[ 84.573566][ T27] audit: type=1800 audit(1578567926.019:25): pid=9576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 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. [ 85.742353][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 85.742365][ T27] audit: type=1800 audit(1578567927.189:29): pid=9576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 85.768984][ T27] audit: type=1800 audit(1578567927.199:30): pid=9576 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 96.486202][ T2925] ------------[ cut here ]------------ [ 96.491890][ T2925] name '哢0=#z /g#!wja+2' [ 96.497765][ T2925] WARNING: CPU: 1 PID: 2925 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 96.507064][ T2925] Kernel panic - not syncing: panic_on_warn set ... [ 96.513635][ T2925] CPU: 1 PID: 2925 Comm: kworker/1:51 Not tainted 5.5.0-rc5-syzkaller #0 [ 96.522028][ T2925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.532122][ T2925] Workqueue: afs afs_manage_cell [ 96.537066][ T2925] Call Trace: [ 96.540366][ T2925] dump_stack+0x197/0x210 [ 96.544966][ T2925] ? __xlate_proc_name+0x10/0x110 [ 96.550187][ T2925] panic+0x2e3/0x75c [ 96.554070][ T2925] ? add_taint.cold+0x16/0x16 [ 96.558750][ T2925] ? __kasan_check_write+0x14/0x20 [ 96.563962][ T2925] ? __warn.cold+0x14/0x3e [ 96.568376][ T2925] ? __warn+0xd9/0x1cf [ 96.572432][ T2925] ? __xlate_proc_name+0xe7/0x110 [ 96.577441][ T2925] __warn.cold+0x2f/0x3e [ 96.581672][ T2925] ? __xlate_proc_name+0xe7/0x110 [ 96.586714][ T2925] report_bug+0x289/0x300 [ 96.591065][ T2925] do_error_trap+0x11b/0x200 [ 96.595648][ T2925] do_invalid_op+0x37/0x50 [ 96.600081][ T2925] ? __xlate_proc_name+0xe7/0x110 [ 96.605116][ T2925] invalid_op+0x23/0x30 [ 96.609254][ T2925] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 96.614867][ T2925] 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 [ 96.634537][ T2925] RSP: 0018:ffffc9000864f9d0 EFLAGS: 00010282 [ 96.641115][ T2925] RAX: 0000000000000000 RBX: ffff88809b897d49 RCX: 0000000000000000 [ 96.649072][ T2925] RDX: 0000000000000000 RSI: ffffffff815e8506 RDI: fffff520010c9f2c [ 96.657036][ T2925] RBP: ffffc9000864fa00 R08: ffff88809f1e6380 R09: fffffbfff165eba6 [ 96.665330][ T2925] R10: fffffbfff165eba5 R11: ffffffff8b2f5d2f R12: 0000000000000000 [ 96.673277][ T2925] R13: ffff88809b897d39 R14: ffffc9000864fb08 R15: ffff88809b897d39 [ 96.681457][ T2925] ? vprintk_func+0x86/0x189 [ 96.686035][ T2925] __proc_create+0xac/0x860 [ 96.690513][ T2925] ? pde_free+0x110/0x110 [ 96.694833][ T2925] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 96.701085][ T2925] proc_mkdir_data+0xbc/0x1b0 [ 96.705756][ T2925] ? proc_symlink+0x1c0/0x1c0 [ 96.711231][ T2925] ? fscache_free_cookie+0x110/0x1c0 [ 96.716510][ T2925] afs_proc_cell_setup+0x95/0x190 [ 96.721639][ T2925] afs_manage_cell+0x54b/0x1410 [ 96.726685][ T2925] ? afs_put_cell.part.0+0x180/0x180 [ 96.732074][ T2925] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 96.737613][ T2925] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 96.743642][ T2925] ? trace_hardirqs_on+0x67/0x240 [ 96.748664][ T2925] process_one_work+0x9af/0x1740 [ 96.753652][ T2925] ? pwq_dec_nr_in_flight+0x320/0x320 [ 96.759027][ T2925] ? lock_acquire+0x190/0x410 [ 96.763719][ T2925] worker_thread+0x98/0xe40 [ 96.768230][ T2925] ? trace_hardirqs_on+0x67/0x240 [ 96.773259][ T2925] kthread+0x361/0x430 [ 96.777315][ T2925] ? process_one_work+0x1740/0x1740 [ 96.782592][ T2925] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 96.788308][ T2925] ret_from_fork+0x24/0x30 [ 96.794321][ T2925] Kernel Offset: disabled [ 96.798726][ T2925] Rebooting in 86400 seconds..