index
2020-04-17 10:48:47 +02:00
qnx4
…
qnx6
…
quota
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
ramfs
…
reiserfs
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
2020-02-24 08:34:52 +01:00
romfs
…
squashfs
…
sysfs
…
sysv
…
tracefs
…
ubifs
ubifs: remove broken lazytime support
2020-05-27 17:37:30 +02:00
udf
udf: Fix free space reporting for metadata and virtual partitions
2020-02-24 08:34:45 +01:00
ufs
…
xfs
xfs: fix partially uninitialized structure in xfs_reflink_remap_extent
2020-05-02 17:25:55 +02:00
aio.c
aio: fix async fsync creds
2020-06-22 09:05:01 +02:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
2020-06-03 08:19:41 +02:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make load_flat_shared_library() work
2019-07-03 13:14:44 +02:00
binfmt_misc.c
…
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2019-11-06 13:05:37 +01:00
block_dev.c
bdev: Refresh bdev size for disks without partitioning
2020-01-09 10:19:07 +01:00
buffer.c
ext4: use non-movable memory for superblock readahead
2020-04-23 10:30:12 +02:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-14 20:06:57 +01:00
compat_binfmt_elf.c
…
compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:19:07 +01:00
compat.c
…
coredump.c
coredump: fix crash when umh is disabled
2020-05-14 07:57:21 +02:00
d_path.c
…
dax.c
dax: pass NOWAIT flag to iomap_apply
2020-03-05 16:42:12 +01:00
dcache.c
…
dcookies.c
…
direct-io.c
…
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:17:20 +01:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:34:08 -08:00
eventpoll.c
…
exec.c
exec: Move would_dump into flush_old_exec
2020-05-20 08:18:50 +02:00
fcntl.c
…
fhandle.c
…
file_table.c
…
file.c
fix multiplication overflow in copy_fdtable()
2020-05-27 17:37:29 +02:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 10:48:51 +02:00
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
cgroup, blkcg: Prepare some symbols for module and !CONFIG_CGROUP usages
2020-06-22 09:05:03 +02:00
inode.c
futex: Fix inode life-time issue
2020-03-25 08:06:14 +01:00
internal.h
…
ioctl.c
…
iomap.c
iomap: partially revert 4721a60109 (simulated directio short read on EFAULT)
2019-12-13 08:52:56 +01:00
Kconfig
…
Kconfig.binfmt
…
libfs.c
libfs: fix infoleak in simple_attr_read()
2020-04-02 15:28:21 +02:00
locks.c
locks: print unsigned ino in /proc/locks
2020-01-09 10:19:00 +01:00
Makefile
…
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
namei: only return -ECHILD from follow_dotdot_rcu()
2020-03-05 16:42:20 +01:00
namespace.c
fs/namespace.c: fix mountpoint reference counter race
2020-04-29 16:31:26 +02:00
no-block.c
…
nsfs.c
…
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-18 07:14:21 +01:00
pipe.c
…
pnode.c
propagate_one(): mnt_set_mountpoint() needs mount_lock
2020-05-02 17:26:01 +02:00
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
vfs: avoid problematic remapping requests into partial EOF block
2019-12-01 09:17:04 +01:00
readdir.c
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
2020-01-04 19:13:26 +01:00
select.c
…
seq_file.c
seq_file: fix problem when seeking mid-record
2019-08-25 10:47:43 +02:00
signalfd.c
…
splice.c
splice: only read in as much information as there is pipe buffer space
2019-12-17 20:35:43 +01:00
stack.c
…
stat.c
…
statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-11 18:21:39 +02:00
super.c
…
sync.c
…
timerfd.c
…
userfaultfd.c
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
2020-01-04 19:13:18 +01:00
utimes.c
…
xattr.c
…