[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 116.932917][ T8424] bash (8424) used greatest stack depth: 4048 bytes left Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts. 2020/09/06 18:52:00 fuzzer started 2020/09/06 18:52:01 dialing manager at 10.128.0.26:46153 2020/09/06 18:52:01 syscalls: 3166 2020/09/06 18:52:01 code coverage: enabled 2020/09/06 18:52:01 comparison tracing: enabled 2020/09/06 18:52:01 extra coverage: enabled 2020/09/06 18:52:01 setuid sandbox: enabled 2020/09/06 18:52:01 namespace sandbox: enabled 2020/09/06 18:52:01 Android sandbox: /sys/fs/selinux/policy does not exist 2020/09/06 18:52:01 fault injection: enabled 2020/09/06 18:52:01 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/09/06 18:52:01 net packet injection: enabled 2020/09/06 18:52:01 net device setup: enabled 2020/09/06 18:52:01 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/09/06 18:52:01 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/09/06 18:52:01 USB emulation: enabled 2020/09/06 18:52:01 hci packet injection: enabled 18:56:36 executing program 0: perf_event_open(&(0x7f0000000180)={0x0, 0x70, 0x3, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = mmap$IORING_OFF_CQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x2, 0x4020032, 0xffffffffffffffff, 0x8000000) syz_io_uring_setup(0x0, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ffc000/0x1000)=nil, &(0x7f00000001c0), 0x0) syz_io_uring_submit(r0, 0x0, 0x0, 0x0) [ 407.632699][ T8474] IPVS: ftp: loaded support on port[0] = 21 [ 408.013764][ T8474] chnl_net:caif_netlink_parms(): no params data found [ 408.130667][ T8474] bridge0: port 1(bridge_slave_0) entered blocking state [ 408.139041][ T8474] bridge0: port 1(bridge_slave_0) entered disabled state [ 408.148408][ T8474] device bridge_slave_0 entered promiscuous mode [ 408.163228][ T8474] bridge0: port 2(bridge_slave_1) entered blocking state [ 408.170714][ T8474] bridge0: port 2(bridge_slave_1) entered disabled state [ 408.180101][ T8474] device bridge_slave_1 entered promiscuous mode [ 408.232471][ T8474] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 408.250255][ T8474] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 408.300932][ T8474] team0: Port device team_slave_0 added [ 408.315645][ T8474] team0: Port device team_slave_1 added [ 408.358039][ T8474] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 408.365390][ T8474] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 408.391608][ T8474] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 408.408211][ T8474] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 408.416322][ T8474] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 408.442457][ T8474] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 408.497812][ T8474] device hsr_slave_0 entered promiscuous mode [ 408.506555][ T8474] device hsr_slave_1 entered promiscuous mode [ 408.782983][ T8474] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 408.817479][ T8474] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 408.854586][ T8474] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 408.870573][ T8474] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 409.002918][ T8474] bridge0: port 2(bridge_slave_1) entered blocking state [ 409.010288][ T8474] bridge0: port 2(bridge_slave_1) entered forwarding state [ 409.018220][ T8474] bridge0: port 1(bridge_slave_0) entered blocking state [ 409.025581][ T8474] bridge0: port 1(bridge_slave_0) entered forwarding state [ 409.049012][ T4599] bridge0: port 1(bridge_slave_0) entered disabled state [ 409.067263][ T4599] bridge0: port 2(bridge_slave_1) entered disabled state [ 409.216546][ T8474] 8021q: adding VLAN 0 to HW filter on device bond0 [ 409.248170][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 409.257729][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 409.280917][ T8474] 8021q: adding VLAN 0 to HW filter on device team0 [ 409.304120][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 409.313580][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 409.323586][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 409.330822][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 409.358077][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 409.367481][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 409.376697][ T3219] bridge0: port 2(bridge_slave_1) entered blocking state [ 409.384007][ T3219] bridge0: port 2(bridge_slave_1) entered forwarding state [ 409.416944][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 409.427687][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 409.467291][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 409.477550][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 409.487645][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 409.498047][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 409.504522][ T12] Bluetooth: hci0: command 0x0409 tx timeout [ 409.507914][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 409.521167][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 409.549986][ T8474] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 409.563002][ T8474] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 409.594749][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 409.604170][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 409.613401][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 409.646912][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 409.654547][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 409.673983][ T8474] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 409.734987][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 409.744718][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 409.797281][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 409.806580][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 409.830798][ T8474] device veth0_vlan entered promiscuous mode [ 409.840120][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 409.849437][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 409.882893][ T8474] device veth1_vlan entered promiscuous mode [ 409.952100][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 409.960626][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 409.969774][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 409.979377][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 410.000809][ T8474] device veth0_macvtap entered promiscuous mode [ 410.021877][ T8474] device veth1_macvtap entered promiscuous mode [ 410.057024][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 410.065781][ T3219] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 410.096434][ T8474] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 410.116053][ T8474] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 410.123430][ T8686] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 410.132840][ T8686] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 410.143032][ T8686] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 410.153292][ T8686] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 18:56:40 executing program 0: r0 = socket$inet6(0xa, 0x5, 0x0) setsockopt$inet6_mreq(r0, 0x29, 0x39, &(0x7f00000040c0)={@mcast2}, 0x14) 18:56:40 executing program 0: r0 = syz_open_dev$vivid(&(0x7f0000000000)='/dev/video#\x00', 0x3, 0x2) ioctl$VIDIOC_QUERYBUF(r0, 0xc050565d, &(0x7f0000000000)={0x0, 0x0, 0x4, 0x0, 0x0, {}, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, "8c3223cf"}, 0x0, 0x0, @userptr}) 18:56:41 executing program 0: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$l2tp(&(0x7f0000000140)='l2tp\x00') gettid() r1 = perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0x5e3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_SET_FILTER(r1, 0x40082406, &(0x7f0000000880)='cpu&3\x00\x00\x00\x00\x00\xc8 \xf4\xb3\xca\f\x90|\x0ff\xf0\xd2\x9ba\xfd\xe8eq*\xeb\x00\xb5x\x7fV-W\xeb\x9c\xf5\xe5 d\x99]O\x13\x99uJ\xbd\xefe\x83\xc2\x17~\x9e\\\xac\x1f\x93\x00\x00\x00\x80\x00)\x8e8P2g\x10\x19\xad\x92P\xea\x8f\xd4\x16\xec!6\x81\x01\xe6\x9abl\x00\x00\x00\x00\x00\x00\x00\x00') ioctl$PERF_EVENT_IOC_SET_FILTER(0xffffffffffffffff, 0x40082406, &(0x7f0000000000)='cpu&3\x00\x00\x00\x00\x00\xc8 \xf4\xb3\xca\f\x90|\x0ff\xf0\xd2\x9ba\xfd\xe8eq*\xeb\x00\xb5x\x7fV-W\xeb\x9c\xf5\xe5 d\x99]O\x13\x99uJ\xbd\xefe\x83\xc2\x17~\x9e\\\xac\x1f\x93\x00\x00\x00\x80\x00)\x8e8P2g\x10\x19\xad\x92P\xea\x8f\xd4\x16\xec!6\x81\x01\xe6\x9abl\x00') sendmsg$L2TP_CMD_TUNNEL_CREATE(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={0x0}}, 0x0) [ 411.203462][ C0] hrtimer: interrupt took 47618 ns 18:56:41 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_ifreq(r0, 0x89f0, &(0x7f0000000040)={'tunl0\x00', @ifru_mtu=0x531101}) socket$packet(0x11, 0x3, 0x300) r1 = socket(0x11, 0x3, 0x0) sendmsg$kcm(r1, &(0x7f0000000180)={&(0x7f0000000000)=@qipcrtr={0x2a, 0x3}, 0x80, &(0x7f00000002c0)=[{&(0x7f0000000080)="5e98006fb3deffc335b6865bac14140be0", 0x11}], 0x1}, 0x0) [ 411.345440][ T8708] ===================================================== [ 411.352482][ T8708] BUG: KMSAN: uninit-value in ip_check_mc_rcu+0x340/0x840 [ 411.359604][ T8708] CPU: 0 PID: 8708 Comm: syz-executor.0 Not tainted 5.8.0-rc5-syzkaller #0 [ 411.368190][ T8708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 411.378244][ T8708] Call Trace: [ 411.381615][ T8708] dump_stack+0x21c/0x280 [ 411.385999][ T8708] kmsan_report+0xf7/0x1e0 [ 411.390419][ T8708] __msan_warning+0x58/0xa0 [ 411.394922][ T8708] ip_check_mc_rcu+0x340/0x840 [ 411.399743][ T8708] __mkroute_output+0x6a6/0x2860 [ 411.404689][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.409903][ T8708] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 411.415761][ T8708] ? __ip_dev_find+0x6af/0x770 [ 411.420562][ T8708] ? packet_sendmsg+0x84c0/0x9a80 [ 411.425598][ T8708] ip_route_output_key_hash_rcu+0x1eb4/0x2000 [ 411.431672][ T8708] ip_route_output_flow+0x211/0x420 [ 411.436887][ T8708] ip_tunnel_xmit+0x1772/0x3aa0 [ 411.441835][ T8708] ipgre_xmit+0x12a2/0x13c0 [ 411.446354][ T8708] ? ipgre_close+0x280/0x280 [ 411.450981][ T8708] xmit_one+0x3cf/0x750 [ 411.455139][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.460360][ T8708] __dev_queue_xmit+0x3aad/0x4470 [ 411.465403][ T8708] dev_queue_xmit+0x4b/0x60 [ 411.469902][ T8708] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 411.475208][ T8708] packet_sendmsg+0x8542/0x9a80 [ 411.480065][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.485273][ T8708] ? kmsan_internal_set_origin+0x75/0xb0 [ 411.490909][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.496112][ T8708] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 411.501950][ T8708] ? cpu_partial_store+0xe0/0x260 [ 411.507024][ T8708] ? aa_sk_perm+0x7da/0xe70 [ 411.511602][ T8708] ____sys_sendmsg+0xc82/0x1240 [ 411.516478][ T8708] ? compat_packet_setsockopt+0x3c0/0x3c0 [ 411.522208][ T8708] __sys_sendmsg+0x6d1/0x840 [ 411.526824][ T8708] ? kmsan_copy_to_user+0x81/0x90 [ 411.531859][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.537075][ T8708] __se_sys_sendmsg+0x97/0xb0 [ 411.541763][ T8708] __x64_sys_sendmsg+0x4a/0x70 [ 411.546594][ T8708] do_syscall_64+0xad/0x160 [ 411.551141][ T8708] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 411.557032][ T8708] RIP: 0033:0x45d5b9 [ 411.560920][ T8708] Code: Bad RIP value. [ 411.564983][ T8708] RSP: 002b:00007f2932958c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 411.573482][ T8708] RAX: ffffffffffffffda RBX: 000000000002ccc0 RCX: 000000000045d5b9 [ 411.575356][ T3219] Bluetooth: hci0: command 0x041b tx timeout [ 411.581467][ T8708] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 [ 411.581477][ T8708] RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 [ 411.581488][ T8708] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c [ 411.581498][ T8708] R13: 000000000169fb6f R14: 00007f29329599c0 R15: 000000000118cf4c [ 411.581514][ T8708] [ 411.581547][ T8708] Uninit was stored to memory at: [ 411.626677][ T8708] kmsan_internal_chain_origin+0xad/0x130 [ 411.632390][ T8708] __msan_chain_origin+0x50/0x90 [ 411.637341][ T8708] ip_tunnel_xmit+0xe3d/0x3aa0 [ 411.642100][ T8708] ipgre_xmit+0x12a2/0x13c0 [ 411.646604][ T8708] xmit_one+0x3cf/0x750 [ 411.650758][ T8708] __dev_queue_xmit+0x3aad/0x4470 [ 411.655773][ T8708] dev_queue_xmit+0x4b/0x60 [ 411.660274][ T8708] packet_sendmsg+0x8542/0x9a80 [ 411.665141][ T8708] ____sys_sendmsg+0xc82/0x1240 [ 411.669987][ T8708] __sys_sendmsg+0x6d1/0x840 [ 411.674569][ T8708] __se_sys_sendmsg+0x97/0xb0 [ 411.679260][ T8708] __x64_sys_sendmsg+0x4a/0x70 [ 411.684026][ T8708] do_syscall_64+0xad/0x160 [ 411.688542][ T8708] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 411.694420][ T8708] [ 411.696766][ T8708] Uninit was stored to memory at: [ 411.701797][ T8708] kmsan_internal_chain_origin+0xad/0x130 [ 411.707543][ T8708] kmsan_memcpy_memmove_metadata+0x272/0x2e0 [ 411.713533][ T8708] kmsan_memcpy_metadata+0xb/0x10 [ 411.718558][ T8708] __msan_memcpy+0x43/0x50 [ 411.722976][ T8708] pskb_expand_head+0x3fd/0x1e30 [ 411.727912][ T8708] ipgre_xmit+0x88c/0x13c0 [ 411.732331][ T8708] xmit_one+0x3cf/0x750 [ 411.736489][ T8708] __dev_queue_xmit+0x3aad/0x4470 [ 411.741515][ T8708] dev_queue_xmit+0x4b/0x60 [ 411.746015][ T8708] packet_sendmsg+0x8542/0x9a80 [ 411.750853][ T8708] ____sys_sendmsg+0xc82/0x1240 [ 411.755695][ T8708] __sys_sendmsg+0x6d1/0x840 [ 411.760284][ T8708] __se_sys_sendmsg+0x97/0xb0 [ 411.764972][ T8708] __x64_sys_sendmsg+0x4a/0x70 [ 411.769733][ T8708] do_syscall_64+0xad/0x160 [ 411.774240][ T8708] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 411.780116][ T8708] [ 411.782441][ T8708] Uninit was created at: [ 411.786684][ T8708] kmsan_internal_poison_shadow+0x66/0xd0 [ 411.792400][ T8708] kmsan_slab_alloc+0x8a/0xe0 [ 411.797127][ T8708] __kmalloc_node_track_caller+0xeab/0x12e0 [ 411.803025][ T8708] __alloc_skb+0x35f/0xb30 [ 411.807453][ T8708] alloc_skb_with_frags+0x1f2/0xc10 [ 411.812645][ T8708] sock_alloc_send_pskb+0xc83/0xe50 [ 411.817840][ T8708] packet_sendmsg+0x6abb/0x9a80 [ 411.822685][ T8708] ____sys_sendmsg+0xc82/0x1240 [ 411.827532][ T8708] __sys_sendmsg+0x6d1/0x840 [ 411.832123][ T8708] __se_sys_sendmsg+0x97/0xb0 [ 411.836802][ T8708] __x64_sys_sendmsg+0x4a/0x70 [ 411.841571][ T8708] do_syscall_64+0xad/0x160 [ 411.846083][ T8708] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 411.851975][ T8708] ===================================================== [ 411.858894][ T8708] Disabling lock debugging due to kernel taint [ 411.865044][ T8708] Kernel panic - not syncing: panic_on_warn set ... [ 411.871633][ T8708] CPU: 0 PID: 8708 Comm: syz-executor.0 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 411.881716][ T8708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 411.891850][ T8708] Call Trace: [ 411.895143][ T8708] dump_stack+0x21c/0x280 [ 411.899597][ T8708] panic+0x4d7/0xef7 [ 411.903514][ T8708] ? add_taint+0x17c/0x210 [ 411.907945][ T8708] kmsan_report+0x1df/0x1e0 [ 411.912457][ T8708] __msan_warning+0x58/0xa0 [ 411.916968][ T8708] ip_check_mc_rcu+0x340/0x840 [ 411.921744][ T8708] __mkroute_output+0x6a6/0x2860 [ 411.926688][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.931897][ T8708] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 411.937900][ T8708] ? __ip_dev_find+0x6af/0x770 [ 411.942675][ T8708] ? packet_sendmsg+0x84c0/0x9a80 [ 411.947709][ T8708] ip_route_output_key_hash_rcu+0x1eb4/0x2000 [ 411.953892][ T8708] ip_route_output_flow+0x211/0x420 [ 411.959128][ T8708] ip_tunnel_xmit+0x1772/0x3aa0 [ 411.964024][ T8708] ipgre_xmit+0x12a2/0x13c0 [ 411.968634][ T8708] ? ipgre_close+0x280/0x280 [ 411.973226][ T8708] xmit_one+0x3cf/0x750 [ 411.977388][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 411.982587][ T8708] __dev_queue_xmit+0x3aad/0x4470 [ 411.987625][ T8708] dev_queue_xmit+0x4b/0x60 [ 411.992122][ T8708] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 411.997414][ T8708] packet_sendmsg+0x8542/0x9a80 [ 412.002269][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 412.007523][ T8708] ? kmsan_internal_set_origin+0x75/0xb0 [ 412.013157][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 412.018358][ T8708] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 412.024163][ T8708] ? cpu_partial_store+0xe0/0x260 [ 412.029197][ T8708] ? aa_sk_perm+0x7da/0xe70 [ 412.033728][ T8708] ____sys_sendmsg+0xc82/0x1240 [ 412.038595][ T8708] ? compat_packet_setsockopt+0x3c0/0x3c0 [ 412.044321][ T8708] __sys_sendmsg+0x6d1/0x840 [ 412.048932][ T8708] ? kmsan_copy_to_user+0x81/0x90 [ 412.053960][ T8708] ? kmsan_get_metadata+0x116/0x180 [ 412.059188][ T8708] __se_sys_sendmsg+0x97/0xb0 [ 412.063871][ T8708] __x64_sys_sendmsg+0x4a/0x70 [ 412.068639][ T8708] do_syscall_64+0xad/0x160 [ 412.073146][ T8708] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 412.079034][ T8708] RIP: 0033:0x45d5b9 [ 412.082916][ T8708] Code: Bad RIP value. [ 412.086979][ T8708] RSP: 002b:00007f2932958c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 412.095389][ T8708] RAX: ffffffffffffffda RBX: 000000000002ccc0 RCX: 000000000045d5b9 [ 412.103359][ T8708] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 [ 412.111320][ T8708] RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 [ 412.119306][ T8708] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c [ 412.127280][ T8708] R13: 000000000169fb6f R14: 00007f29329599c0 R15: 000000000118cf4c [ 412.136617][ T8708] Kernel Offset: disabled [ 412.140940][ T8708] Rebooting in 86400 seconds..