[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.400015][ T26] audit: type=1800 audit(1554914381.380:25): pid=7756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.437101][ T26] audit: type=1800 audit(1554914381.380:26): pid=7756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.466291][ T26] audit: type=1800 audit(1554914381.380:27): pid=7756 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 '10.128.0.252' (ECDSA) to the list of known hosts. syzkaller login: [ 58.698264][ T7909] IPVS: ftp: loaded support on port[0] = 21 [ 58.761436][ T7909] chnl_net:caif_netlink_parms(): no params data found [ 58.795966][ T7909] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.811682][ T7909] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.819860][ T7909] device bridge_slave_0 entered promiscuous mode [ 58.829226][ T7909] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.836750][ T7909] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.844685][ T7909] device bridge_slave_1 entered promiscuous mode [ 58.862265][ T7909] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 58.872221][ T7909] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 58.892581][ T7909] team0: Port device team_slave_0 added [ 58.900301][ T7909] team0: Port device team_slave_1 added [ 58.960636][ T7909] device hsr_slave_0 entered promiscuous mode [ 59.028300][ T7909] device hsr_slave_1 entered promiscuous mode [ 59.106225][ T7909] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.114331][ T7909] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.122636][ T7909] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.129866][ T7909] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.163168][ T7909] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.175740][ T2860] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.187484][ T2860] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.196239][ T2860] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.204386][ T2860] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 59.217055][ T7909] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.239969][ T7912] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.249042][ T7912] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.256300][ T7912] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.264343][ T7912] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.273547][ T7912] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.280668][ T7912] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.289450][ T7912] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.298150][ T7912] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.307465][ T7912] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.318505][ T2860] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.332284][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.343320][ T7909] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 59.363339][ T7909] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.378995][ T7909] kasan: CONFIG_KASAN_INLINE enabled [ 59.384572][ T7909] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 59.392799][ T7909] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 59.399753][ T7909] CPU: 0 PID: 7909 Comm: syz-executor087 Not tainted 5.1.0-rc4+ #131 [ 59.407801][ T7909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.417915][ T7909] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 59.423922][ T7909] 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 a7 4d fb e8 5c fb [ 59.443662][ T7909] RSP: 0018:ffff88808847f108 EFLAGS: 00010246 [ 59.449741][ T7909] RAX: dffffc0000000000 RBX: ffff88809fb8c040 RCX: ffffffff86109283 [ 59.457747][ T7909] RDX: 0000000000000000 RSI: ffffffff861092c0 RDI: ffff888086768f08 [ 59.465713][ T7909] RBP: ffff88808847f130 R08: ffff8880a9076400 R09: ffffed1015d05bc0 [ 59.473678][ T7909] R10: ffffed1015d05bbf R11: ffff8880ae82ddfb R12: 0000000000000000 [ 59.481866][ T7909] R13: 0000000000000037 R14: ffff88809fb8c050 R15: ffffffffffffffff [ 59.489929][ T7909] FS: 0000000002589880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 59.498844][ T7909] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.505790][ T7909] CR2: 0000000020000000 CR3: 00000000941ba000 CR4: 00000000001406f0 [ 59.513758][ T7909] Call Trace: [ 59.517050][ T7909] __xfrm_policy_check+0x1f8/0x2730 [ 59.522370][ T7909] ? find_held_lock+0x35/0x130 [ 59.527143][ T7909] ? vti6_tnl_lookup+0x287/0x1020 [ 59.532170][ T7909] ? __xfrm_route_forward+0x840/0x840 [ 59.537557][ T7909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.543813][ T7909] ? vti6_tnl_lookup+0x69a/0x1020 [ 59.548851][ T7909] ? vti6_init_net+0x820/0x820 [ 59.553626][ T7909] vti6_rcv+0x51a/0x970 [ 59.557774][ T7909] xfrm6_esp_rcv+0xd8/0x230 [ 59.562397][ T7909] ip6_protocol_deliver_rcu+0x303/0x16c0 [ 59.568198][ T7909] ? lock_acquire+0x16f/0x3f0 [ 59.572866][ T7909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.579134][ T7909] ? rcu_dynticks_curr_cpu_in_eqs+0x10/0xb0 [ 59.585027][ T7909] ip6_input_finish+0x84/0x170 [ 59.589784][ T7909] ip6_input+0xe4/0x3f0 [ 59.593933][ T7909] ? ip6_input_finish+0x170/0x170 [ 59.598951][ T7909] ? ip6_protocol_deliver_rcu+0x16c0/0x16c0 [ 59.605405][ T7909] ip6_rcv_finish+0x1e7/0x320 [ 59.610342][ T7909] ipv6_rcv+0x10e/0x420 [ 59.614488][ T7909] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 59.619961][ T7909] ? ip6_rcv_finish_core.isra.0+0x590/0x590 [ 59.625850][ T7909] ? mark_held_locks+0xf0/0xf0 [ 59.630633][ T7909] ? ip6_rcv_core.isra.0+0x1c00/0x1c00 [ 59.636243][ T7909] __netif_receive_skb_one_core+0x115/0x1a0 [ 59.643459][ T7909] ? __netif_receive_skb_core+0x3040/0x3040 [ 59.649350][ T7909] ? lock_acquire+0x16f/0x3f0 [ 59.654039][ T7909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.660668][ T7909] __netif_receive_skb+0x2c/0x1d0 [ 59.665702][ T7909] netif_receive_skb_internal+0x117/0x5c0 [ 59.671424][ T7909] ? dev_cpu_dead+0x920/0x920 [ 59.676127][ T7909] ? eth_gro_receive+0x890/0x890 [ 59.681081][ T7909] napi_gro_frags+0xade/0xd10 [ 59.685806][ T7909] tun_get_user+0x2f24/0x3fb0 [ 59.690508][ T7909] ? __schedule+0x81f/0x1cc0 [ 59.695100][ T7909] ? tun_build_skb.isra.0+0x12f0/0x12f0 [ 59.700769][ T7909] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 59.706541][ T7909] ? retint_kernel+0x2d/0x2d [ 59.711156][ T7909] tun_chr_write_iter+0xbd/0x156 [ 59.716123][ T7909] do_iter_readv_writev+0x5e1/0x8e0 [ 59.721316][ T7909] ? vfs_dedupe_file_range+0x780/0x780 [ 59.726815][ T7909] ? apparmor_file_permission+0x25/0x30 [ 59.732362][ T7909] ? rw_verify_area+0x118/0x360 [ 59.737229][ T7909] do_iter_write+0x184/0x610 [ 59.742830][ T7909] ? dup_iter+0x260/0x260 [ 59.747227][ T7909] vfs_writev+0x1b3/0x2f0 [ 59.751569][ T7909] ? vfs_iter_write+0xb0/0xb0 [ 59.756250][ T7909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.762520][ T7909] ? __handle_mm_fault+0x7cd/0x3ec0 [ 59.767930][ T7909] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 59.773752][ T7909] ? find_held_lock+0x35/0x130 [ 59.778819][ T7909] ? __do_page_fault+0x623/0xda0 [ 59.783880][ T7909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.790172][ T7909] ? __fget_light+0x1a9/0x230 [ 59.794871][ T7909] do_writev+0x15e/0x370 [ 59.799109][ T7909] ? vfs_writev+0x2f0/0x2f0 [ 59.803703][ T7909] ? do_syscall_64+0x26/0x610 [ 59.808396][ T7909] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.814477][ T7909] ? do_syscall_64+0x26/0x610 [ 59.819155][ T7909] __x64_sys_writev+0x75/0xb0 [ 59.823982][ T7909] do_syscall_64+0x103/0x610 [ 59.828571][ T7909] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.834470][ T7909] RIP: 0033:0x442060 [ 59.838704][ T7909] 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 b1 8f 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 [ 59.861618][ T7909] RSP: 002b:00007ffd816171c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 59.871122][ T7909] RAX: ffffffffffffffda RBX: 00007ffd81617210 RCX: 0000000000442060 [ 59.879102][ T7909] RDX: 0000000000000001 RSI: 00007ffd81617210 RDI: 00000000000000f0 [ 59.887083][ T7909] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 59.895066][ T7909] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd816171e0 [ 59.903053][ T7909] R13: 0000000000403490 R14: 0000000000000000 R15: 0000000000000000 [ 59.911941][ T7909] Modules linked in: [ 59.915950][ T7909] ---[ end trace 1de73d31d1369ff3 ]--- [ 59.921619][ T7909] RIP: 0010:xfrmi_decode_session+0x15c/0x6c0 [ 59.927813][ T7909] 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 a7 4d fb e8 5c fb [ 59.947679][ T7909] RSP: 0018:ffff88808847f108 EFLAGS: 00010246 [ 59.953888][ T7909] RAX: dffffc0000000000 RBX: ffff88809fb8c040 RCX: ffffffff86109283 [ 59.961916][ T7909] RDX: 0000000000000000 RSI: ffffffff861092c0 RDI: ffff888086768f08 [ 59.969941][ T7909] RBP: ffff88808847f130 R08: ffff8880a9076400 R09: ffffed1015d05bc0 [ 59.977980][ T7909] R10: ffffed1015d05bbf R11: ffff8880ae82ddfb R12: 0000000000000000 [ 59.986083][ T7909] R13: 0000000000000037 R14: ffff88809fb8c050 R15: ffffffffffffffff [ 59.994154][ T7909] FS: 0000000002589880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 60.003154][ T7909] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.009960][ T7909] CR2: 0000000020000000 CR3: 00000000941ba000 CR4: 00000000001406f0 [ 60.019498][ T7909] Kernel panic - not syncing: Fatal exception in interrupt [ 60.028482][ T7909] Kernel Offset: disabled [ 60.033197][ T7909] Rebooting in 86400 seconds..