[  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 '10.128.0.174' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.516462][ T8439] loop0: detected capacity change from 4096 to 0
[   49.525096][ T8439] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   49.534704][ T8439] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   49.548909][ T8439] EXT4-fs (loop0): mount failed
[   55.475737][ T8438] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810f790400 (size 64):
  comm "syz-executor858", pid 8439, jiffies 4294942213 (age 8.030s)
  hex dump (first 32 bytes):
    00 c0 ce 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:
    [<0000000079b4242b>] v2_read_file_info+0x1ae/0x430
    [<000000009b7feeff>] dquot_load_quota_sb+0x351/0x650
    [<000000006cffeb4a>] dquot_load_quota_inode+0xda/0x160
    [<000000009363a0fd>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000e7128892>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000429c3b37>] mount_bdev+0x223/0x260
    [<00000000324ae63e>] legacy_get_tree+0x2b/0x90
    [<000000000e09bb04>] vfs_get_tree+0x28/0x100
    [<0000000040e74429>] path_mount+0xc5e/0x1170
    [<0000000004cd6635>] __x64_sys_mount+0x18e/0x1d0
    [<00000000368cb408>] do_syscall_64+0x2d/0x70
    [<000000008709cff7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9