[ 34.650765][ T26] audit: type=1800 audit(1556016100.327:28): pid=7422 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. [ 35.665056][ T26] audit: type=1800 audit(1556016101.417:29): pid=7422 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 [ 35.701938][ T26] audit: type=1800 audit(1556016101.417:30): pid=7422 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [....] startpar: service(s) returned failure: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts. syzkaller login: [ 45.232796][ T7601] IPVS: ftp: loaded support on port[0] = 21 [ 45.232802][ T7605] IPVS: ftp: loaded support on port[0] = 21 [ 45.248283][ T7606] IPVS: ftp: loaded support on port[0] = 21 [ 45.251312][ T7608] IPVS: ftp: loaded support on port[0] = 21 [ 45.259682][ T7604] IPVS: ftp: loaded support on port[0] = 21 [ 45.264996][ T7607] 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 [ 45.829020][ T7832] kasan: CONFIG_KASAN_INLINE enabled [ 45.834344][ T7832] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 45.842413][ T7832] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 45.849348][ T7832] CPU: 1 PID: 7832 Comm: syz-executor133 Not tainted 5.1.0-rc6 #79 [ 45.857238][ T7832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.867308][ T7832] RIP: 0010:__lock_acquire+0xbef/0x3fb0 executing program executing program executing program executing program executing program [ 45.872857][ T7832] 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 [ 45.892602][ T7832] RSP: 0018:ffff8880995eef58 EFLAGS: 00010002 [ 45.898688][ T7832] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 45.906669][ T7832] RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000001 [ 45.914646][ T7832] RBP: ffff8880995ef090 R08: 0000000000000001 R09: 0000000000000001 executing program executing program executing program executing program executing program executing program [ 45.922622][ T7832] R10: ffffed1015d25bc7 R11: ffff88808e252580 R12: 0000000000000000 [ 45.930730][ T7832] R13: 0000000000000130 R14: 0000000000000001 R15: 0000000000000001 [ 45.938698][ T7832] FS: 00007fc825824700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 45.947625][ T7832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.954204][ T7832] CR2: 00007fff6688cc50 CR3: 00000000a0920000 CR4: 00000000001406e0 [ 45.962292][ T7832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.970278][ T7832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 executing program executing program executing program executing program executing program executing program [ 45.978343][ T7832] Call Trace: [ 45.981664][ T7832] ? mark_held_locks+0xf0/0xf0 [ 45.986442][ T7832] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 45.992277][ T7832] lock_acquire+0x16f/0x3f0 [ 45.996794][ T7832] ? skb_queue_tail+0x26/0x150 [ 46.001563][ T7832] _raw_spin_lock_irqsave+0x95/0xcd [ 46.006758][ T7832] ? skb_queue_tail+0x26/0x150 [ 46.011521][ T7832] skb_queue_tail+0x26/0x150 [ 46.016116][ T7832] ? rxrpc_input_data+0x2430/0x2430 [ 46.021317][ T7832] ? rxrpc_input_data+0x2430/0x2430 executing program executing program executing program executing program executing program [ 46.026513][ T7832] rxrpc_input_packet+0x4a0/0x5536 [ 46.031633][ T7832] ? __lock_acquire+0x548/0x3fb0 [ 46.036577][ T7832] ? rxrpc_input_data+0x2430/0x2430 [ 46.041777][ T7832] ? nf_ct_deliver_cached_events+0x216/0x6e0 [ 46.047851][ T7832] ? find_held_lock+0x35/0x130 [ 46.052623][ T7832] ? rxrpc_input_data+0x2430/0x2430 [ 46.058493][ T7832] udp_queue_rcv_one_skb+0xaf2/0x1780 [ 46.063878][ T7832] udp_queue_rcv_skb+0x128/0x730 [ 46.068814][ T7832] udp_unicast_rcv_skb.isra.0+0xb9/0x360 [ 46.074474][ T7832] __udp4_lib_rcv+0x701/0x2ca0 executing program executing program executing program executing program executing program executing program [ 46.079249][ T7832] ? mark_held_locks+0xf0/0xf0 [ 46.084026][ T7832] udp_rcv+0x22/0x30 [ 46.087922][ T7832] ip_protocol_deliver_rcu+0x60/0x8f0 [ 46.093294][ T7832] ? kasan_check_read+0x11/0x20 [ 46.098152][ T7832] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 46.104054][ T7832] ip_local_deliver_finish+0x23b/0x390 [ 46.109528][ T7832] ip_local_deliver+0x1e9/0x520 [ 46.114384][ T7832] ? ip_local_deliver_finish+0x390/0x390 [ 46.120012][ T7832] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 executing program executing program executing program executing program executing program executing program [ 46.126250][ T7832] ? ip_protocol_deliver_rcu+0x8f0/0x8f0 [ 46.131891][ T7832] ip_rcv_finish+0x1e1/0x300 [ 46.136490][ T7832] ip_rcv+0xe8/0x3f0 [ 46.140401][ T7832] ? ip_local_deliver+0x520/0x520 [ 46.145436][ T7832] ? ip_rcv_finish_core.isra.0+0x1b70/0x1b70 [ 46.151452][ T7832] ? mark_held_locks+0xf0/0xf0 [ 46.156284][ T7832] ? ip_local_deliver+0x520/0x520 [ 46.161305][ T7832] __netif_receive_skb_one_core+0x115/0x1a0 [ 46.167194][ T7832] ? __netif_receive_skb_core+0x3040/0x3040 [ 46.173087][ T7832] ? lock_acquire+0x16f/0x3f0 executing program executing program executing program executing program executing program executing program [ 46.177768][ T7832] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.184190][ T7832] __netif_receive_skb+0x2c/0x1c0 [ 46.189223][ T7832] netif_receive_skb_internal+0x117/0x660 [ 46.194956][ T7832] ? dev_cpu_dead+0x920/0x920 [ 46.199644][ T7832] ? eth_gro_receive+0x890/0x890 [ 46.204592][ T7832] napi_gro_frags+0xade/0xd10 [ 46.209276][ T7832] tun_get_user+0x2f24/0x3fb0 [ 46.213967][ T7832] ? tun_build_skb.isra.0+0x1300/0x1300 [ 46.219518][ T7832] ? tun_get+0x171/0x290 [ 46.223767][ T7832] ? lock_downgrade+0x880/0x880 executing program executing program executing program executing program executing program [ 46.228623][ T7832] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.234860][ T7832] ? kasan_check_read+0x11/0x20 [ 46.239712][ T7832] tun_chr_write_iter+0xbd/0x156 [ 46.244651][ T7832] do_iter_readv_writev+0x5e1/0x8e0 [ 46.249850][ T7832] ? vfs_dedupe_file_range+0x780/0x780 [ 46.255314][ T7832] ? apparmor_file_permission+0x25/0x30 [ 46.260857][ T7832] ? rw_verify_area+0x118/0x360 [ 46.265702][ T7832] do_iter_write+0x184/0x610 [ 46.270325][ T7832] ? dup_iter+0x260/0x260 [ 46.274664][ T7832] ? __fget+0x35a/0x550 executing program executing program executing program executing program executing program executing program [ 46.278829][ T7832] vfs_writev+0x1b3/0x2f0 [ 46.283165][ T7832] ? vfs_iter_write+0xb0/0xb0 [ 46.287857][ T7832] ? ksys_dup3+0x3e0/0x3e0 [ 46.292277][ T7832] ? __fdget+0x1b/0x20 [ 46.296349][ T7832] ? sockfd_lookup_light+0xcb/0x180 [ 46.301556][ T7832] ? __fget_light+0x1a9/0x230 [ 46.306241][ T7832] do_writev+0x15e/0x370 [ 46.310496][ T7832] ? vfs_writev+0x2f0/0x2f0 [ 46.315007][ T7832] ? do_syscall_64+0x26/0x610 [ 46.319695][ T7832] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.325771][ T7832] ? do_syscall_64+0x26/0x610 executing program executing program executing program executing program executing program executing program [ 46.330461][ T7832] __x64_sys_writev+0x75/0xb0 [ 46.335137][ T7832] do_syscall_64+0x103/0x610 [ 46.339740][ T7832] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.345630][ T7832] RIP: 0033:0x447dd1 [ 46.349534][ T7832] 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 [ 46.369129][ T7832] RSP: 002b:00007fc825823d20 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 executing program executing program executing program executing program executing program executing program [ 46.377643][ T7832] RAX: ffffffffffffffda RBX: 00000000006e3a18 RCX: 0000000000447dd1 [ 46.385622][ T7832] RDX: 0000000000000001 RSI: 00007fc825823d60 RDI: 00000000000000f0 [ 46.393589][ T7832] RBP: 00000000006e3a10 R08: 0000000000000100 R09: 0000000000000013 [ 46.401567][ T7832] R10: 000000000000214e R11: 0000000000000293 R12: 00000000006e3a1c [ 46.409536][ T7832] R13: 00007fff6688cbaf R14: 00007fc8258249c0 R15: 00000000006e3a1c [ 46.417506][ T7832] Modules linked in: [ 46.421432][ T7832] ---[ end trace 074da8b674005ef4 ]--- executing program executing program executing program executing program executing program [ 46.426903][ T7832] RIP: 0010:__lock_acquire+0xbef/0x3fb0 [ 46.432462][ T7832] 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 [ 46.452071][ T7832] RSP: 0018:ffff8880995eef58 EFLAGS: 00010002 [ 46.458229][ T7832] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 46.468807][ T7832] RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000001 executing program executing program executing program executing program executing program executing program [ 46.477894][ T7832] RBP: ffff8880995ef090 R08: 0000000000000001 R09: 0000000000000001 [ 46.485869][ T7832] R10: ffffed1015d25bc7 R11: ffff88808e252580 R12: 0000000000000000 [ 46.493848][ T7832] R13: 0000000000000130 R14: 0000000000000001 R15: 0000000000000001 [ 46.501825][ T7832] FS: 00007fc825824700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 46.510841][ T7832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.517440][ T7832] CR2: 00007fff6688cc50 CR3: 00000000a0920000 CR4: 00000000001406e0 executing program executing program [ 46.525426][ T7832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.533393][ T7832] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.541356][ T7832] Kernel panic - not syncing: Fatal exception in interrupt [ 46.549363][ T7832] Kernel Offset: disabled [ 46.553770][ T7832] Rebooting in 86400 seconds..