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linux/fs
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OGAWA Hirofumi 5c3a931990 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>
2020-06-17 16:42:06 +02:00
..
9p
Merge tag '9p-for-5.4' of git://github.com/martinetd/linux
2019-09-27 15:10:34 -07:00
adfs
fs/adfs: bigdir: Fix an error code in adfs_fplus_read()
2020-01-25 11:31:59 -05:00
affs
affs: fix a memory leak in affs_remount
2019-11-18 14:26:43 +01:00
afs
rxrpc: Fix the excessive initial retransmission timeout
2020-05-27 17:48:28 +02:00
autofs
Merge branch 'next.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-12-05 17:11:48 -08:00
befs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
bfs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
btrfs
btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info
2020-05-06 08:16:25 +02:00
cachefiles
cachefiles: Fix race between read_waiter and read_copier involving op->to_do
2020-06-03 08:23:04 +02:00
ceph
ceph: flush release queue when handling caps for unknown inode
2020-06-03 08:23:21 +02:00
cifs
smb3: fix typo in mount options displayed in /proc/mounts
2020-06-17 16:41:56 +02:00
coda
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2019-09-19 09:42:37 -07:00
configfs
configfs: fix config_item refcnt leak in configfs_rmdir()
2020-05-27 17:48:07 +02:00
cramfs
cramfs: switch to use of errofc() et.al.
2020-02-07 14:48:41 -05:00
crypto
fscrypt: don't evict dirty inodes after removing key
2020-03-07 18:43:07 -08:00
debugfs
debugfs: Check module state before warning in {full/open}_proxy_open()
2020-04-17 16:13:19 +02:00
devpts
devpts_pty_kill(): don't bother with d_delete()
2019-09-03 09:30:56 -04:00
dlm
dlm: use SO_SNDTIMEO_NEW instead of SO_SNDTIMEO_OLD
2019-12-18 18:07:31 +01:00
ecryptfs
Merge tag 'ecryptfs-5.6-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
2020-02-17 21:08:37 -08:00
efivarfs
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
efs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
erofs
erofs: correct the remaining shrink objects
2020-04-17 16:13:29 +02:00
exportfs
race in exportfs_decode_fh()
2019-11-11 09:21:59 -05:00
ext2
ext2: fix debug reference to ext2_xattr_cache
2020-04-23 10:38:20 +02:00
ext4
ext4: disable dioread_nolock whenever delayed allocation is disabled
2020-05-14 07:59:13 +02:00
f2fs
f2fs: fix to wait all node page writeback
2020-04-23 10:38:21 +02:00
fat
fat: don't allow to mount if the FAT length == 0
2020-06-17 16:42:06 +02:00
freevxfs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
fscache
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
fuse
fuse: fix stack use after return
2020-02-13 09:16:07 +01:00
gfs2
gfs2: Even more gfs2_find_jhead fixes
2020-06-17 16:41:50 +02:00
hfs
hfs/hfsplus: use 64-bit inode timestamps
2019-12-18 18:07:32 +01:00
hfsplus
hfsplus: fix crash and filesystem corruption when deleting files
2020-04-17 16:13:45 +02:00
hostfs
hostfs: pass 64-bit timestamps to/from user space
2019-12-18 18:07:32 +01:00
hpfs
fs: compat_ioctl: move FITRIM emulation into file systems
2019-10-23 17:23:46 +02:00
hugetlbfs
hugetlbfs: switch to use of invalfc()
2020-02-07 14:48:42 -05:00
iomap
fibmap: Warn and return an error in case of block > INT_MAX
2020-05-20 08:22:09 +02:00
isofs
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2019-09-19 09:42:37 -07:00
jbd2
jbd2: improve comments about freeing data buffers whose page mapping is NULL
2020-04-21 09:08:00 +02:00
jffs2
fs_parse: fold fs_parameter_desc/fs_parameter_spec
2020-02-07 14:48:37 -05:00
jfs
Merge tag 'jfs-5.6' of git://github.com/kleikamp/linux-shaggy
2020-02-05 05:28:20 +00:00
kernfs
Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-05 05:02:42 +00:00
lockd
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
minix
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
nfs
NFSv3: fix rpc receive buffer size for MOUNT call
2020-05-20 08:22:23 +02:00
nfs_common
…
nfsd
nfsd: memory corruption in nfsd4_lock()
2020-05-02 08:50:45 +02:00
nilfs2
nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
2020-06-17 16:41:58 +02:00
nls
…
notify
fanotify: fix ignore mask logic for events on child and on dir
2020-06-17 16:41:51 +02:00
ntfs
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
ocfs2
dlmfs_file_write(): fix the bogosity in handling non-zero *ppos
2020-05-06 08:16:37 +02:00
omfs
fs: omfs: Initialize filesystem timestamp ranges
2019-08-30 08:11:25 -07:00
openpromfs
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
orangefs
help_next should increase position index
2020-02-04 15:22:04 -05:00
overlayfs
ovl: initialize error in ovl_copy_xattr
2020-06-17 16:42:03 +02:00
proc
proc: Use new_inode not new_inode_pseudo
2020-06-17 16:42:03 +02:00
pstore
pstore: pstore_ftrace_seq_next should increase position index
2020-04-17 16:13:31 +02:00
qnx4
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
qnx6
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
quota
Merge tag 'for_v5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2020-01-30 15:37:41 -08:00
ramfs
fs_parse: fold fs_parameter_desc/fs_parameter_spec
2020-02-07 14:48:37 -05:00
reiserfs
Merge branch 'akpm' (patches from Andrew)
2020-01-31 12:16:36 -08:00
romfs
Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-09-19 10:06:57 -07:00
squashfs
Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-09-19 10:06:57 -07:00
sysfs
treewide: remove redundant IS_ERR() before error code check
2020-02-04 03:05:27 +00:00
sysv
fs: sysv: Initialize filesystem timestamp ranges
2019-08-30 07:27:18 -07:00
tracefs
simple_recursive_removal(): kernel-side rm -rf for ramfs-style filesystems
2019-12-10 22:29:58 -05:00
ubifs
ubifs: remove broken lazytime support
2020-05-27 17:48:02 +02:00
udf
udf: Clarify meaning of f_files in udf_statfs
2020-01-20 13:59:41 +01:00
ufs
Merge tag 'y2038-vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground
2019-09-19 09:42:37 -07:00
unicode
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
vboxsf
fs: Add VirtualBox guest shared folder (vboxsf) support
2020-02-08 17:34:58 -05:00
verity
fs-verity: use u64_to_user_ptr()
2020-01-14 13:28:28 -08:00
xfs
xfs: fix partially uninitialized structure in xfs_reflink_remap_extent
2020-05-02 08:50:58 +02:00
zonefs
zonfs: Fix handling of read-only zones
2020-03-25 11:28:26 +09:00
aio.c
aio: fix async fsync creds
2020-06-17 16:41:53 +02:00
anon_inodes.c
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
attr.c
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
y2038: elfcore: Use __kernel_old_timeval for process times
2019-11-15 14:38:29 +01:00
binfmt_elf.c
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
2020-06-03 08:23:25 +02:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
binfmt_script.c
…
block_dev.c
hibernate: Allow uswsusp to write to swap
2020-04-23 10:38:09 +02:00
buffer.c
ext4: use non-movable memory for superblock readahead
2020-04-23 10:37:51 +02:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-06 20:10:26 +01:00
compat_binfmt_elf.c
y2038: elfcore: Use __kernel_old_timeval for process times
2019-11-15 14:38:29 +01:00
compat.c
…
coredump.c
coredump: fix crash when umh is disabled
2020-05-14 07:59:24 +02:00
d_path.c
[PATCH] fix d_absolute_path() interplay with fsmount()
2019-08-30 19:31:09 -04:00
dax.c
dax: pass NOWAIT flag to iomap_apply
2020-02-05 20:34:32 -08:00
dcache.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-12-08 11:08:28 -08:00
dcookies.c
…
direct-io.c
fs/direct-io.c: include fs/internal.h for missing prototype
2020-01-04 13:55:09 -08:00
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2019-12-18 00:03:01 -05:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-03 17:27:38 -07:00
eventpoll.c
epoll: call final ep_events_available() check under the lock
2020-05-20 08:22:22 +02:00
exec.c
exec: Move would_dump into flush_old_exec
2020-05-20 08:22:31 +02:00
fcntl.c
fcntl: Distribute switch variables for initialization
2020-03-03 10:55:06 -05:00
fhandle.c
fs/handle.c - fix up kerneldoc
2019-08-07 21:51:47 -04:00
file_table.c
vfs: Export flush_delayed_fput for use by knfsd.
2019-08-19 11:00:39 -04:00
file.c
fix multiplication overflow in copy_fdtable()
2020-05-27 17:48:01 +02:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 16:13:44 +02:00
fs_context.c
add prefix to fs_context->log
2020-02-07 14:48:35 -05:00
fs_parser.c
turn fs_param_is_... into functions
2020-02-07 14:48:38 -05:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
memcg: fix a crash in wb_workfn when a device disappears
2020-01-31 10:30:36 -08:00
fsopen.c
add prefix to fs_context->log
2020-02-07 14:48:35 -05:00
inode.c
futex: Fix inode life-time issue
2020-03-06 11:06:15 +01:00
internal.h
Merge tag 'for-5.6/io_uring-vfs-2020-01-29' of git://git.kernel.dk/linux-block
2020-01-29 18:53:37 -08:00
io_uring.c
io_uring: fix flush req->refs underflow
2020-06-17 16:42:01 +02:00
io-wq.c
io-wq: remove io_wq_flush and IO_WQ_WORK_INTERNAL
2020-03-02 14:03:24 -07:00
io-wq.h
io-wq: remove io_wq_flush and IO_WQ_WORK_INTERNAL
2020-03-02 14:03:24 -07:00
ioctl.c
fibmap: Warn and return an error in case of block > INT_MAX
2020-05-20 08:22:09 +02:00
Kconfig
Merge tag 'zonefs-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
2020-02-09 15:51:46 -08:00
Kconfig.binfmt
…
libfs.c
libfs: fix infoleak in simple_attr_read()
2020-04-01 10:58:17 +02:00
locks.c
locks: reinstate locks_delete_block optimization
2020-03-18 13:03:38 -07:00
Makefile
Merge tag 'zonefs-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
2020-02-09 15:51:46 -08:00
mbcache.c
…
mount.h
…
mpage.c
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-09 08:16:12 -07:00
namei.c
vfs: fix do_last() regression
2020-02-01 10:36:49 -08:00
namespace.c
saner copy_mount_options()
2020-02-03 21:23:33 -05:00
no-block.c
…
nsfs.c
Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-01-29 11:20:24 -08:00
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-12 18:25:20 -04:00
pipe.c
pipe: make sure to wake up everybody when the last reader/writer closes
2020-02-18 14:34:36 -08:00
pnode.c
propagate_one(): mnt_set_mountpoint() needs mount_lock
2020-05-02 08:50:43 +02:00
pnode.h
…
posix_acl.c
fs/posix_acl.c: fix kernel-doc warnings
2020-01-04 13:55:09 -08:00
proc_namespace.c
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
read_write.c
Merge tag 'ovl-update-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2020-02-04 11:45:21 +00:00
readdir.c
readdir: make user_access_begin() use the real access range
2020-01-23 10:15:28 -08:00
select.c
y2038: syscalls: change remaining timeval to __kernel_old_timeval
2019-11-15 14:38:29 +01:00
seq_file.c
seq_file: fix problem when seeking mid-record
2019-08-13 16:06:52 -07:00
signalfd.c
…
splice.c
pipe: Fix pipe_full() test in opipe_prep().
2020-05-27 17:48:01 +02:00
stack.c
sched/rt, fs: Use CONFIG_PREEMPTION
2019-12-08 14:37:36 +01:00
stat.c
fs: make two stat prep helpers available
2020-01-20 17:03:54 -07:00
statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-03 14:21:35 -07:00
super.c
Fix use after free in get_tree_bdev()
2020-05-06 08:16:47 +02:00
sync.c
…
timerfd.c
timerfd: Make timerfd_settime() time namespace aware
2020-01-14 12:20:53 +01:00
userfaultfd.c
Merge branch 'akpm' (patches from Andrew)
2019-12-01 20:36:41 -08:00
utimes.c
utimes: Clamp the timestamps in notify_change()
2019-12-08 19:10:50 -05:00
xattr.c
…