[  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 '10.128.0.113' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   52.396818][ T8486] loop0: detected capacity change from 4096 to 0
[   52.405120][ T8486] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   52.414903][ T8486] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   52.429153][ T8486] EXT4-fs (loop0): mount failed
executing program
[   58.472142][ T8494] loop0: detected capacity change from 4096 to 0
[   58.480084][ T8494] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   58.489795][ T8494] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   58.504041][ T8494] EXT4-fs (loop0): mount failed
executing program
[   64.565885][ T8502] loop0: detected capacity change from 4096 to 0
[   64.573889][ T8502] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   64.583737][ T8502] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   64.598054][ T8502] EXT4-fs (loop0): mount failed
[   70.529503][ T8485] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881058d1ec0 (size 64):
  comm "syz-executor562", pid 8494, jiffies 4294943121 (age 14.120s)
  hex dump (first 32 bytes):
    00 70 36 0b 81 88 ff ff 00 00 00 00 00 00 00 00  .p6.............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<00000000a8373afb>] v2_read_file_info+0x1ae/0x430
    [<000000007533bdc8>] dquot_load_quota_sb+0x351/0x650
    [<0000000085a02776>] dquot_load_quota_inode+0xda/0x160
    [<00000000e89df612>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000009bfcefe>] ext4_fill_super+0x3fa5/0x5ad0
    [<0000000085a9ef6f>] mount_bdev+0x223/0x260
    [<00000000e4513fbe>] legacy_get_tree+0x2b/0x90
    [<000000005e907533>] vfs_get_tree+0x28/0x100
    [<000000001b35dfe6>] path_mount+0xc5e/0x1170
    [<00000000d15f3fcd>] __x64_sys_mount+0x18e/0x1d0
    [<000000001a25490d>] do_syscall_64+0x2d/0x70
    [<000000004a939f46>] entry_SYSCALL_64_after_hwframe+0x44/0xa9