[  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 '10.128.1.7' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   47.875424][ T8484] loop0: detected capacity change from 512 to 0
[   47.886221][ T8484] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   47.895787][ T8484] EXT4-fs warning (device loop0): ext4_enable_quotas:6392: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   47.910395][ T8484] EXT4-fs (loop0): mount failed
executing program
[   53.089498][ T8494] loop0: detected capacity change from 512 to 0
[   53.106089][ T8494] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   53.115648][ T8494] EXT4-fs warning (device loop0): ext4_enable_quotas:6392: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   53.130451][ T8494] EXT4-fs (loop0): mount failed
[   58.130904][ T8483] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888111c43fc0 (size 64):
  comm "syz-executor008", pid 8484, jiffies 4294942052 (age 12.390s)
  hex dump (first 32 bytes):
    00 c8 2d 0d 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:
    [<00000000b56e015a>] v2_read_file_info+0x1ae/0x430
    [<0000000089736076>] dquot_load_quota_sb+0x351/0x650
    [<000000004576d5c9>] dquot_load_quota_inode+0xda/0x160
    [<00000000b7afd764>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000bf982349>] ext4_fill_super+0x3bc5/0x5ac0
    [<00000000cfade37a>] mount_bdev+0x223/0x260
    [<000000008237d9de>] legacy_get_tree+0x2b/0x90
    [<000000005c4271fb>] vfs_get_tree+0x28/0x100
    [<000000008a2e61ef>] path_mount+0xc5e/0x1170
    [<000000008d63f4fb>] __x64_sys_mount+0x18e/0x1d0
    [<00000000a1d9767c>] do_syscall_64+0x2d/0x70
    [<0000000072f5b948>] entry_SYSCALL_64_after_hwframe+0x44/0xa9