[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 76.445906][ T26] audit: type=1800 audit(1578564715.883:25): pid=9360 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 76.466415][ T26] audit: type=1800 audit(1578564715.883:26): pid=9360 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 76.532099][ T26] audit: type=1800 audit(1578564715.883:27): pid=9360 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 '10.128.0.22' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 110.613737][ T2669] ------------[ cut here ]------------ [ 110.619283][ T2669] name '哢0=#z /g#!wja+2' [ 110.625170][ T2669] WARNING: CPU: 1 PID: 2669 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 110.634362][ T2669] Kernel panic - not syncing: panic_on_warn set ... [ 110.640944][ T2669] CPU: 1 PID: 2669 Comm: kworker/1:2 Not tainted 5.5.0-rc5-syzkaller #0 [ 110.649241][ T2669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.659286][ T2669] Workqueue: afs afs_manage_cell [ 110.664195][ T2669] Call Trace: [ 110.667469][ T2669] dump_stack+0x197/0x210 [ 110.671778][ T2669] ? __xlate_proc_name+0x10/0x110 [ 110.676781][ T2669] panic+0x2e3/0x75c [ 110.680656][ T2669] ? add_taint.cold+0x16/0x16 [ 110.685314][ T2669] ? __kasan_check_write+0x14/0x20 [ 110.690400][ T2669] ? __warn.cold+0x14/0x3e [ 110.694792][ T2669] ? __warn+0xd9/0x1cf [ 110.698840][ T2669] ? __xlate_proc_name+0xe7/0x110 [ 110.703841][ T2669] __warn.cold+0x2f/0x3e [ 110.708066][ T2669] ? __xlate_proc_name+0xe7/0x110 [ 110.713071][ T2669] report_bug+0x289/0x300 [ 110.717381][ T2669] do_error_trap+0x11b/0x200 [ 110.721951][ T2669] do_invalid_op+0x37/0x50 [ 110.726356][ T2669] ? __xlate_proc_name+0xe7/0x110 [ 110.731358][ T2669] invalid_op+0x23/0x30 [ 110.735492][ T2669] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 110.741109][ T2669] 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 [ 110.760689][ T2669] RSP: 0018:ffffc90007d4f9d0 EFLAGS: 00010282 [ 110.766729][ T2669] RAX: 0000000000000000 RBX: ffff88809f0fc149 RCX: 0000000000000000 [ 110.774677][ T2669] RDX: 0000000000000000 RSI: ffffffff815e8506 RDI: fffff52000fa9f2c [ 110.782626][ T2669] RBP: ffffc90007d4fa00 R08: ffff8880a0b1a480 R09: fffffbfff165eba6 [ 110.790573][ T2669] R10: fffffbfff165eba5 R11: ffffffff8b2f5d2f R12: 0000000000000000 [ 110.798696][ T2669] R13: ffff88809f0fc139 R14: ffffc90007d4fb08 R15: ffff88809f0fc139 [ 110.806669][ T2669] ? vprintk_func+0x86/0x189 [ 110.811242][ T2669] __proc_create+0xac/0x860 [ 110.815723][ T2669] ? pde_free+0x110/0x110 [ 110.820034][ T2669] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 110.826177][ T2669] proc_mkdir_data+0xbc/0x1b0 [ 110.830829][ T2669] ? proc_symlink+0x1c0/0x1c0 [ 110.836873][ T2669] ? fscache_free_cookie+0x110/0x1c0 [ 110.842136][ T2669] afs_proc_cell_setup+0x95/0x190 [ 110.847150][ T2669] afs_manage_cell+0x54b/0x1410 [ 110.851982][ T2669] ? afs_put_cell.part.0+0x180/0x180 [ 110.857251][ T2669] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 110.862786][ T2669] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 110.868753][ T2669] ? trace_hardirqs_on+0x67/0x240 [ 110.873757][ T2669] process_one_work+0x9af/0x1740 [ 110.878673][ T2669] ? pwq_dec_nr_in_flight+0x320/0x320 [ 110.884032][ T2669] ? lock_acquire+0x190/0x410 [ 110.888691][ T2669] worker_thread+0x98/0xe40 [ 110.893171][ T2669] ? trace_hardirqs_on+0x67/0x240 [ 110.898178][ T2669] kthread+0x361/0x430 [ 110.902244][ T2669] ? process_one_work+0x1740/0x1740 [ 110.907420][ T2669] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 110.913398][ T2669] ret_from_fork+0x24/0x30 [ 110.919196][ T2669] Kernel Offset: disabled [ 110.923594][ T2669] Rebooting in 86400 seconds..