[  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 '10.128.1.25' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   49.851278][ T8436] loop0: detected capacity change from 4096 to 0
[   49.859870][ T8436] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   49.870067][ T8436] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   49.885114][ T8436] EXT4-fs (loop0): mount failed
executing program
[   55.042595][ T8444] loop0: detected capacity change from 4096 to 0
[   55.052734][ T8444] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   55.062854][ T8444] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   55.077392][ T8444] EXT4-fs (loop0): mount failed
executing program
[   60.229843][ T8452] loop0: detected capacity change from 4096 to 0
[   60.237858][ T8452] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   60.247763][ T8452] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   60.262151][ T8452] EXT4-fs (loop0): mount failed
executing program
[   65.392855][ T8460] loop0: detected capacity change from 4096 to 0
[   65.401316][ T8460] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   65.411038][ T8460] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   65.425427][ T8460] EXT4-fs (loop0): mount failed
executing program
[   70.582837][ T8468] loop0: detected capacity change from 4096 to 0
[   70.590923][ T8468] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0).
[   70.600620][ T8468] EXT4-fs warning (device loop0): ext4_enable_quotas:6430: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix.
[   70.615115][ T8468] EXT4-fs (loop0): mount failed
[   75.631898][ T8435] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   77.711409][ T8435] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810ead8300 (size 64):
  comm "syz-executor617", pid 8460, jiffies 4294943812 (age 12.380s)
  hex dump (first 32 bytes):
    00 50 04 08 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:
    [<0000000060350fcc>] v2_read_file_info+0x1ae/0x430
    [<000000005716fe01>] dquot_load_quota_sb+0x351/0x650
    [<0000000042eec254>] dquot_load_quota_inode+0xda/0x160
    [<0000000058e8c7db>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000005e591f5d>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000fda9a158>] mount_bdev+0x223/0x260
    [<000000003d6ec400>] legacy_get_tree+0x2b/0x90
    [<00000000bbd083ac>] vfs_get_tree+0x28/0x100
    [<0000000072262ccc>] path_mount+0xc5e/0x1170
    [<000000001f321c02>] __x64_sys_mount+0x18e/0x1d0
    [<00000000cb00b9c4>] do_syscall_64+0x2d/0x70
    [<00000000da2e8e97>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88810ead8140 (size 64):
  comm "syz-executor617", pid 8468, jiffies 4294944331 (age 7.190s)
  hex dump (first 32 bytes):
    00 50 04 08 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:
    [<0000000060350fcc>] v2_read_file_info+0x1ae/0x430
    [<000000005716fe01>] dquot_load_quota_sb+0x351/0x650
    [<0000000042eec254>] dquot_load_quota_inode+0xda/0x160
    [<0000000058e8c7db>] ext4_enable_quotas+0x1b2/0x2f0
    [<000000005e591f5d>] ext4_fill_super+0x3fa5/0x5ad0
    [<00000000fda9a158>] mount_bdev+0x223/0x260
    [<000000003d6ec400>] legacy_get_tree+0x2b/0x90
    [<00000000bbd083ac>] vfs_get_tree+0x28/0x100
    [<0000000072262ccc>] path_mount+0xc5e/0x1170
    [<000000001f321c02>] __x64_sys_mount+0x18e/0x1d0
    [<00000000cb00b9c4>] do_syscall_64+0x2d/0x70
    [<00000000da2e8e97>] entry_SYSCALL_64_after_hwframe+0x44/0xa9