[ 37.622687] audit: type=1800 audit(1551399361.770:30): pid=7522 uid=0 auid=4294967295 ses=4294967295 subj=_ 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 '10.128.0.22' (ECDSA) to the list of known hosts. syzkaller login: [ 66.756563] IPVS: ftp: loaded support on port[0] = 21 [ 66.810681] chnl_net:caif_netlink_parms(): no params data found [ 66.838474] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.845082] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.852146] device bridge_slave_0 entered promiscuous mode [ 66.859639] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.866005] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.873516] device bridge_slave_1 entered promiscuous mode [ 66.887369] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 66.896431] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 66.912241] team0: Port device team_slave_0 added [ 66.918581] team0: Port device team_slave_1 added [ 66.980241] device hsr_slave_0 entered promiscuous mode [ 67.048276] device hsr_slave_1 entered promiscuous mode [ 67.114828] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.121306] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.128186] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.134526] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.163709] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.175089] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.194273] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.202175] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.209817] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.220488] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.229273] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.236928] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.243351] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.252484] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.260775] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.267104] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.287005] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.297004] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.309746] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.317844] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.325512] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.333553] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.341307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.348264] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready executing program [ 67.364965] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.378947] kasan: CONFIG_KASAN_INLINE enabled [ 67.383661] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 67.391060] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 67.397295] CPU: 1 PID: 7679 Comm: syz-executor383 Not tainted 5.0.0-rc8+ #88 [ 67.404998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.414341] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 67.419603] Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 41 5b fb e8 fc 7d [ 67.438498] RSP: 0018:ffff8880894af018 EFLAGS: 00010246 [ 67.443854] RAX: dffffc0000000000 RBX: ffff88808facda40 RCX: ffffffff86026003 [ 67.451108] RDX: 0000000000000000 RSI: ffffffff86026040 RDI: ffff88809707cd88 [ 67.458368] RBP: ffff8880894af040 R08: ffff88808fda2540 R09: ffffed1015d25bd0 [ 67.465636] R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000000 [ 67.472892] R13: 0000000000000037 R14: ffff88808facda50 R15: ffffffffffffffff [ 67.480160] FS: 0000000000ae2880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 67.488366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.494229] CR2: 0000000020200000 CR3: 000000009494d000 CR4: 00000000001406e0 [ 67.501482] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.508736] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.515990] Call Trace: [ 67.518612] __xfrm_policy_check+0x1f8/0x2730 [ 67.523100] ? kasan_check_read+0x11/0x20 [ 67.527232] ? find_held_lock+0x35/0x130 [ 67.531275] ? vti6_tnl_lookup+0x287/0x1020 [ 67.535627] ? __xfrm_route_forward+0x860/0x860 [ 67.540287] ? __lock_is_held+0xb6/0x140 [ 67.544334] ? check_preemption_disabled+0x48/0x290 [ 67.549342] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 67.554771] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.560291] ? vti6_tnl_lookup+0x69a/0x1020 [ 67.564592] ? vti6_init_net+0x820/0x820 [ 67.568636] ? check_preemption_disabled+0x48/0x290 [ 67.573633] vti6_rcv+0x51a/0x970 [ 67.577071] xfrm6_esp_rcv+0xd8/0x230 [ 67.580855] ip6_protocol_deliver_rcu+0x303/0x16c0 [ 67.585765] ? lock_acquire+0x16f/0x3f0 [ 67.589721] ? rcu_softirq_qs+0x10/0x20 [ 67.593674] ip6_input_finish+0x84/0x170 [ 67.597839] ip6_input+0xe4/0x3f0 [ 67.601283] ? ip6_input_finish+0x170/0x170 [ 67.605600] ? ip6_protocol_deliver_rcu+0x16c0/0x16c0 [ 67.610770] ? ipv6_chk_mcast_addr+0x2f2/0x6f0 [ 67.615342] ip6_mc_input+0x4aa/0xf30 [ 67.619131] ? ip6_input+0x3f0/0x3f0 [ 67.622833] ip6_rcv_finish+0x1e7/0x320 [ 67.626864] ipv6_rcv+0x10e/0x420 [ 67.630305] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 67.635043] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 67.640215] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 67.645080] __netif_receive_skb_one_core+0x115/0x1a0 [ 67.650255] ? __netif_receive_skb_core+0x3010/0x3010 [ 67.655437] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.660971] ? check_preemption_disabled+0x48/0x290 [ 67.665980] ? lock_acquire+0x16f/0x3f0 [ 67.669938] __netif_receive_skb+0x2c/0x1c0 [ 67.674254] netif_receive_skb_internal+0x117/0x660 [ 67.679259] ? dev_cpu_dead+0x920/0x920 [ 67.683218] ? eth_gro_receive+0x890/0x890 [ 67.687438] napi_gro_frags+0xade/0xd10 [ 67.691399] tun_get_user+0x2c0e/0x3dd0 [ 67.695362] ? tun_build_skb.isra.0+0x1150/0x1150 [ 67.700189] ? tun_get+0x171/0x290 [ 67.703714] ? lock_downgrade+0x810/0x810 [ 67.707842] ? kasan_check_read+0x11/0x20 [ 67.711980] tun_chr_write_iter+0xbd/0x160 [ 67.716196] do_iter_readv_writev+0x5e0/0x8e0 [ 67.720672] ? vfs_dedupe_file_range+0x780/0x780 [ 67.725406] ? rw_copy_check_uvector+0x2a6/0x330 [ 67.730197] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 67.735723] ? rw_verify_area+0x118/0x360 [ 67.739860] do_iter_write+0x184/0x610 [ 67.743731] ? dup_iter+0x260/0x260 [ 67.747392] vfs_writev+0x1b3/0x2f0 [ 67.751007] ? vfs_iter_write+0xb0/0xb0 [ 67.754970] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.760491] ? __handle_mm_fault+0x7cd/0x3f20 [ 67.764975] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 67.769802] ? find_held_lock+0x35/0x130 [ 67.773871] ? __do_page_fault+0x610/0xd60 [ 67.778100] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.783629] ? __fget_light+0x1a9/0x230 [ 67.787582] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 67.793116] do_writev+0xf6/0x290 [ 67.796552] ? vfs_writev+0x2f0/0x2f0 [ 67.800337] ? do_syscall_64+0x26/0x610 [ 67.804477] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.809829] ? do_syscall_64+0x26/0x610 [ 67.813788] __x64_sys_writev+0x75/0xb0 [ 67.817744] do_syscall_64+0x103/0x610 [ 67.821614] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.826789] RIP: 0033:0x442000 [ 67.829969] Code: 05 48 3d 01 f0 ff ff 0f 83 3d 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 11 90 29 00 00 75 14 b8 14 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0f fc ff c3 48 83 ec 08 e8 7a 2b 00 00 [ 67.848851] RSP: 002b:00007fff6e177148 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 67.856535] RAX: ffffffffffffffda RBX: 00007fff6e177190 RCX: 0000000000442000 [ 67.863784] RDX: 0000000000000001 RSI: 00007fff6e177190 RDI: 00000000000000f0 [ 67.871038] RBP: 0000000000000003 R08: 000000000000bbff R09: 0000000000000000 [ 67.878443] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff6e177160 [ 67.885704] R13: 0000000000403430 R14: 0000000000000000 R15: 0000000000000000 [ 67.892999] Modules linked in: [ 67.896234] ---[ end trace 696ebbc2f0a7bb81 ]--- [ 67.901016] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 67.906275] Code: 7c fc 08 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2e 05 00 00 48 b8 00 00 00 00 00 fc ff df 4f 8b 64 fc 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 01 05 00 00 4d 8b 3c 24 e8 d1 41 5b fb e8 fc 7d [ 67.925194] RSP: 0018:ffff8880894af018 EFLAGS: 00010246 [ 67.930570] RAX: dffffc0000000000 RBX: ffff88808facda40 RCX: ffffffff86026003 [ 67.937822] RDX: 0000000000000000 RSI: ffffffff86026040 RDI: ffff88809707cd88 [ 67.945132] RBP: ffff8880894af040 R08: ffff88808fda2540 R09: ffffed1015d25bd0 [ 67.952414] R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000000 [ 67.959706] R13: 0000000000000037 R14: ffff88808facda50 R15: ffffffffffffffff [ 67.966981] FS: 0000000000ae2880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 67.975218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.981111] CR2: 0000000020200000 CR3: 000000009494d000 CR4: 00000000001406e0 [ 67.988403] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.995670] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.002960] Kernel panic - not syncing: Fatal exception in interrupt [ 68.010367] Kernel Offset: disabled [ 68.014004] Rebooting in 86400 seconds..