[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.16' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   52.160542][ T8480] loop0: detected capacity change from 4096 to 0
[   52.168792][ T8480] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   52.178715][ T8480] EXT4-fs warning (device loop0): ext4_enable_quotas:6392: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   52.193087][ T8480] EXT4-fs (loop0): mount failed
executing program
[   58.276055][ T8488] loop0: detected capacity change from 4096 to 0
[   58.284140][ T8488] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   58.293617][ T8488] EXT4-fs warning (device loop0): ext4_enable_quotas:6392: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   58.308178][ T8488] EXT4-fs (loop0): mount failed
[   64.244367][ T8479] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810ef9f140 (size 64):
  comm "syz-executor837", pid 8480, jiffies 4294942489 (age 14.160s)
  hex dump (first 32 bytes):
    00 20 b7 09 81 88 ff ff 00 00 00 00 00 00 00 00  . ..............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<0000000095d08251>] v2_read_file_info+0x1ae/0x430
    [<00000000fc94be4f>] dquot_load_quota_sb+0x351/0x650
    [<0000000037480082>] dquot_load_quota_inode+0xda/0x160
    [<00000000f12114ff>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000003e38d76a>] ext4_fill_super+0x3bc5/0x5ac0
    [<00000000574202f4>] mount_bdev+0x223/0x260
    [<0000000005c81ffe>] legacy_get_tree+0x2b/0x90
    [<00000000d8c64796>] vfs_get_tree+0x28/0x100
    [<00000000bbd2ec49>] path_mount+0xc5e/0x1170
    [<0000000045550195>] __x64_sys_mount+0x18e/0x1d0
    [<000000000fa954c7>] do_syscall_64+0x2d/0x70
    [<00000000b013cc12>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88810ef9f6c0 (size 64):
  comm "syz-executor837", pid 8488, jiffies 4294943101 (age 8.040s)
  hex dump (first 32 bytes):
    00 20 b7 09 81 88 ff ff 00 00 00 00 00 00 00 00  . ..............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<0000000095d08251>] v2_read_file_info+0x1ae/0x430
    [<00000000fc94be4f>] dquot_load_quota_sb+0x351/0x650
    [<0000000037480082>] dquot_load_quota_inode+0xda/0x160
    [<00000000f12114ff>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000003e38d76a>] ext4_fill_super+0x3bc5/0x5ac0
    [<00000000574202f4>] mount_bdev+0x223/0x260
    [<0000000005c81ffe>] legacy_get_tree+0x2b/0x90
    [<00000000d8c64796>] vfs_get_tree+0x28/0x100
    [<00000000bbd2ec49>] path_mount+0xc5e/0x1170
    [<0000000045550195>] __x64_sys_mount+0x18e/0x1d0
    [<000000000fa954c7>] do_syscall_64+0x2d/0x70
    [<00000000b013cc12>] entry_SYSCALL_64_after_hwframe+0x44/0xa9