[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 87.914525][ T27] audit: type=1800 audit(1579807819.906:25): pid=9399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 87.934527][ T27] audit: type=1800 audit(1579807819.916:26): pid=9399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 87.971820][ T27] audit: type=1800 audit(1579807819.916:27): pid=9399 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 '10.128.10.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 97.636352][ T3063] ------------[ cut here ]------------ [ 97.642083][ T3063] name 'šþ/]uwo,"¹cðacýµ‚•´[²$ð“5x~µsþ&æ¡tw}ùª™zºcp(' [ 97.649733][ T3063] WARNING: CPU: 0 PID: 3063 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 97.659058][ T3063] Kernel panic - not syncing: panic_on_warn set ... [ 97.665679][ T3063] CPU: 0 PID: 3063 Comm: kworker/0:103 Not tainted 5.5.0-rc7-syzkaller #0 [ 97.674320][ T3063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.684484][ T3063] Workqueue: afs afs_manage_cell [ 97.689409][ T3063] Call Trace: [ 97.692798][ T3063] dump_stack+0x197/0x210 [ 97.697228][ T3063] ? __xlate_proc_name+0x30/0x110 [ 97.702261][ T3063] panic+0x2e3/0x75c [ 97.706138][ T3063] ? add_taint.cold+0x16/0x16 [ 97.710812][ T3063] ? __kasan_check_write+0x14/0x20 [ 97.715920][ T3063] ? __warn.cold+0x14/0x3e [ 97.720368][ T3063] ? __warn+0xd9/0x1cf [ 97.724424][ T3063] ? __xlate_proc_name+0xe7/0x110 [ 97.729469][ T3063] __warn.cold+0x2f/0x3e [ 97.733759][ T3063] ? __xlate_proc_name+0xe7/0x110 [ 97.738789][ T3063] report_bug+0x289/0x300 [ 97.743272][ T3063] do_error_trap+0x11b/0x200 [ 97.747858][ T3063] do_invalid_op+0x37/0x50 [ 97.752271][ T3063] ? __xlate_proc_name+0xe7/0x110 [ 97.757290][ T3063] invalid_op+0x23/0x30 [ 97.761480][ T3063] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 97.767138][ T3063] Code: 8f 09 91 ff 44 89 e0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 78 09 91 ff 4c 89 fe 48 c7 c7 40 07 39 88 e8 68 b9 61 ff <0f> 0b 41 bc fe ff ff ff eb cb 4c 89 f7 e8 97 c9 ce ff e9 3d ff ff [ 97.786738][ T3063] RSP: 0018:ffffc900099cf9d0 EFLAGS: 00010282 [ 97.792833][ T3063] RAX: 0000000000000000 RBX: ffff8880a71a313b RCX: 0000000000000000 [ 97.800826][ T3063] RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52001339f2c [ 97.808797][ T3063] RBP: ffffc900099cfa00 R08: ffff88809e122540 R09: fffffbfff165e79e [ 97.816771][ T3063] R10: fffffbfff165e79d R11: ffffffff8b2f3cef R12: 0000000000000000 [ 97.824752][ T3063] R13: ffff8880a71a3139 R14: ffffc900099cfb08 R15: ffff8880a71a3139 [ 97.832732][ T3063] ? vprintk_func+0x86/0x189 [ 97.837328][ T3063] __proc_create+0xac/0x860 [ 97.841833][ T3063] ? pde_free+0x110/0x110 [ 97.846175][ T3063] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 97.852461][ T3063] proc_mkdir_data+0xbc/0x1b0 [ 97.857134][ T3063] ? proc_symlink+0x1c0/0x1c0 [ 97.861863][ T3063] ? fscache_free_cookie+0x110/0x1c0 [ 97.867137][ T3063] afs_proc_cell_setup+0x95/0x190 [ 97.872242][ T3063] afs_manage_cell+0x54b/0x1410 [ 97.877097][ T3063] ? afs_put_cell.part.0+0x180/0x180 [ 97.882463][ T3063] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 97.888006][ T3063] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 97.894011][ T3063] ? trace_hardirqs_on+0x67/0x240 [ 97.899028][ T3063] process_one_work+0x9af/0x1740 [ 97.903962][ T3063] ? pwq_dec_nr_in_flight+0x320/0x320 [ 97.909336][ T3063] ? lock_acquire+0x190/0x410 [ 97.914062][ T3063] worker_thread+0x98/0xe40 [ 97.918630][ T3063] ? trace_hardirqs_on+0x67/0x240 [ 97.923655][ T3063] kthread+0x361/0x430 [ 97.927716][ T3063] ? process_one_work+0x1740/0x1740 [ 97.933424][ T3063] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 97.939136][ T3063] ret_from_fork+0x24/0x30 [ 97.944468][ T3063] Kernel Offset: disabled [ 97.948888][ T3063] Rebooting in 86400 seconds..