[  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 '10.128.15.199' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   51.015659][ T8463] loop0: detected capacity change from 4096 to 0
[   51.025107][ T8463] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   51.034653][ T8463] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   51.049479][ T8463] EXT4-fs (loop0): mount failed
executing program
[   56.684284][ T8470] loop0: detected capacity change from 4096 to 0
[   56.693381][ T8470] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   56.703105][ T8470] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   56.718182][ T8470] EXT4-fs (loop0): mount failed
[   62.181305][ T8462] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   64.491879][ T8462] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888110248840 (size 64):
  comm "syz-executor131", pid 8463, jiffies 4294942362 (age 13.550s)
  hex dump (first 32 bytes):
    00 18 56 0d 81 88 ff ff 00 00 00 00 00 00 00 00  ..V.............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<00000000099b7ccf>] v2_read_file_info+0x1ae/0x430
    [<000000007c6cb184>] dquot_load_quota_sb+0x351/0x650
    [<00000000d5ee4466>] dquot_load_quota_inode+0xda/0x160
    [<000000008a9c99bf>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000a00e8af8>] ext4_fill_super+0x3fa5/0x5ad0
    [<0000000086e55d7f>] mount_bdev+0x223/0x260
    [<000000009b67d10d>] legacy_get_tree+0x2b/0x90
    [<000000005ba08884>] vfs_get_tree+0x28/0x100
    [<0000000067abaa93>] path_mount+0xc5e/0x1170
    [<000000006d9d1624>] __x64_sys_mount+0x18e/0x1d0
    [<000000001743cbb3>] do_syscall_64+0x2d/0x70
    [<000000008c2387ff>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881103d0a00 (size 64):
  comm "syz-executor131", pid 8470, jiffies 4294942929 (age 7.880s)
  hex dump (first 32 bytes):
    00 08 93 0b 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:
    [<00000000099b7ccf>] v2_read_file_info+0x1ae/0x430
    [<000000007c6cb184>] dquot_load_quota_sb+0x351/0x650
    [<00000000d5ee4466>] dquot_load_quota_inode+0xda/0x160
    [<000000008a9c99bf>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000a00e8af8>] ext4_fill_super+0x3fa5/0x5ad0
    [<0000000086e55d7f>] mount_bdev+0x223/0x260
    [<000000009b67d10d>] legacy_get_tree+0x2b/0x90
    [<000000005ba08884>] vfs_get_tree+0x28/0x100
    [<0000000067abaa93>] path_mount+0xc5e/0x1170
    [<000000006d9d1624>] __x64_sys_mount+0x18e/0x1d0
    [<000000001743cbb3>] do_syscall_64+0x2d/0x70
    [<000000008c2387ff>] entry_SYSCALL_64_after_hwframe+0x44/0xa9