[ 35.838403][ T26] audit: type=1800 audit(1556020343.388:27): pid=7450 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.838430][ T26] audit: type=1800 audit(1556020343.388:28): pid=7450 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 36.655945][ T26] audit: type=1800 audit(1556020344.248:29): pid=7450 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 36.676486][ T26] audit: type=1800 audit(1556020344.248:30): pid=7450 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.30' (ECDSA) to the list of known hosts. syzkaller login: [ 46.976105][ T7612] IPVS: ftp: loaded support on port[0] = 21 [ 46.976111][ T7608] IPVS: ftp: loaded support on port[0] = 21 [ 46.988839][ T7614] IPVS: ftp: loaded support on port[0] = 21 [ 46.994829][ T7611] IPVS: ftp: loaded support on port[0] = 21 [ 47.007485][ T7613] IPVS: ftp: loaded support on port[0] = 21 [ 47.011932][ T7615] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 50.145027][ T9201] kasan: CONFIG_KASAN_INLINE enabled [ 50.150354][ T9201] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.158428][ T9201] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.165647][ T9201] CPU: 1 PID: 9201 Comm: syz-executor239 Not tainted 5.1.0-rc6 #79 [ 50.174427][ T9201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.184821][ T9201] RIP: 0010:__lock_acquire+0xbef/0x3fb0 [ 50.190368][ T9201] Code: 00 0f 85 a5 1f 00 00 48 81 c4 10 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 21 00 00 49 81 7d 00 20 54 9c 89 0f 84 cf f4 [ 50.210459][ T9201] RSP: 0018:ffff8880a491ef58 EFLAGS: 00010002 [ 50.216519][ T9201] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 50.224499][ T9201] RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000001 [ 50.232460][ T9201] RBP: ffff8880a491f090 R08: 0000000000000001 R09: 0000000000000001 [ 50.240595][ T9201] R10: ffffed1015d25bc7 R11: ffff8880a09a8300 R12: 0000000000000000 [ 50.248735][ T9201] R13: 0000000000000130 R14: 0000000000000001 R15: 0000000000000001 [ 50.256715][ T9201] FS: 00007f609850c700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 50.265635][ T9201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.272293][ T9201] CR2: 00007ffce3a0c180 CR3: 000000008d5dc000 CR4: 00000000001406e0 [ 50.280447][ T9201] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.288595][ T9201] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.296579][ T9201] Call Trace: [ 50.299900][ T9201] ? mark_held_locks+0xf0/0xf0 [ 50.304665][ T9201] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 50.310463][ T9201] lock_acquire+0x16f/0x3f0 [ 50.314970][ T9201] ? skb_queue_tail+0x26/0x150 [ 50.320082][ T9201] _raw_spin_lock_irqsave+0x95/0xcd [ 50.325288][ T9201] ? skb_queue_tail+0x26/0x150 [ 50.330081][ T9201] skb_queue_tail+0x26/0x150 [ 50.334980][ T9201] ? rxrpc_input_data+0x2430/0x2430 [ 50.340168][ T9201] ? rxrpc_input_data+0x2430/0x2430 [ 50.345396][ T9201] rxrpc_input_packet+0x4a0/0x5536 [ 50.350503][ T9201] ? __lock_acquire+0x548/0x3fb0 [ 50.355949][ T9201] ? rxrpc_input_data+0x2430/0x2430 [ 50.361137][ T9201] ? nf_ct_deliver_cached_events+0x216/0x6e0 [ 50.367499][ T9201] ? find_held_lock+0x35/0x130 [ 50.372256][ T9201] ? rxrpc_input_data+0x2430/0x2430 [ 50.377447][ T9201] udp_queue_rcv_one_skb+0xaf2/0x1780 [ 50.382806][ T9201] udp_queue_rcv_skb+0x128/0x730 [ 50.387725][ T9201] udp_unicast_rcv_skb.isra.0+0xb9/0x360 [ 50.393377][ T9201] __udp4_lib_rcv+0x701/0x2ca0 [ 50.398215][ T9201] ? mark_held_locks+0xf0/0xf0 [ 50.403326][ T9201] udp_rcv+0x22/0x30 [ 50.407219][ T9201] ip_protocol_deliver_rcu+0x60/0x8f0 [ 50.415892][ T9201] ? kasan_check_read+0x11/0x20 [ 50.420737][ T9201] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 50.426833][ T9201] ip_local_deliver_finish+0x23b/0x390 [ 50.432634][ T9201] ip_local_deliver+0x1e9/0x520 [ 50.437468][ T9201] ? ip_local_deliver_finish+0x390/0x390 [ 50.443188][ T9201] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.449519][ T9201] ? ip_protocol_deliver_rcu+0x8f0/0x8f0 [ 50.455400][ T9201] ip_rcv_finish+0x1e1/0x300 [ 50.460098][ T9201] ip_rcv+0xe8/0x3f0 [ 50.463982][ T9201] ? ip_local_deliver+0x520/0x520 [ 50.468990][ T9201] ? ip_rcv_finish_core.isra.0+0x1b70/0x1b70 [ 50.474963][ T9201] ? mark_held_locks+0xf0/0xf0 [ 50.479711][ T9201] ? ip_local_deliver+0x520/0x520 [ 50.484720][ T9201] __netif_receive_skb_one_core+0x115/0x1a0 [ 50.490604][ T9201] ? __netif_receive_skb_core+0x3040/0x3040 [ 50.496493][ T9201] ? lock_acquire+0x16f/0x3f0 [ 50.501252][ T9201] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.507501][ T9201] __netif_receive_skb+0x2c/0x1c0 [ 50.512645][ T9201] netif_receive_skb_internal+0x117/0x660 [ 50.518375][ T9201] ? dev_cpu_dead+0x920/0x920 [ 50.523068][ T9201] ? eth_gro_receive+0x890/0x890 [ 50.527995][ T9201] napi_gro_frags+0xade/0xd10 [ 50.532658][ T9201] tun_get_user+0x2f24/0x3fb0 [ 50.537437][ T9201] ? tun_build_skb.isra.0+0x1300/0x1300 [ 50.543182][ T9201] ? tun_get+0x171/0x290 [ 50.547422][ T9201] ? lock_downgrade+0x880/0x880 [ 50.552272][ T9201] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.558632][ T9201] ? kasan_check_read+0x11/0x20 [ 50.563581][ T9201] tun_chr_write_iter+0xbd/0x156 [ 50.568601][ T9201] do_iter_readv_writev+0x5e1/0x8e0 [ 50.573819][ T9201] ? vfs_dedupe_file_range+0x780/0x780 [ 50.579300][ T9201] ? apparmor_file_permission+0x25/0x30 [ 50.584871][ T9201] ? rw_verify_area+0x118/0x360 [ 50.589905][ T9201] do_iter_write+0x184/0x610 [ 50.594692][ T9201] ? dup_iter+0x260/0x260 [ 50.599205][ T9201] ? __fget+0x35a/0x550 [ 50.603386][ T9201] vfs_writev+0x1b3/0x2f0 [ 50.607703][ T9201] ? vfs_iter_write+0xb0/0xb0 [ 50.612410][ T9201] ? ksys_dup3+0x3e0/0x3e0 [ 50.616817][ T9201] ? __fdget+0x1b/0x20 [ 50.622536][ T9201] ? sockfd_lookup_light+0xcb/0x180 [ 50.627728][ T9201] ? __fget_light+0x1a9/0x230 [ 50.632497][ T9201] do_writev+0x15e/0x370 [ 50.636973][ T9201] ? vfs_writev+0x2f0/0x2f0 [ 50.641814][ T9201] ? do_syscall_64+0x26/0x610 [ 50.646576][ T9201] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.652631][ T9201] ? do_syscall_64+0x26/0x610 [ 50.657299][ T9201] __x64_sys_writev+0x75/0xb0 [ 50.661962][ T9201] do_syscall_64+0x103/0x610 [ 50.666539][ T9201] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.672411][ T9201] RIP: 0033:0x447de1 [ 50.678919][ T9201] Code: 75 14 b8 14 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 07 fc ff c3 48 83 ec 08 e8 3a 2c 00 00 48 89 04 24 b8 14 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 83 2c 00 00 48 89 d0 48 83 c4 08 48 3d 01 [ 50.698619][ T9201] RSP: 002b:00007f609850bd20 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 [ 50.707025][ T9201] RAX: ffffffffffffffda RBX: 00000000006e3a18 RCX: 0000000000447de1 [ 50.715207][ T9201] RDX: 0000000000000001 RSI: 00007f609850bd60 RDI: 00000000000000f0 [ 50.723278][ T9201] RBP: 00000000006e3a10 R08: 0000000000000100 R09: 0000000000000013 [ 50.731259][ T9201] R10: 000000000000214e R11: 0000000000000293 R12: 00000000006e3a1c [ 50.739377][ T9201] R13: 00007ffce3a0c0df R14: 00007f609850c9c0 R15: 00000000006e3a1c [ 50.747342][ T9201] Modules linked in: [ 50.751235][ T9201] ---[ end trace d0f9df167a891a42 ]--- [ 50.756791][ T9201] RIP: 0010:__lock_acquire+0xbef/0x3fb0 [ 50.762427][ T9201] Code: 00 0f 85 a5 1f 00 00 48 81 c4 10 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 21 00 00 49 81 7d 00 20 54 9c 89 0f 84 cf f4 [ 50.782213][ T9201] RSP: 0018:ffff8880a491ef58 EFLAGS: 00010002 [ 50.788702][ T9201] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 50.796666][ T9201] RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000001 [ 50.804632][ T9201] RBP: ffff8880a491f090 R08: 0000000000000001 R09: 0000000000000001 [ 50.812882][ T9201] R10: ffffed1015d25bc7 R11: ffff8880a09a8300 R12: 0000000000000000 [ 50.821070][ T9201] R13: 0000000000000130 R14: 0000000000000001 R15: 0000000000000001 [ 50.829427][ T9201] FS: 00007f609850c700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 50.838760][ T9201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.845439][ T9201] CR2: 00007ffce3a0c180 CR3: 000000008d5dc000 CR4: 00000000001406e0 [ 50.853438][ T9201] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.861600][ T9201] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.874918][ T9201] Kernel panic - not syncing: Fatal exception in interrupt [ 50.883441][ T9201] Kernel Offset: disabled [ 50.887984][ T9201] Rebooting in 86400 seconds..