[  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 '10.128.0.160' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   50.787743][ T8447] loop0: detected capacity change from 4096 to 0
[   50.796237][ T8447] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   50.806293][ T8447] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   50.820788][ T8447] EXT4-fs (loop0): mount failed
executing program
[   55.963328][ T8455] loop0: detected capacity change from 4096 to 0
[   55.971468][ T8455] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   55.980975][ T8455] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   55.995137][ T8455] EXT4-fs (loop0): mount failed
executing program
[   62.117272][ T8463] loop0: detected capacity change from 4096 to 0
[   62.125280][ T8463] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   62.135058][ T8463] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   62.149362][ T8463] EXT4-fs (loop0): mount failed
executing program
[   67.273268][ T8471] loop0: detected capacity change from 4096 to 0
[   67.281359][ T8471] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   67.290875][ T8471] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   67.305070][ T8471] EXT4-fs (loop0): mount failed
[   73.310696][ T8446] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810c625040 (size 64):
  comm "syz-executor021", pid 8455, jiffies 4294942867 (age 19.530s)
  hex dump (first 32 bytes):
    00 10 20 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:
    [<0000000062e96daf>] v2_read_file_info+0x1ae/0x430
    [<00000000d100d40c>] dquot_load_quota_sb+0x351/0x650
    [<0000000057fb3640>] dquot_load_quota_inode+0xda/0x160
    [<00000000e7fbcb42>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000002643b63c>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000ad7afe9b>] mount_bdev+0x223/0x260
    [<000000001b969e91>] legacy_get_tree+0x2b/0x90
    [<0000000068ac4320>] vfs_get_tree+0x28/0x100
    [<0000000039de9be9>] path_mount+0xc5e/0x1170
    [<00000000f1b0a871>] __x64_sys_mount+0x18e/0x1d0
    [<000000001b02bd89>] do_syscall_64+0x2d/0x70
    [<0000000071cded66>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888110370300 (size 64):
  comm "syz-executor021", pid 8463, jiffies 4294943482 (age 13.380s)
  hex dump (first 32 bytes):
    00 60 13 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:
    [<0000000062e96daf>] v2_read_file_info+0x1ae/0x430
    [<00000000d100d40c>] dquot_load_quota_sb+0x351/0x650
    [<0000000057fb3640>] dquot_load_quota_inode+0xda/0x160
    [<00000000e7fbcb42>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000002643b63c>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000ad7afe9b>] mount_bdev+0x223/0x260
    [<000000001b969e91>] legacy_get_tree+0x2b/0x90
    [<0000000068ac4320>] vfs_get_tree+0x28/0x100
    [<0000000039de9be9>] path_mount+0xc5e/0x1170
    [<00000000f1b0a871>] __x64_sys_mount+0x18e/0x1d0
    [<000000001b02bd89>] do_syscall_64+0x2d/0x70
    [<0000000071cded66>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888110370040 (size 64):
  comm "syz-executor021", pid 8471, jiffies 4294943998 (age 8.220s)
  hex dump (first 32 bytes):
    00 68 13 0d 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:
    [<0000000062e96daf>] v2_read_file_info+0x1ae/0x430
    [<00000000d100d40c>] dquot_load_quota_sb+0x351/0x650
    [<0000000057fb3640>] dquot_load_quota_inode+0xda/0x160
    [<00000000e7fbcb42>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000002643b63c>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000ad7afe9b>] mount_bdev+0x223/0x260
    [<000000001b969e91>] legacy_get_tree+0x2b/0x90
    [<0000000068ac4320>] vfs_get_tree+0x28/0x100
    [<0000000039de9be9>] path_mount+0xc5e/0x1170
    [<00000000f1b0a871>] __x64_sys_mount+0x18e/0x1d0
    [<000000001b02bd89>] do_syscall_64+0x2d/0x70
    [<0000000071cded66>] entry_SYSCALL_64_after_hwframe+0x44/0xa9