[  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 '10.128.1.40' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.166521][ T8463] loop0: detected capacity change from 4096 to 0
[   49.174768][ T8463] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   49.184783][ T8463] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   49.199321][ T8463] EXT4-fs (loop0): mount failed
executing program
[   55.196051][ T8471] loop0: detected capacity change from 4096 to 0
[   55.204115][ T8471] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   55.213606][ T8471] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   55.227893][ T8471] EXT4-fs (loop0): mount failed
[   56.213038][ T8462] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   61.144618][ T8462] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff888110f2b0c0 (size 64):
  comm "syz-executor220", pid 8463, jiffies 4294942181 (age 14.040s)
  hex dump (first 32 bytes):
    00 20 d7 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:
    [<00000000195e5fb4>] v2_read_file_info+0x1ae/0x430
    [<000000006861a870>] dquot_load_quota_sb+0x351/0x650
    [<000000003f1b55ae>] dquot_load_quota_inode+0xda/0x160
    [<00000000776e93c1>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000c0474f2e>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000545ca9f0>] mount_bdev+0x223/0x260
    [<00000000eeea1b9f>] legacy_get_tree+0x2b/0x90
    [<00000000901c9e6c>] vfs_get_tree+0x28/0x100
    [<00000000dda0a979>] path_mount+0xc5e/0x1170
    [<00000000b7832300>] __x64_sys_mount+0x18e/0x1d0
    [<00000000df336274>] do_syscall_64+0x2d/0x70
    [<00000000205a9782>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888110e628c0 (size 64):
  comm "syz-executor220", pid 8471, jiffies 4294942785 (age 8.000s)
  hex dump (first 32 bytes):
    00 50 f1 0e 81 88 ff ff 00 00 00 00 00 00 00 00  .P..............
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<00000000195e5fb4>] v2_read_file_info+0x1ae/0x430
    [<000000006861a870>] dquot_load_quota_sb+0x351/0x650
    [<000000003f1b55ae>] dquot_load_quota_inode+0xda/0x160
    [<00000000776e93c1>] ext4_enable_quotas+0x1b2/0x2f0
    [<00000000c0474f2e>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000545ca9f0>] mount_bdev+0x223/0x260
    [<00000000eeea1b9f>] legacy_get_tree+0x2b/0x90
    [<00000000901c9e6c>] vfs_get_tree+0x28/0x100
    [<00000000dda0a979>] path_mount+0xc5e/0x1170
    [<00000000b7832300>] __x64_sys_mount+0x18e/0x1d0
    [<00000000df336274>] do_syscall_64+0x2d/0x70
    [<00000000205a9782>] entry_SYSCALL_64_after_hwframe+0x44/0xa9