[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.715699][ T27] audit: type=1800 audit(1563372761.702:25): pid=8861 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.762154][ T27] audit: type=1800 audit(1563372761.702:26): pid=8861 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.796566][ T27] audit: type=1800 audit(1563372761.702:27): pid=8861 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.23' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.491644][ T9017] kasan: CONFIG_KASAN_INLINE enabled [ 69.497057][ T9017] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 69.505999][ T9017] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 69.512939][ T9017] CPU: 0 PID: 9017 Comm: syz-executor410 Not tainted 5.2.0-next-20190717 #40 [ 69.521693][ T9017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.531751][ T9017] RIP: 0010:kstrtouint+0x85/0x1a0 [ 69.536794][ T9017] Code: 04 00 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 6c 35 35 fe 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 4c 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 db 00 00 00 [ 69.556387][ T9017] RSP: 0018:ffff8880997a79e0 EFLAGS: 00010246 [ 69.562457][ T9017] RAX: dffffc0000000000 RBX: ffff8880997a7b38 RCX: ffffffff81c482dc [ 69.570427][ T9017] RDX: 0000000000000000 RSI: ffffffff833d4f84 RDI: 0000000000000000 [ 69.578384][ T9017] RBP: ffff8880997a7a70 R08: ffff8880a17ce100 R09: ffffed1015d06c84 [ 69.586340][ T9017] R10: ffffed1015d06c83 R11: ffff8880ae83641b R12: 0000000000000000 [ 69.604979][ T9017] R13: 1ffff110132f4f3d R14: ffff8880997a7a48 R15: 0000000000000000 [ 69.612937][ T9017] FS: 0000555556585880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 69.621846][ T9017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.628425][ T9017] CR2: 0000000000455340 CR3: 0000000095a49000 CR4: 00000000001406f0 [ 69.636381][ T9017] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.644335][ T9017] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.652290][ T9017] Call Trace: [ 69.655575][ T9017] ? __x64_sys_mount+0xbe/0x150 [ 69.660409][ T9017] ? _kstrtoul+0x170/0x170 [ 69.664841][ T9017] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.671073][ T9017] fs_parse+0xde1/0x1080 [ 69.675315][ T9017] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.681373][ T9017] fuse_parse_param+0xac/0x750 [ 69.686126][ T9017] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.692355][ T9017] ? process_init_reply+0x1650/0x1650 [ 69.697728][ T9017] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 69.703435][ T9017] ? __lookup_constant+0xd6/0x100 [ 69.708443][ T9017] ? process_init_reply+0x1650/0x1650 [ 69.713796][ T9017] vfs_parse_fs_param+0x2ca/0x540 [ 69.718807][ T9017] vfs_parse_fs_string+0x105/0x170 [ 69.723904][ T9017] ? vfs_parse_fs_param+0x540/0x540 [ 69.729083][ T9017] ? vfs_parse_fs_string+0x111/0x170 [ 69.734358][ T9017] ? rcu_read_lock_sched_held+0x110/0x130 [ 69.740061][ T9017] generic_parse_monolithic+0x181/0x200 [ 69.745591][ T9017] ? vfs_parse_fs_string+0x170/0x170 [ 69.750862][ T9017] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.757098][ T9017] ? alloc_fs_context+0x400/0x690 [ 69.762108][ T9017] ? vfs_parse_fs_string+0x170/0x170 [ 69.767396][ T9017] parse_monolithic_mount_data+0x69/0x90 [ 69.773030][ T9017] do_mount+0x1369/0x1c30 [ 69.777344][ T9017] ? copy_mount_string+0x40/0x40 [ 69.782267][ T9017] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 69.788490][ T9017] ? copy_mount_options+0x2e8/0x3f0 [ 69.793688][ T9017] ksys_mount+0xdb/0x150 [ 69.797921][ T9017] __x64_sys_mount+0xbe/0x150 [ 69.802586][ T9017] do_syscall_64+0xfd/0x6a0 [ 69.807075][ T9017] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.812945][ T9017] RIP: 0033:0x440299 [ 69.816819][ T9017] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 69.836405][ T9017] RSP: 002b:00007fff19b997e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 69.844809][ T9017] RAX: ffffffffffffffda RBX: 00007fff19b997f0 RCX: 0000000000440299 [ 69.852794][ T9017] RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 [ 69.860757][ T9017] RBP: 00000000006cb018 R08: 00000000200002c0 R09: 65732f636f72702f [ 69.868715][ T9017] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b80 [ 69.876669][ T9017] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000 [ 69.884642][ T9017] Modules linked in: [ 69.888696][ T9017] ---[ end trace 8c219e63b0160ea4 ]--- [ 69.894285][ T9017] RIP: 0010:kstrtouint+0x85/0x1a0 [ 69.899302][ T9017] Code: 04 00 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 6c 35 35 fe 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 4c 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 db 00 00 00 [ 69.918952][ T9017] RSP: 0018:ffff8880997a79e0 EFLAGS: 00010246 [ 69.925059][ T9017] RAX: dffffc0000000000 RBX: ffff8880997a7b38 RCX: ffffffff81c482dc [ 69.933057][ T9017] RDX: 0000000000000000 RSI: ffffffff833d4f84 RDI: 0000000000000000 [ 69.941043][ T9017] RBP: ffff8880997a7a70 R08: ffff8880a17ce100 R09: ffffed1015d06c84 [ 69.949057][ T9017] R10: ffffed1015d06c83 R11: ffff8880ae83641b R12: 0000000000000000 [ 69.957074][ T9017] R13: 1ffff110132f4f3d R14: ffff8880997a7a48 R15: 0000000000000000 [ 69.965092][ T9017] FS: 0000555556585880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 69.974042][ T9017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.980610][ T9017] CR2: 0000000000455340 CR3: 0000000095a49000 CR4: 00000000001406f0 [ 69.988622][ T9017] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.996630][ T9017] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.004635][ T9017] Kernel panic - not syncing: Fatal exception [ 70.011686][ T9017] Kernel Offset: disabled [ 70.016010][ T9017] Rebooting in 86400 seconds..