[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 80.175653][ T27] audit: type=1800 audit(1578564075.774:25): pid=9373 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 80.195909][ T27] audit: type=1800 audit(1578564075.774:26): pid=9373 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 80.249147][ T27] audit: type=1800 audit(1578564075.774:27): pid=9373 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 '10.128.1.22' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 91.862623][ T9526] IPVS: ftp: loaded support on port[0] = 21 [ 91.894195][ T2740] ------------[ cut here ]------------ [ 91.899781][ T2740] name '哢0=#z /g#!wja+2' [ 91.905570][ T2740] WARNING: CPU: 1 PID: 2740 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 91.914761][ T2740] Kernel panic - not syncing: panic_on_warn set ... [ 91.921340][ T2740] CPU: 1 PID: 2740 Comm: kworker/1:17 Not tainted 5.5.0-rc5-syzkaller #0 [ 91.930144][ T2740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.940190][ T2740] Workqueue: afs afs_manage_cell [ 91.945237][ T2740] Call Trace: [ 91.948514][ T2740] dump_stack+0x197/0x210 [ 91.952833][ T2740] ? __xlate_proc_name+0x10/0x110 [ 91.957836][ T2740] panic+0x2e3/0x75c [ 91.961719][ T2740] ? add_taint.cold+0x16/0x16 [ 91.966379][ T2740] ? __kasan_check_write+0x14/0x20 [ 91.971648][ T2740] ? __warn.cold+0x14/0x3e [ 91.976047][ T2740] ? __warn+0xd9/0x1cf [ 91.980165][ T2740] ? __xlate_proc_name+0xe7/0x110 [ 91.985179][ T2740] __warn.cold+0x2f/0x3e [ 91.989403][ T2740] ? __xlate_proc_name+0xe7/0x110 [ 91.994410][ T2740] report_bug+0x289/0x300 [ 91.998736][ T2740] do_error_trap+0x11b/0x200 [ 92.003319][ T2740] do_invalid_op+0x37/0x50 [ 92.007721][ T2740] ? __xlate_proc_name+0xe7/0x110 [ 92.012729][ T2740] invalid_op+0x23/0x30 [ 92.016868][ T2740] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 92.022485][ T2740] Code: 3f eb 90 ff 44 89 e0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 28 eb 90 ff 4c 89 fe 48 c7 c7 40 18 39 88 e8 88 99 61 ff <0f> 0b 41 bc fe ff ff ff eb cb 4c 89 f7 e8 37 a4 ce ff e9 3d ff ff [ 92.042120][ T2740] RSP: 0018:ffffc90007daf9d0 EFLAGS: 00010282 [ 92.048170][ T2740] RAX: 0000000000000000 RBX: ffff8880a03d9149 RCX: 0000000000000000 [ 92.056125][ T2740] RDX: 0000000000000000 RSI: ffffffff815e8506 RDI: fffff52000fb5f2c [ 92.064077][ T2740] RBP: ffffc90007dafa00 R08: ffff88809fc702c0 R09: fffffbfff165eba6 [ 92.072027][ T2740] R10: fffffbfff165eba5 R11: ffffffff8b2f5d2f R12: 0000000000000000 [ 92.079982][ T2740] R13: ffff8880a03d9139 R14: ffffc90007dafb08 R15: ffff8880a03d9139 [ 92.087957][ T2740] ? vprintk_func+0x86/0x189 [ 92.092532][ T2740] __proc_create+0xac/0x860 [ 92.097018][ T2740] ? pde_free+0x110/0x110 [ 92.101333][ T2740] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 92.107476][ T2740] proc_mkdir_data+0xbc/0x1b0 [ 92.112138][ T2740] ? proc_symlink+0x1c0/0x1c0 [ 92.116798][ T2740] ? fscache_free_cookie+0x110/0x1c0 [ 92.122066][ T2740] afs_proc_cell_setup+0x95/0x190 [ 92.127072][ T2740] afs_manage_cell+0x54b/0x1410 [ 92.132001][ T2740] ? afs_put_cell.part.0+0x180/0x180 [ 92.137272][ T2740] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 92.143230][ T2740] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 92.149187][ T2740] ? trace_hardirqs_on+0x67/0x240 [ 92.154194][ T2740] process_one_work+0x9af/0x1740 [ 92.159126][ T2740] ? pwq_dec_nr_in_flight+0x320/0x320 [ 92.164487][ T2740] ? lock_acquire+0x190/0x410 [ 92.169154][ T2740] worker_thread+0x98/0xe40 [ 92.173656][ T2740] kthread+0x361/0x430 [ 92.177724][ T2740] ? process_one_work+0x1740/0x1740 [ 92.182907][ T2740] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 92.188617][ T2740] ret_from_fork+0x24/0x30 [ 92.194625][ T2740] Kernel Offset: disabled [ 92.199010][ T2740] Rebooting in 86400 seconds..