[ 67.220304][ T27] audit: type=1800 audit(1577412255.650:25): pid=9100 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 67.240234][ T27] audit: type=1800 audit(1577412255.650:26): pid=9100 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 67.276041][ T27] audit: type=1800 audit(1577412255.650:27): pid=9100 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. [ 67.956191][ T9167] sshd (9167) used greatest stack depth: 22776 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. syzkaller login: [ 78.188590][ T9255] IPVS: ftp: loaded support on port[0] = 21 [ 78.245713][ T9255] chnl_net:caif_netlink_parms(): no params data found [ 78.278506][ T9255] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.285889][ T9255] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.293905][ T9255] device bridge_slave_0 entered promiscuous mode [ 78.302821][ T9255] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.310028][ T9255] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.318078][ T9255] device bridge_slave_1 entered promiscuous mode [ 78.337944][ T9255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.348624][ T9255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.368077][ T9255] team0: Port device team_slave_0 added [ 78.375353][ T9255] team0: Port device team_slave_1 added [ 78.438242][ T9255] device hsr_slave_0 entered promiscuous mode [ 78.476288][ T9255] device hsr_slave_1 entered promiscuous mode [ 78.548614][ T9255] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.588985][ T9255] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.648560][ T9255] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.698482][ T9255] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.747405][ T9255] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.754586][ T9255] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.762332][ T9255] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.769402][ T9255] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.807698][ T9255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.822502][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.843200][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.861482][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.870700][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.882890][ T9255] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.893557][ T3034] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.902035][ T3034] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.909092][ T3034] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.920643][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.929906][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.937007][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.958328][ T3294] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.967584][ T3294] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.978643][ T3294] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.988348][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.001404][ T9255] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.013698][ T9255] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.023117][ T3294] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.044376][ T9255] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.052535][ T9257] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 79.060560][ T9257] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.072527][ T9255] ------------[ cut here ]------------ [ 79.078092][ T9255] hsr_addr_subst_dest: Unknown node [ 79.083672][ T9255] WARNING: CPU: 1 PID: 9255 at net/hsr/hsr_framereg.c:303 hsr_addr_subst_dest+0x382/0x460 [ 79.093534][ T9255] Kernel panic - not syncing: panic_on_warn set ... [ 79.100105][ T9255] CPU: 1 PID: 9255 Comm: syz-executor979 Not tainted 5.5.0-rc2-next-20191220-syzkaller #0 [ 79.109971][ T9255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.120010][ T9255] Call Trace: [ 79.123281][ T9255] dump_stack+0x197/0x210 [ 79.127595][ T9255] ? hsr_addr_subst_dest+0x370/0x460 [ 79.132863][ T9255] panic+0x2e3/0x75c [ 79.136788][ T9255] ? add_taint.cold+0x16/0x16 [ 79.141485][ T9255] ? __kasan_check_write+0x14/0x20 [ 79.146574][ T9255] ? __warn.cold+0x14/0x3e [ 79.150967][ T9255] ? __warn+0xd9/0x1cf [ 79.155025][ T9255] ? hsr_addr_subst_dest+0x382/0x460 [ 79.160294][ T9255] __warn.cold+0x2f/0x3e [ 79.164518][ T9255] ? hsr_addr_subst_dest+0x382/0x460 [ 79.169781][ T9255] report_bug+0x289/0x300 [ 79.174101][ T9255] do_error_trap+0x11b/0x200 [ 79.178677][ T9255] do_invalid_op+0x37/0x50 [ 79.183075][ T9255] ? hsr_addr_subst_dest+0x382/0x460 [ 79.188345][ T9255] invalid_op+0x23/0x30 [ 79.192484][ T9255] RIP: 0010:hsr_addr_subst_dest+0x382/0x460 [ 79.198377][ T9255] Code: 89 de e8 e1 77 b1 f9 84 db 75 d3 e8 98 76 b1 f9 48 c7 c6 80 14 f6 88 48 c7 c7 40 14 f6 88 c6 05 21 04 b9 02 01 e8 ad fc 81 f9 <0f> 0b eb b0 e8 75 76 b1 f9 0f b6 1d 0d 04 b9 02 31 ff 89 de e8 a5 [ 79.217979][ T9255] RSP: 0018:ffffc90001ea7540 EFLAGS: 00010282 [ 79.224025][ T9255] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.231991][ T9255] RDX: 0000000000000000 RSI: ffffffff815e9f66 RDI: fffff520003d4e9a [ 79.239946][ T9255] RBP: ffffc90001ea7580 R08: ffff88809bcca040 R09: ffffed1015d245c9 [ 79.247900][ T9255] R10: ffffed1015d245c8 R11: ffff8880ae922e43 R12: ffff88809a240ba0 [ 79.255851][ T9255] R13: 0000000000000000 R14: 0000000065cafe56 R15: 0000000000000000 [ 79.263833][ T9255] ? vprintk_func+0x86/0x189 [ 79.268414][ T9255] hsr_forward_skb+0x138b/0x1d30 [ 79.273439][ T9255] hsr_dev_xmit+0x7d/0xe0 [ 79.277758][ T9255] dev_hard_start_xmit+0x1a3/0x9b0 [ 79.282850][ T9255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 79.289073][ T9255] __dev_queue_xmit+0x2ad3/0x35c0 [ 79.294078][ T9255] ? find_held_lock+0x35/0x130 [ 79.298834][ T9255] ? __might_fault+0x12b/0x1e0 [ 79.303581][ T9255] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 79.308848][ T9255] ? lock_downgrade+0x920/0x920 [ 79.313689][ T9255] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 79.319909][ T9255] ? iov_iter_advance+0x29a/0xe20 [ 79.324921][ T9255] dev_queue_xmit+0x18/0x20 [ 79.329406][ T9255] ? dev_queue_xmit+0x18/0x20 [ 79.334075][ T9255] pppoe_sendmsg+0x65e/0x7f0 [ 79.338647][ T9255] ? __delete_item+0x370/0x370 [ 79.343671][ T9255] ? apparmor_socket_sendmsg+0x2a/0x30 [ 79.349126][ T9255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 79.355363][ T9255] ? security_socket_sendmsg+0x8d/0xc0 [ 79.361329][ T9255] ? __delete_item+0x370/0x370 [ 79.366081][ T9255] sock_sendmsg+0xd7/0x130 [ 79.370482][ T9255] ____sys_sendmsg+0x358/0x880 [ 79.375249][ T9255] ? kernel_sendmsg+0x50/0x50 [ 79.379909][ T9255] ? __lock_acquire+0x16f2/0x4a00 [ 79.384919][ T9255] ___sys_sendmsg+0x100/0x170 [ 79.389586][ T9255] ? mark_held_locks+0xf0/0xf0 [ 79.394331][ T9255] ? sendmsg_copy_msghdr+0x70/0x70 [ 79.399463][ T9255] ? __lock_acquire+0x29c9/0x4a00 [ 79.404470][ T9255] ? release_sock+0x20/0x1c0 [ 79.409046][ T9255] ? reacquire_held_locks+0x208/0x510 [ 79.414937][ T9255] ? release_sock+0x156/0x1c0 [ 79.419597][ T9255] ? find_held_lock+0x35/0x130 [ 79.424341][ T9255] ? release_sock+0x156/0x1c0 [ 79.429001][ T9255] ? __local_bh_enable_ip+0x15a/0x270 [ 79.434355][ T9255] ? _raw_spin_unlock_bh+0x2c/0x30 [ 79.439495][ T9255] ? __local_bh_enable_ip+0x15a/0x270 [ 79.444894][ T9255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 79.451173][ T9255] ? __fget_light+0x1a9/0x230 [ 79.455850][ T9255] ? __fdget+0x1b/0x20 [ 79.459965][ T9255] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 79.466203][ T9255] ? sockfd_lookup_light+0xcb/0x180 [ 79.471386][ T9255] __sys_sendmmsg+0x1bf/0x4d0 [ 79.476054][ T9255] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 79.481080][ T9255] ? move_addr_to_kernel.part.0+0xcd/0x110 [ 79.486911][ T9255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 79.493477][ T9255] ? __sys_connect+0x11d/0x1b0 [ 79.498225][ T9255] ? __sys_connect_file+0x1c0/0x1c0 [ 79.503408][ T9255] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 79.509636][ T9255] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 79.515076][ T9255] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 79.520516][ T9255] ? do_syscall_64+0x26/0x790 [ 79.525170][ T9255] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.531230][ T9255] ? do_syscall_64+0x26/0x790 [ 79.535990][ T9255] __x64_sys_sendmmsg+0x9d/0x100 [ 79.541528][ T9255] do_syscall_64+0xfa/0x790 [ 79.546274][ T9255] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.552147][ T9255] RIP: 0033:0x441fa9 [ 79.556029][ T9255] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 79.575629][ T9255] RSP: 002b:00007ffd6f358c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 79.584018][ T9255] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441fa9 [ 79.591973][ T9255] RDX: 04000000000000eb RSI: 000000002000d180 RDI: 0000000000000003 [ 79.599927][ T9255] RBP: 0000000000000004 R08: 0000000000000025 R09: 0000000000000025 [ 79.607877][ T9255] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 79.615829][ T9255] R13: 0000000000403520 R14: 0000000000000000 R15: 0000000000000000 [ 79.625184][ T9255] Kernel Offset: disabled [ 79.629589][ T9255] Rebooting in 86400 seconds..