INFO: recovery required on readonly filesystem

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: ff33472c Linux 4.14.134
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1340175c600000
kernel config: https://syzkaller.appspot.com/x/.config?x=7918dc8aa910a9fb
dashboard link: https://syzkaller.appspot.com/bug?extid=dc0c6c6f84131684a115
compiler: gcc (GCC) 9.0.0 20181231 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+dc0c6c...@syzkaller.appspotmail.com

EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): INFO: recovery required on readonly filesystem
EXT4-fs (loop4): write access will be enabled during recovery
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): invalid journal inode
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs error (device loop2): ext4_iget:4859: inode #2: comm
syz-executor.2: bad extended attribute block 135266304
EXT4-fs (loop5): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs error (device loop3): ext4_iget:4859: inode #2: comm
syz-executor.3: bad extended attribute block 135266304
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): get root inode failed
EXT4-fs (loop2): mount failed
EXT4-fs (loop3): mount failed
EXT4-fs (loop5): VFS: Can't find ext4 filesystem
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): journal inode is deleted
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs error (device loop2): ext4_iget:4859: inode #2: comm
syz-executor.2: bad extended attribute block 135266304
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop3): invalid journal inode
EXT4-fs (loop2): mount failed
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop1): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop1): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop1): journal inode is deleted
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs error (device loop2): ext4_iget:4859: inode #2: comm
syz-executor.2: bad extended attribute block 135266304
jbd2_journal_init_inode: Cannot locate journal superblock
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): Could not load journal inode
EXT4-fs (loop2): mount failed
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): INFO: recovery required on readonly filesystem
EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop5): write access will be enabled during recovery
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): no journal found
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): invalid journal inode
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): INFO: recovery required on readonly filesystem
EXT4-fs (loop1): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): write access will be enabled during recovery
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop1): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): journal inode is deleted
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): INFO: recovery required on readonly filesystem
EXT4-fs (loop5): write access will be enabled during recovery
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): no journal found
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): invalid journal inode
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): VFS: Can't find ext4 filesystem
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): no journal found
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): journal inode is deleted
EXT4-fs error (device loop4): ext4_iget:4696: inode #2: comm
syz-executor.4: root inode unallocated
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop4): get root inode failed
EXT4-fs (loop4): mount failed
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): invalid journal inode
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): bad geometry: block count 1080 exceeds size of device (1
blocks)
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): no journal found
EXT4-fs (loop5): journal inode is deleted
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop5): VFS: Can't find ext4 filesystem
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop3): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): no journal found
EXT4-fs (loop4): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop4): journal inode is deleted
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop3): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): feature flags set on rev 0 fs, running e2fsck is
recommended
EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps
superblock
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps
superblock
EXT4-fs (loop2): failed to open journal device unknown-block(0,0): -6
EXT4-fs (loop3): journal inode is deleted
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
==================================================================
BUG: KASAN: global-out-of-bounds in strscpy+0x20e/0x2c0 lib/string.c:206
Read of size 8 at addr ffffffff8677bbb8 by task syz-executor.4/17702

CPU: 1 PID: 17702 Comm: syz-executor.4 Not tainted 4.14.134 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x138/0x19c lib/dump_stack.c:53
print_address_description.cold+0x5/0x1dc mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report mm/kasan/report.c:409 [inline]
kasan_report.cold+0xa9/0x2af mm/kasan/report.c:393
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
strscpy+0x20e/0x2c0 lib/string.c:206
prepare_error_buf+0x94/0x1aa0 fs/reiserfs/prints.c:213
__reiserfs_warning+0x9f/0xb0 fs/reiserfs/prints.c:288
reiserfs_getopt fs/reiserfs/super.c:1044 [inline]
reiserfs_parse_options+0xa16/0x1820 fs/reiserfs/super.c:1194
reiserfs_fill_super+0x461/0x2b20 fs/reiserfs/super.c:1946
mount_bdev+0x2be/0x370 fs/super.c:1134
get_super_block+0x35/0x40 fs/reiserfs/super.c:2605
mount_fs+0x97/0x2a1 fs/super.c:1237
vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2549 [inline]
do_mount+0x417/0x27d0 fs/namespace.c:2879
SYSC_mount fs/namespace.c:3095 [inline]
SyS_mount+0xab/0x120 fs/namespace.c:3072
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c27a
RSP: 002b:00007fbe2413ca88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbe2413cb40 RCX: 000000000045c27a
RDX: 00007fbe2413cae0 RSI: 0000000020000140 RDI: 00007fbe2413cb00
RBP: 0000000000000009 R08: 00007fbe2413cb40 R09: 00007fbe2413cae0
R10: 0000000002000000 R11: 0000000000000206 R12: 0000000000000003
R13: 00000000004c8a7f R14: 00000000004df8b8 R15: 00000000ffffffff

The buggy address belongs to the variable:
__func__.31301+0x798/0x3a60

Memory state around the buggy address:
ffffffff8677ba80: fa fa fa fa 00 02 fa fa fa fa fa fa 00 02 fa fa
ffffffff8677bb00: fa fa fa fa 06 fa fa fa fa fa fa fa 07 fa fa fa
> ffffffff8677bb80: fa fa fa fa 00 00 00 02 fa fa fa fa 00 03 fa fa
^
ffffffff8677bc00: fa fa fa fa 00 00 03 fa fa fa fa fa 00 03 fa fa
ffffffff8677bc80: fa fa fa fa 00 03 fa fa fa fa fa fa 00 00 00 00
==================================================================


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.