[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 85.192837][ T28] audit: type=1800 audit(1578586425.290:25): pid=9392 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 85.214341][ T28] audit: type=1800 audit(1578586425.300:26): pid=9392 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 85.251783][ T28] audit: type=1800 audit(1578586425.300:27): pid=9392 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 '10.128.1.50' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 96.295066][ T2720] ------------[ cut here ]------------ [ 96.301135][ T2720] name '哢0=#z /g#!wja+2' [ 96.308375][ T2720] WARNING: CPU: 0 PID: 2720 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 96.318221][ T2720] Kernel panic - not syncing: panic_on_warn set ... [ 96.324812][ T2720] CPU: 0 PID: 2720 Comm: kworker/0:8 Not tainted 5.5.0-rc5-syzkaller #0 [ 96.338469][ T2720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.350220][ T2720] Workqueue: afs afs_manage_cell [ 96.355301][ T2720] Call Trace: [ 96.361363][ T2720] dump_stack+0x197/0x210 [ 96.365691][ T2720] ? __xlate_proc_name+0x10/0x110 [ 96.370699][ T2720] panic+0x2e3/0x75c [ 96.374588][ T2720] ? add_taint.cold+0x16/0x16 [ 96.379716][ T2720] ? __kasan_check_write+0x14/0x20 [ 96.385244][ T2720] ? __warn.cold+0x14/0x3e [ 96.389642][ T2720] ? __warn+0xd9/0x1cf [ 96.393692][ T2720] ? __xlate_proc_name+0xe7/0x110 [ 96.398698][ T2720] __warn.cold+0x2f/0x3e [ 96.402935][ T2720] ? __xlate_proc_name+0xe7/0x110 [ 96.408119][ T2720] report_bug+0x289/0x300 [ 96.412440][ T2720] do_error_trap+0x11b/0x200 [ 96.417021][ T2720] do_invalid_op+0x37/0x50 [ 96.421787][ T2720] ? __xlate_proc_name+0xe7/0x110 [ 96.427854][ T2720] invalid_op+0x23/0x30 [ 96.432078][ T2720] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 96.438812][ T2720] 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 [ 96.458582][ T2720] RSP: 0018:ffffc90007c179d0 EFLAGS: 00010282 [ 96.464645][ T2720] RAX: 0000000000000000 RBX: ffff8880a64d1149 RCX: 0000000000000000 [ 96.472860][ T2720] RDX: 0000000000000000 RSI: ffffffff815e8506 RDI: fffff52000f82f2c [ 96.482595][ T2720] RBP: ffffc90007c17a00 R08: ffff8880a07a8440 R09: fffffbfff165eba6 [ 96.490903][ T2720] R10: fffffbfff165eba5 R11: ffffffff8b2f5d2f R12: 0000000000000000 [ 96.498858][ T2720] R13: ffff8880a64d1139 R14: ffffc90007c17b08 R15: ffff8880a64d1139 [ 96.507027][ T2720] ? vprintk_func+0x86/0x189 [ 96.512096][ T2720] __proc_create+0xac/0x860 [ 96.516644][ T2720] ? pde_free+0x110/0x110 [ 96.521346][ T2720] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 96.527845][ T2720] proc_mkdir_data+0xbc/0x1b0 [ 96.532595][ T2720] ? proc_symlink+0x1c0/0x1c0 [ 96.537522][ T2720] ? fscache_free_cookie+0x110/0x1c0 [ 96.542969][ T2720] afs_proc_cell_setup+0x95/0x190 [ 96.547996][ T2720] afs_manage_cell+0x54b/0x1410 [ 96.552829][ T2720] ? afs_put_cell.part.0+0x180/0x180 [ 96.558105][ T2720] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 96.563630][ T2720] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 96.569596][ T2720] ? trace_hardirqs_on+0x67/0x240 [ 96.574611][ T2720] process_one_work+0x9af/0x1740 [ 96.579532][ T2720] ? pwq_dec_nr_in_flight+0x320/0x320 [ 96.584891][ T2720] ? lock_acquire+0x190/0x410 [ 96.589559][ T2720] worker_thread+0x98/0xe40 [ 96.594045][ T2720] kthread+0x361/0x430 [ 96.598097][ T2720] ? process_one_work+0x1740/0x1740 [ 96.603283][ T2720] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 96.608979][ T2720] ret_from_fork+0x24/0x30 [ 96.614892][ T2720] Kernel Offset: disabled [ 96.619300][ T2720] Rebooting in 86400 seconds..