[  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 '10.128.1.28' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   52.470289][ T8437] loop0: detected capacity change from 4096 to 0
[   52.479006][ T8437] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   52.488512][ T8437] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   52.502892][ T8437] EXT4-fs (loop0): mount failed
executing program
[   57.610891][ T8445] loop0: detected capacity change from 4096 to 0
[   57.619954][ T8445] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   57.630031][ T8445] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   57.645433][ T8445] EXT4-fs (loop0): mount failed
[   58.710327][ T8436] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881108be800 (size 64):
  comm "syz-executor533", pid 8437, jiffies 4294942519 (age 12.300s)
  hex dump (first 32 bytes):
    00 f0 4c 0d 81 88 ff ff 00 00 00 00 00 00 00 00  ..L.............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<00000000e21f4d10>] v2_read_file_info+0x1ae/0x430
    [<0000000091533842>] dquot_load_quota_sb+0x351/0x650
    [<000000005807031f>] dquot_load_quota_inode+0xda/0x160
    [<000000006b782b19>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000c5261037>] ext4_fill_super+0x3fa5/0x5ad0
    [<0000000099778391>] mount_bdev+0x223/0x260
    [<0000000033d66664>] legacy_get_tree+0x2b/0x90
    [<000000006bc89f4d>] vfs_get_tree+0x28/0x100
    [<00000000f4691d68>] path_mount+0xc5e/0x1170
    [<0000000095cf9712>] __x64_sys_mount+0x18e/0x1d0
    [<000000009b17f5e4>] do_syscall_64+0x2d/0x70
    [<000000008e30ae72>] entry_SYSCALL_64_after_hwframe+0x44/0xa9