[  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 '10.128.0.190' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.438010][ T8456] loop0: detected capacity change from 4096 to 0
[   49.446485][ T8456] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   49.456552][ T8456] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   49.471053][ T8456] EXT4-fs (loop0): mount failed
executing program
[   54.733075][ T8464] loop0: detected capacity change from 4096 to 0
[   54.741051][ T8464] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   54.750955][ T8464] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   54.765365][ T8464] EXT4-fs (loop0): mount failed
executing program
[   60.079356][ T8472] loop0: detected capacity change from 4096 to 0
[   60.087825][ T8472] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   60.097653][ T8472] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   60.111971][ T8472] EXT4-fs (loop0): mount failed
[   65.261069][ T8455] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   67.413492][ T8455] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888110b638c0 (size 64):
  comm "syz-executor157", pid 8464, jiffies 4294942734 (age 12.740s)
  hex dump (first 32 bytes):
    00 b8 ef 0e 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:
    [<00000000c3fa0b8b>] v2_read_file_info+0x1ae/0x430
    [<00000000d86fed5d>] dquot_load_quota_sb+0x351/0x650
    [<000000003af22ff6>] dquot_load_quota_inode+0xda/0x160
    [<000000002a311804>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000088e61868>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000aec9d5fb>] mount_bdev+0x223/0x260
    [<00000000ec5f7630>] legacy_get_tree+0x2b/0x90
    [<00000000cfeb1f9a>] vfs_get_tree+0x28/0x100
    [<0000000098720705>] path_mount+0xc5e/0x1170
    [<00000000e0c64fd2>] __x64_sys_mount+0x18e/0x1d0
    [<00000000c28faa68>] do_syscall_64+0x2d/0x70
    [<00000000b71133e6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888110b63180 (size 64):
  comm "syz-executor157", pid 8472, jiffies 4294943268 (age 7.400s)
  hex dump (first 32 bytes):
    00 68 b4 10 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:
    [<00000000c3fa0b8b>] v2_read_file_info+0x1ae/0x430
    [<00000000d86fed5d>] dquot_load_quota_sb+0x351/0x650
    [<000000003af22ff6>] dquot_load_quota_inode+0xda/0x160
    [<000000002a311804>] ext4_enable_quotas+0x1b2/0x2f0
    [<0000000088e61868>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000aec9d5fb>] mount_bdev+0x223/0x260
    [<00000000ec5f7630>] legacy_get_tree+0x2b/0x90
    [<00000000cfeb1f9a>] vfs_get_tree+0x28/0x100
    [<0000000098720705>] path_mount+0xc5e/0x1170
    [<00000000e0c64fd2>] __x64_sys_mount+0x18e/0x1d0
    [<00000000c28faa68>] do_syscall_64+0x2d/0x70
    [<00000000b71133e6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9