[  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 '10.128.10.61' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   48.763044][ T8434] loop0: detected capacity change from 4096 to 0
[   48.771713][ T8434] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   48.781426][ T8434] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   48.795960][ T8434] EXT4-fs (loop0): mount failed
executing program
[   54.066952][ T8442] loop0: detected capacity change from 4096 to 0
[   54.075009][ T8442] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   54.084540][ T8442] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   54.098804][ T8442] EXT4-fs (loop0): mount failed
[   55.199063][ T8433] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810d41ad40 (size 64):
  comm "syz-executor415", pid 8434, jiffies 4294942139 (age 12.670s)
  hex dump (first 32 bytes):
    00 48 06 0f 81 88 ff ff 00 00 00 00 00 00 00 00  .H..............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<0000000097585edb>] v2_read_file_info+0x1ae/0x430
    [<000000001f931370>] dquot_load_quota_sb+0x351/0x650
    [<000000000249b463>] dquot_load_quota_inode+0xda/0x160
    [<000000000307107c>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000045c4eb09>] ext4_fill_super+0x3fa5/0x5ad0
    [<0000000029cbaa70>] mount_bdev+0x223/0x260
    [<000000008c43a404>] legacy_get_tree+0x2b/0x90
    [<00000000bce3d24d>] vfs_get_tree+0x28/0x100
    [<00000000716a8667>] path_mount+0xc5e/0x1170
    [<000000009339d429>] __x64_sys_mount+0x18e/0x1d0
    [<00000000f791bdc3>] do_syscall_64+0x2d/0x70
    [<00000000589203b7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881104e6740 (size 64):
  comm "syz-executor415", pid 8442, jiffies 4294942669 (age 7.370s)
  hex dump (first 32 bytes):
    00 48 06 0f 81 88 ff ff 00 00 00 00 00 00 00 00  .H..............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<0000000097585edb>] v2_read_file_info+0x1ae/0x430
    [<000000001f931370>] dquot_load_quota_sb+0x351/0x650
    [<000000000249b463>] dquot_load_quota_inode+0xda/0x160
    [<000000000307107c>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000045c4eb09>] ext4_fill_super+0x3fa5/0x5ad0
    [<0000000029cbaa70>] mount_bdev+0x223/0x260
    [<000000008c43a404>] legacy_get_tree+0x2b/0x90
    [<00000000bce3d24d>] vfs_get_tree+0x28/0x100
    [<00000000716a8667>] path_mount+0xc5e/0x1170
    [<000000009339d429>] __x64_sys_mount+0x18e/0x1d0
    [<00000000f791bdc3>] do_syscall_64+0x2d/0x70
    [<00000000589203b7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

[   61.378717][ T8433] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)