[  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 '10.128.1.61' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   47.750536][ T8478] loop0: detected capacity change from 4096 to 0
[   47.759503][ T8478] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   47.769014][ T8478] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   47.783487][ T8478] EXT4-fs (loop0): mount failed
executing program
[   52.997204][ T8486] loop0: detected capacity change from 4096 to 0
[   53.005088][ T8486] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   53.014615][ T8486] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   53.028796][ T8486] EXT4-fs (loop0): mount failed
[   54.109978][ T8477] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810da0e7c0 (size 64):
  comm "syz-executor215", pid 8478, jiffies 4294942038 (age 12.520s)
  hex dump (first 32 bytes):
    00 e8 93 0d 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:
    [<000000009bc7da77>] v2_read_file_info+0x1ae/0x430
    [<00000000250ed6fe>] dquot_load_quota_sb+0x351/0x650
    [<00000000971916f1>] dquot_load_quota_inode+0xda/0x160
    [<00000000c77b7404>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000001d09bdfa>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000e3c15cfa>] mount_bdev+0x223/0x260
    [<00000000463fba3b>] legacy_get_tree+0x2b/0x90
    [<0000000017324969>] vfs_get_tree+0x28/0x100
    [<0000000026576098>] path_mount+0xc5e/0x1170
    [<0000000031351add>] __x64_sys_mount+0x18e/0x1d0
    [<00000000232be4b4>] do_syscall_64+0x2d/0x70
    [<0000000065a33f13>] entry_SYSCALL_64_after_hwframe+0x44/0xa9