[ 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