[  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 '10.128.0.127' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   55.177861][ T8486] loop0: detected capacity change from 512 to 0
[   55.224097][ T8486] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   55.233754][ T8486] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   55.248528][ T8486] EXT4-fs (loop0): mount failed
executing program
[   61.333135][ T8497] loop0: detected capacity change from 512 to 0
[   61.346091][ T8497] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   61.355621][ T8497] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   61.370164][ T8497] EXT4-fs (loop0): mount failed
[   67.317615][ T8485] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810386c040 (size 64):
  comm "syz-executor097", pid 8486, jiffies 4294942795 (age 14.190s)
  hex dump (first 32 bytes):
    00 a0 85 10 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:
    [<00000000aea68d51>] v2_read_file_info+0x1ae/0x430
    [<000000008fcd00db>] dquot_load_quota_sb+0x351/0x650
    [<00000000697b9928>] dquot_load_quota_inode+0xda/0x160
    [<00000000a7d85866>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000046f0840f>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000bf576c9f>] mount_bdev+0x223/0x260
    [<00000000541f2346>] legacy_get_tree+0x2b/0x90
    [<000000008bc0835a>] vfs_get_tree+0x28/0x100
    [<0000000089fee015>] path_mount+0xc5e/0x1170
    [<00000000d2e4bee2>] __x64_sys_mount+0x18e/0x1d0
    [<0000000011065ca1>] do_syscall_64+0x2d/0x70
    [<00000000c7f95afd>] entry_SYSCALL_64_after_hwframe+0x44/0xa9