[ 46.956761][ T26] audit: type=1800 audit(1556019241.310:25): pid=7835 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.984995][ T26] audit: type=1800 audit(1556019241.310:26): pid=7835 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.018912][ T26] audit: type=1800 audit(1556019241.310:27): pid=7835 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. [....] startpar: service(s) returned failure: rsyslog ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.15' (ECDSA) to the list of known hosts. syzkaller login: [ 59.954794][ T8016] IPVS: ftp: loaded support on port[0] = 21 [ 59.955873][ T8015] IPVS: ftp: loaded support on port[0] = 21 [ 59.973432][ T8018] IPVS: ftp: loaded support on port[0] = 21 [ 59.975174][ T8012] IPVS: ftp: loaded support on port[0] = 21 [ 59.982687][ T8019] IPVS: ftp: loaded support on port[0] = 21 [ 59.990084][ T8017] 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 [ 61.697591][ T8739] kasan: CONFIG_KASAN_INLINE enabled [ 61.702919][ T8739] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 61.711448][ T8739] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 61.718490][ T8739] CPU: 1 PID: 8739 Comm: syz-executor662 Not tainted 5.1.0-rc6 #80 [ 61.726810][ T8739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.737031][ T8739] RIP: 0010:__lock_acquire+0xbef/0x3fb0 executing program executing program executing program executing program executing program executing program [ 61.742596][ T8739] 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 [ 61.762842][ T8739] RSP: 0018:ffff88808c876f58 EFLAGS: 00010002 [ 61.769019][ T8739] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 61.777090][ T8739] RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000001 [ 61.785072][ T8739] RBP: ffff88808c877090 R08: 0000000000000001 R09: 0000000000000001 executing program executing program executing program [ 61.793076][ T8739] R10: ffffed1015d25bc7 R11: ffff88808b482380 R12: 0000000000000000 [ 61.801174][ T8739] R13: 0000000000000130 R14: 0000000000000001 R15: 0000000000000001 [ 61.809214][ T8739] FS: 00007f8033f7d700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 61.818329][ T8739] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.824914][ T8739] CR2: 00007ffc25ba3670 CR3: 0000000097b5d000 CR4: 00000000001406e0 [ 61.832893][ T8739] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.840955][ T8739] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.849056][ T8739] Call Trace: [ 61.852374][ T8739] ? mark_held_locks+0xf0/0xf0 [ 61.857242][ T8739] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 61.862982][ T8739] lock_acquire+0x16f/0x3f0 [ 61.867547][ T8739] ? skb_queue_tail+0x26/0x150 [ 61.872558][ T8739] _raw_spin_lock_irqsave+0x95/0xcd [ 61.877873][ T8739] ? skb_queue_tail+0x26/0x150 [ 61.882645][ T8739] skb_queue_tail+0x26/0x150 [ 61.887354][ T8739] ? rxrpc_input_data+0x2430/0x2430 [ 61.892573][ T8739] ? rxrpc_input_data+0x2430/0x2430 [ 61.898047][ T8739] rxrpc_input_packet+0x4a0/0x5536 [ 61.903204][ T8739] ? __lock_acquire+0x548/0x3fb0 [ 61.908164][ T8739] ? rxrpc_input_data+0x2430/0x2430 [ 61.913418][ T8739] ? nf_ct_deliver_cached_events+0x216/0x6e0 [ 61.919424][ T8739] ? find_held_lock+0x35/0x130 [ 61.924380][ T8739] ? rxrpc_input_data+0x2430/0x2430 [ 61.929609][ T8739] udp_queue_rcv_one_skb+0xaf2/0x1780 [ 61.935013][ T8739] udp_queue_rcv_skb+0x128/0x730 [ 61.940058][ T8739] udp_unicast_rcv_skb.isra.0+0xb9/0x360 [ 61.945699][ T8739] __udp4_lib_rcv+0x701/0x2ca0 [ 61.950473][ T8739] ? mark_held_locks+0xf0/0xf0 [ 61.955284][ T8739] udp_rcv+0x22/0x30 [ 61.959201][ T8739] ip_protocol_deliver_rcu+0x60/0x8f0 [ 61.964619][ T8739] ? kasan_check_read+0x11/0x20 [ 61.969589][ T8739] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 61.975683][ T8739] ip_local_deliver_finish+0x23b/0x390 [ 61.981151][ T8739] ip_local_deliver+0x1e9/0x520 [ 61.986038][ T8739] ? ip_local_deliver_finish+0x390/0x390 [ 61.991799][ T8739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.998139][ T8739] ? ip_protocol_deliver_rcu+0x8f0/0x8f0 [ 62.003976][ T8739] ip_rcv_finish+0x1e1/0x300 [ 62.008677][ T8739] ip_rcv+0xe8/0x3f0 [ 62.012629][ T8739] ? ip_local_deliver+0x520/0x520 [ 62.017754][ T8739] ? ip_rcv_finish_core.isra.0+0x1b70/0x1b70 [ 62.023836][ T8739] ? mark_held_locks+0xf0/0xf0 [ 62.028615][ T8739] ? ip_local_deliver+0x520/0x520 [ 62.033669][ T8739] __netif_receive_skb_one_core+0x115/0x1a0 [ 62.039584][ T8739] ? __netif_receive_skb_core+0x3040/0x3040 [ 62.045485][ T8739] ? lock_acquire+0x16f/0x3f0 [ 62.050264][ T8739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.056875][ T8739] __netif_receive_skb+0x2c/0x1c0 [ 62.061913][ T8739] netif_receive_skb_internal+0x117/0x660 [ 62.067786][ T8739] ? dev_cpu_dead+0x920/0x920 [ 62.072750][ T8739] ? eth_gro_receive+0x890/0x890 [ 62.077706][ T8739] napi_gro_frags+0xade/0xd10 [ 62.082503][ T8739] tun_get_user+0x2f24/0x3fb0 [ 62.087285][ T8739] ? tun_build_skb.isra.0+0x1300/0x1300 [ 62.092924][ T8739] ? tun_get+0x171/0x290 [ 62.097307][ T8739] ? lock_downgrade+0x880/0x880 [ 62.102171][ T8739] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.108427][ T8739] ? kasan_check_read+0x11/0x20 [ 62.113292][ T8739] tun_chr_write_iter+0xbd/0x156 [ 62.118423][ T8739] do_iter_readv_writev+0x5e1/0x8e0 [ 62.123643][ T8739] ? vfs_dedupe_file_range+0x780/0x780 [ 62.129171][ T8739] ? apparmor_file_permission+0x25/0x30 [ 62.134836][ T8739] ? rw_verify_area+0x118/0x360 [ 62.139784][ T8739] do_iter_write+0x184/0x610 [ 62.144493][ T8739] ? dup_iter+0x260/0x260 [ 62.148838][ T8739] ? __fget+0x35a/0x550 [ 62.153047][ T8739] vfs_writev+0x1b3/0x2f0 [ 62.157390][ T8739] ? vfs_iter_write+0xb0/0xb0 [ 62.162079][ T8739] ? ksys_dup3+0x3e0/0x3e0 [ 62.166602][ T8739] ? __fdget+0x1b/0x20 [ 62.170690][ T8739] ? sockfd_lookup_light+0xcb/0x180 [ 62.176043][ T8739] ? __fget_light+0x1a9/0x230 [ 62.180944][ T8739] do_writev+0x15e/0x370 [ 62.185334][ T8739] ? vfs_writev+0x2f0/0x2f0 [ 62.189943][ T8739] ? do_syscall_64+0x26/0x610 [ 62.194739][ T8739] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.200819][ T8739] ? do_syscall_64+0x26/0x610 [ 62.205508][ T8739] __x64_sys_writev+0x75/0xb0 [ 62.210213][ T8739] do_syscall_64+0x103/0x610 [ 62.214817][ T8739] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.220810][ T8739] RIP: 0033:0x447dd1 [ 62.224714][ T8739] 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 [ 62.245190][ T8739] RSP: 002b:00007f8033f7cd20 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 [ 62.253702][ T8739] RAX: ffffffffffffffda RBX: 00000000006e3a18 RCX: 0000000000447dd1 [ 62.261768][ T8739] RDX: 0000000000000001 RSI: 00007f8033f7cd60 RDI: 00000000000000f0 [ 62.269767][ T8739] RBP: 00000000006e3a10 R08: 0000000000000100 R09: 0000000000000013 [ 62.277926][ T8739] R10: 000000000000214e R11: 0000000000000293 R12: 00000000006e3a1c [ 62.285991][ T8739] R13: 00007ffc25ba35cf R14: 00007f8033f7d9c0 R15: 00000000006e3a1c [ 62.293984][ T8739] Modules linked in: [ 62.297915][ T8739] ---[ end trace d3ef5800596e075d ]--- [ 62.303410][ T8739] RIP: 0010:__lock_acquire+0xbef/0x3fb0 [ 62.308959][ T8739] 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 [ 62.328586][ T8739] RSP: 0018:ffff88808c876f58 EFLAGS: 00010002 [ 62.334670][ T8739] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 62.342650][ T8739] RDX: 0000000000000026 RSI: 0000000000000000 RDI: 0000000000000001 [ 62.350628][ T8739] RBP: ffff88808c877090 R08: 0000000000000001 R09: 0000000000000001 [ 62.358633][ T8739] R10: ffffed1015d25bc7 R11: ffff88808b482380 R12: 0000000000000000 [ 62.372470][ T8739] R13: 0000000000000130 R14: 0000000000000001 R15: 0000000000000001 [ 62.380453][ T8739] FS: 00007f8033f7d700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 62.389611][ T8739] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.396339][ T8739] CR2: 00007ffc25ba3670 CR3: 0000000097b5d000 CR4: 00000000001406e0 [ 62.404407][ T8739] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.412469][ T8739] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.420442][ T8739] Kernel panic - not syncing: Fatal exception in interrupt [ 62.428719][ T8739] Kernel Offset: disabled [ 62.433235][ T8739] Rebooting in 86400 seconds..