[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 85.529012][ T26] audit: type=1800 audit(1578566695.469:25): pid=9311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 85.548789][ T26] audit: type=1800 audit(1578566695.479:26): pid=9311 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 85.669737][ T26] audit: type=1800 audit(1578566695.609:27): pid=9311 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 '10.128.0.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 97.283712][ T3239] ------------[ cut here ]------------ [ 97.289297][ T3239] name '哢0=#z /g#!wja+2' [ 97.295234][ T3239] WARNING: CPU: 1 PID: 3239 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 [ 97.304416][ T3239] Kernel panic - not syncing: panic_on_warn set ... [ 97.310984][ T3239] CPU: 1 PID: 3239 Comm: kworker/1:173 Not tainted 5.5.0-rc5-syzkaller #0 [ 97.319455][ T3239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.329499][ T3239] Workqueue: afs afs_manage_cell [ 97.334452][ T3239] Call Trace: [ 97.337723][ T3239] dump_stack+0x197/0x210 [ 97.342045][ T3239] ? __xlate_proc_name+0x10/0x110 [ 97.347081][ T3239] panic+0x2e3/0x75c [ 97.350954][ T3239] ? add_taint.cold+0x16/0x16 [ 97.355646][ T3239] ? __kasan_check_write+0x14/0x20 [ 97.360735][ T3239] ? __warn.cold+0x14/0x3e [ 97.365131][ T3239] ? __warn+0xd9/0x1cf [ 97.369193][ T3239] ? __xlate_proc_name+0xe7/0x110 [ 97.374206][ T3239] __warn.cold+0x2f/0x3e [ 97.378429][ T3239] ? __xlate_proc_name+0xe7/0x110 [ 97.383429][ T3239] report_bug+0x289/0x300 [ 97.387742][ T3239] do_error_trap+0x11b/0x200 [ 97.392317][ T3239] do_invalid_op+0x37/0x50 [ 97.396753][ T3239] ? __xlate_proc_name+0xe7/0x110 [ 97.401757][ T3239] invalid_op+0x23/0x30 [ 97.405970][ T3239] RIP: 0010:__xlate_proc_name+0xe7/0x110 [ 97.411589][ T3239] 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 [ 97.431216][ T3239] RSP: 0018:ffffc900090bf9d0 EFLAGS: 00010282 [ 97.437282][ T3239] RAX: 0000000000000000 RBX: ffff8880a28be149 RCX: 0000000000000000 [ 97.445231][ T3239] RDX: 0000000000000000 RSI: ffffffff815e8506 RDI: fffff52001217f2c [ 97.453178][ T3239] RBP: ffffc900090bfa00 R08: ffff88809e3e2400 R09: fffffbfff165eba6 [ 97.461126][ T3239] R10: fffffbfff165eba5 R11: ffffffff8b2f5d2f R12: 0000000000000000 [ 97.469075][ T3239] R13: ffff8880a28be139 R14: ffffc900090bfb08 R15: ffff8880a28be139 [ 97.477042][ T3239] ? vprintk_func+0x86/0x189 [ 97.481631][ T3239] __proc_create+0xac/0x860 [ 97.486119][ T3239] ? pde_free+0x110/0x110 [ 97.490453][ T3239] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 97.496596][ T3239] proc_mkdir_data+0xbc/0x1b0 [ 97.501270][ T3239] ? proc_symlink+0x1c0/0x1c0 [ 97.505929][ T3239] ? fscache_free_cookie+0x110/0x1c0 [ 97.511195][ T3239] afs_proc_cell_setup+0x95/0x190 [ 97.516200][ T3239] afs_manage_cell+0x54b/0x1410 [ 97.521033][ T3239] ? afs_put_cell.part.0+0x180/0x180 [ 97.526303][ T3239] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 97.531826][ T3239] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 97.537786][ T3239] ? trace_hardirqs_on+0x67/0x240 [ 97.542796][ T3239] process_one_work+0x9af/0x1740 [ 97.547723][ T3239] ? pwq_dec_nr_in_flight+0x320/0x320 [ 97.553076][ T3239] ? lock_acquire+0x190/0x410 [ 97.557749][ T3239] worker_thread+0x98/0xe40 [ 97.562369][ T3239] kthread+0x361/0x430 [ 97.566419][ T3239] ? process_one_work+0x1740/0x1740 [ 97.571595][ T3239] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 97.577305][ T3239] ret_from_fork+0x24/0x30 [ 97.583085][ T3239] Kernel Offset: disabled [ 97.587469][ T3239] Rebooting in 86400 seconds..