[  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 '10.128.0.241' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.295732][ T8452] loop0: detected capacity change from 4096 to 0
[   49.304103][ T8452] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   49.314146][ T8452] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   49.328548][ T8452] EXT4-fs (loop0): mount failed
executing program
[   54.541441][ T8460] loop0: detected capacity change from 4096 to 0
[   54.549429][ T8460] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   54.558997][ T8460] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   54.573224][ T8460] EXT4-fs (loop0): mount failed
[   55.639387][ T8451] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810dfc9d80 (size 64):
  comm "syz-executor201", pid 8452, jiffies 4294942202 (age 12.490s)
  hex dump (first 32 bytes):
    00 70 f0 0a 81 88 ff ff 00 00 00 00 00 00 00 00  .p..............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<00000000360519c5>] v2_read_file_info+0x1ae/0x430
    [<00000000a24e2466>] dquot_load_quota_sb+0x351/0x650
    [<00000000092b073b>] dquot_load_quota_inode+0xda/0x160
    [<00000000ea6a9f3d>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000002134125>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000ddffd34d>] mount_bdev+0x223/0x260
    [<00000000a473ef8c>] legacy_get_tree+0x2b/0x90
    [<00000000dfac73b9>] vfs_get_tree+0x28/0x100
    [<0000000009457bf0>] path_mount+0xc5e/0x1170
    [<00000000bfda4db5>] __x64_sys_mount+0x18e/0x1d0
    [<0000000067057826>] do_syscall_64+0x2d/0x70
    [<000000008c88810f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9