[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 66.570145][ T27] audit: type=1800 audit(1578587645.595:25): pid=9442 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 66.595587][ T27] audit: type=1800 audit(1578587645.595:26): pid=9442 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 66.617702][ T27] audit: type=1800 audit(1578587645.595:27): pid=9442 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 '10.128.0.96' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 91.064805][ T2669] ------------[ cut here ]------------ [ 91.070562][ T2669] name '哢0=#z /g#!wja+2' [ 91.076414][ T2669] WARNING: CPU: 1 PID: 2669 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 91.085732][ T2669] Kernel panic - not syncing: panic_on_warn set ... [ 91.092492][ T2669] CPU: 1 PID: 2669 Comm: kworker/1:2 Not tainted 5.5.0-rc5-syzkaller #0 [ 91.100863][ T2669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.111030][ T2669] Workqueue: afs afs_manage_cell [ 91.116043][ T2669] Call Trace: [ 91.119454][ T2669] dump_stack+0x197/0x210 [ 91.123781][ T2669] ? __xlate_proc_name+0x10/0x110 [ 91.128871][ T2669] panic+0x2e3/0x75c [ 91.132886][ T2669] ? add_taint.cold+0x16/0x16 [ 91.137629][ T2669] ? __kasan_check_write+0x14/0x20 [ 91.142793][ T2669] ? __warn.cold+0x14/0x3e [ 91.147316][ T2669] ? __warn+0xd9/0x1cf [ 91.151388][ T2669] ? __xlate_proc_name+0xe7/0x110 [ 91.156405][ T2669] __warn.cold+0x2f/0x3e [ 91.160640][ T2669] ? __xlate_proc_name+0xe7/0x110 [ 91.165655][ T2669] report_bug+0x289/0x300 [ 91.170113][ T2669] do_error_trap+0x11b/0x200 [ 91.174729][ T2669] do_invalid_op+0x37/0x50 [ 91.179135][ T2669] ? __xlate_proc_name+0xe7/0x110 [ 91.184178][ T2669] invalid_op+0x23/0x30 [ 91.188313][ T2669] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 91.193934][ 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 [ 91.213738][ T2669] RSP: 0018:ffffc900079bf9d0 EFLAGS: 00010282 [ 91.219830][ T2669] RAX: 0000000000000000 RBX: ffff888094ea3d49 RCX: 0000000000000000 [ 91.227795][ T2669] RDX: 0000000000000000 RSI: ffffffff815e8506 RDI: fffff52000f37f2c [ 91.235749][ T2669] RBP: ffffc900079bfa00 R08: ffff8880a0aa6480 R09: fffffbfff165eba6 [ 91.243732][ T2669] R10: fffffbfff165eba5 R11: ffffffff8b2f5d2f R12: 0000000000000000 [ 91.251862][ T2669] R13: ffff888094ea3d39 R14: ffffc900079bfb08 R15: ffff888094ea3d39 [ 91.260188][ T2669] ? vprintk_func+0x86/0x189 [ 91.264782][ T2669] __proc_create+0xac/0x860 [ 91.269488][ T2669] ? pde_free+0x110/0x110 [ 91.273835][ T2669] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 91.280008][ T2669] proc_mkdir_data+0xbc/0x1b0 [ 91.284999][ T2669] ? proc_symlink+0x1c0/0x1c0 [ 91.289712][ T2669] ? fscache_free_cookie+0x110/0x1c0 [ 91.295011][ T2669] afs_proc_cell_setup+0x95/0x190 [ 91.300099][ T2669] afs_manage_cell+0x54b/0x1410 [ 91.304987][ T2669] ? afs_put_cell.part.0+0x180/0x180 [ 91.310276][ T2669] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 91.315814][ T2669] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 91.321953][ T2669] ? trace_hardirqs_on+0x67/0x240 [ 91.327208][ T2669] process_one_work+0x9af/0x1740 [ 91.332147][ T2669] ? pwq_dec_nr_in_flight+0x320/0x320 [ 91.337517][ T2669] ? lock_acquire+0x190/0x410 [ 91.342889][ T2669] worker_thread+0x98/0xe40 [ 91.347433][ T2669] ? trace_hardirqs_on+0x67/0x240 [ 91.352457][ T2669] kthread+0x361/0x430 [ 91.356523][ T2669] ? process_one_work+0x1740/0x1740 [ 91.361713][ T2669] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 91.367511][ T2669] ret_from_fork+0x24/0x30 [ 91.374617][ T2669] Kernel Offset: disabled [ 91.379072][ T2669] Rebooting in 86400 seconds..