[ OK ] Started Permit User Sessions. [ OK ] Found device /dev/ttyS0. [ OK ] Started System Logging Service. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ *** ] A start job is running for OpenBSD …Shell server (1min 18s / 2min 37s)[*** ] A start job is running for OpenBSD …Shell server (1min 19s / 2min 37s)[** ] A start job is running for OpenBSD …Shell server (1min 19s / 2min 37s)[* ] A start job is running for OpenBSD …Shell server (1min 20s / 2min 37s)[** ] A start job is running for OpenBSD …Shell server (1min 22s / 2min 50s)[ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.4' (ECDSA) to the list of known hosts. syzkaller login: [ 129.886396][ T8223] IPVS: ftp: loaded support on port[0] = 21 [ 130.043782][ T8223] chnl_net:caif_netlink_parms(): no params data found [ 130.125940][ T8223] bridge0: port 1(bridge_slave_0) entered blocking state [ 130.133904][ T8223] bridge0: port 1(bridge_slave_0) entered disabled state [ 130.142253][ T8223] device bridge_slave_0 entered promiscuous mode [ 130.155277][ T8223] bridge0: port 2(bridge_slave_1) entered blocking state [ 130.162611][ T8223] bridge0: port 2(bridge_slave_1) entered disabled state [ 130.172031][ T8223] device bridge_slave_1 entered promiscuous mode [ 130.204430][ T8223] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 130.217371][ T8223] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 130.249483][ T8223] team0: Port device team_slave_0 added [ 130.258580][ T8223] team0: Port device team_slave_1 added [ 130.286320][ T8223] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 130.293506][ T8223] 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. [ 130.319729][ T8223] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 130.333025][ T8223] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 130.340356][ T8223] 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. [ 130.366939][ T8223] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 130.408473][ T8223] device hsr_slave_0 entered promiscuous mode [ 130.415960][ T8223] device hsr_slave_1 entered promiscuous mode [ 130.580621][ T8223] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 130.597958][ T8223] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 130.614174][ T8223] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 130.630798][ T8223] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 130.802646][ T8223] bridge0: port 2(bridge_slave_1) entered blocking state [ 130.809977][ T8223] bridge0: port 2(bridge_slave_1) entered forwarding state [ 130.817934][ T8223] bridge0: port 1(bridge_slave_0) entered blocking state [ 130.825549][ T8223] bridge0: port 1(bridge_slave_0) entered forwarding state [ 130.900639][ T8223] 8021q: adding VLAN 0 to HW filter on device bond0 [ 130.920355][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 130.930274][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 130.941341][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 130.951699][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 130.970015][ T8223] 8021q: adding VLAN 0 to HW filter on device team0 [ 130.988323][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 130.997703][ T3545] bridge0: port 1(bridge_slave_0) entered blocking state [ 131.005190][ T3545] bridge0: port 1(bridge_slave_0) entered forwarding state [ 131.021013][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 131.030691][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 131.039937][ T8431] bridge0: port 2(bridge_slave_1) entered blocking state [ 131.047291][ T8431] bridge0: port 2(bridge_slave_1) entered forwarding state [ 131.064448][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 131.080415][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 131.098616][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 131.108721][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 131.120127][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 131.145436][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 131.156337][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 131.166574][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 131.176187][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 131.185689][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 131.195214][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 131.214008][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 131.245357][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 131.253029][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 131.274809][ T8223] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 131.306074][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 131.316832][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 131.349041][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 131.359217][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 131.372381][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 131.381447][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 131.393843][ T8223] device veth0_vlan entered promiscuous mode [ 131.412493][ T8223] device veth1_vlan entered promiscuous mode [ 131.451208][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 131.460532][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 131.469918][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 131.479442][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 131.496678][ T8223] device veth0_macvtap entered promiscuous mode [ 131.510816][ T8223] device veth1_macvtap entered promiscuous mode [ 131.541757][ T8223] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 131.549554][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 131.558964][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 131.568025][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 131.577784][ T3545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 131.595002][ T8223] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 131.602572][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 131.612621][ T8431] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 131.631680][ T8223] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 131.640796][ T8223] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 131.649837][ T8223] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 131.659963][ T8223] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 131.807283][ C0] ===================================================== [ 131.814272][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 131.821163][ C0] CPU: 0 PID: 8436 Comm: syz-executor002 Not tainted 5.12.0-rc6-syzkaller #0 [ 131.829938][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.840000][ C0] Call Trace: [ 131.843292][ C0] [ 131.846196][ C0] dump_stack+0x24c/0x2e0 [ 131.850532][ C0] kmsan_report+0xfb/0x1e0 [ 131.854949][ C0] __msan_warning+0x5c/0xa0 [ 131.859469][ C0] ip_rcv_core+0xf4c/0x1480 [ 131.863966][ C0] ip_rcv+0xc7/0x820 [ 131.867851][ C0] ? kmsan_get_metadata+0x116/0x180 [ 131.873132][ C0] __netif_receive_skb+0x1ec/0x640 [ 131.878338][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 131.884042][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 131.889792][ C0] process_backlog+0x517/0xbd0 [ 131.894560][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 131.899847][ C0] __napi_poll+0x13e/0xca0 [ 131.904291][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 131.910530][ C0] net_rx_action+0x726/0x14a0 [ 131.915326][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 131.921139][ C0] ? net_tx_action+0xd30/0xd30 [ 131.925951][ C0] __do_softirq+0x1b9/0x715 [ 131.930570][ C0] ? idle_cpu+0x9a/0x1d0 [ 131.934980][ C0] ? __irq_exit_rcu+0x83/0x280 [ 131.939743][ C0] do_softirq+0x123/0x1c0 [ 131.944075][ C0] [ 131.946997][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 131.952038][ C0] local_bh_enable+0x36/0x40 [ 131.956648][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 131.961668][ C0] dev_queue_xmit+0x4b/0x60 [ 131.966160][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 131.971791][ C0] packet_sendmsg+0x86ee/0x99d0 [ 131.976639][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 131.982811][ C0] ? kmsan_get_metadata+0x116/0x180 [ 131.988095][ C0] ? kmsan_get_metadata+0x116/0x180 [ 131.993302][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 131.998928][ C0] ? process_slab+0x13a8/0x1b70 [ 132.003799][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 132.009607][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.015668][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 132.020524][ C0] ? packet_getsockopt+0x1120/0x1120 [ 132.025827][ C0] __sys_sendmmsg+0xa57/0x1010 [ 132.030583][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 132.036637][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 132.042628][ C0] ? up_read+0x40/0x2b0 [ 132.046792][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.052016][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 132.057824][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.063012][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 132.067787][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 132.072626][ C0] do_syscall_64+0x9f/0x140 [ 132.077130][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 132.083009][ C0] RIP: 0033:0x443e39 [ 132.086900][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 132.106643][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 132.115050][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 132.123008][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 132.130966][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 132.138925][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc41daf0e0 [ 132.146969][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 0000000000000003 [ 132.154931][ C0] [ 132.157242][ C0] Uninit was stored to memory at: [ 132.162241][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 132.167951][ C0] __msan_chain_origin+0x54/0xa0 [ 132.172874][ C0] iptunnel_xmit+0xbd6/0xf20 [ 132.177453][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 132.182577][ C0] geneve_xmit+0x2139/0x3c40 [ 132.187164][ C0] xmit_one+0x2b6/0x760 [ 132.191307][ C0] __dev_queue_xmit+0x3432/0x4600 [ 132.196319][ C0] dev_queue_xmit+0x4b/0x60 [ 132.200821][ C0] packet_sendmsg+0x86ee/0x99d0 [ 132.205659][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 132.210499][ C0] __sys_sendmmsg+0xa57/0x1010 [ 132.215264][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 132.220029][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 132.224866][ C0] do_syscall_64+0x9f/0x140 [ 132.229357][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 132.235250][ C0] [ 132.237553][ C0] Uninit was created at: [ 132.242307][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 132.248037][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 132.252722][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 132.258641][ C0] __alloc_skb+0x4dd/0xe90 [ 132.263047][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 132.268276][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 132.273461][ C0] packet_sendmsg+0x6a12/0x99d0 [ 132.278342][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 132.283182][ C0] __sys_sendmmsg+0xa57/0x1010 [ 132.287933][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 132.292796][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 132.297748][ C0] do_syscall_64+0x9f/0x140 [ 132.302345][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 132.308225][ C0] ===================================================== [ 132.315152][ C0] Disabling lock debugging due to kernel taint [ 132.321554][ C0] ===================================================== [ 132.328549][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf5d/0x1480 [ 132.335427][ C0] CPU: 0 PID: 8436 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 132.345597][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.355662][ C0] Call Trace: [ 132.359303][ C0] [ 132.362156][ C0] dump_stack+0x24c/0x2e0 [ 132.366511][ C0] kmsan_report+0xfb/0x1e0 [ 132.370951][ C0] __msan_warning+0x5c/0xa0 [ 132.375477][ C0] ip_rcv_core+0xf5d/0x1480 [ 132.380005][ C0] ip_rcv+0xc7/0x820 [ 132.383926][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.389147][ C0] __netif_receive_skb+0x1ec/0x640 [ 132.394283][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 132.399937][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 132.405596][ C0] process_backlog+0x517/0xbd0 [ 132.410473][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 132.415789][ C0] __napi_poll+0x13e/0xca0 [ 132.420229][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.426406][ C0] net_rx_action+0x726/0x14a0 [ 132.431105][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 132.436940][ C0] ? net_tx_action+0xd30/0xd30 [ 132.441720][ C0] __do_softirq+0x1b9/0x715 [ 132.446217][ C0] ? idle_cpu+0x9a/0x1d0 [ 132.450464][ C0] ? __irq_exit_rcu+0x83/0x280 [ 132.455226][ C0] do_softirq+0x123/0x1c0 [ 132.459549][ C0] [ 132.462482][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 132.467589][ C0] local_bh_enable+0x36/0x40 [ 132.472186][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 132.477220][ C0] dev_queue_xmit+0x4b/0x60 [ 132.481709][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 132.486985][ C0] packet_sendmsg+0x86ee/0x99d0 [ 132.491876][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.497939][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.503121][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.508321][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 132.513954][ C0] ? process_slab+0x13a8/0x1b70 [ 132.518844][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 132.524642][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.530706][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 132.535550][ C0] ? packet_getsockopt+0x1120/0x1120 [ 132.540841][ C0] __sys_sendmmsg+0xa57/0x1010 [ 132.545635][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 132.551899][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 132.557882][ C0] ? up_read+0x40/0x2b0 [ 132.562035][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.567226][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 132.573053][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.578269][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 132.583043][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 132.587936][ C0] do_syscall_64+0x9f/0x140 [ 132.592434][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 132.598460][ C0] RIP: 0033:0x443e39 [ 132.602339][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 132.621933][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 132.630421][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 132.638400][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 132.646357][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 132.654318][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc41daf0e0 [ 132.662394][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 0000000000000003 [ 132.670370][ C0] [ 132.672678][ C0] Uninit was stored to memory at: [ 132.677798][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 132.683510][ C0] __msan_chain_origin+0x54/0xa0 [ 132.688443][ C0] iptunnel_xmit+0xbd6/0xf20 [ 132.693059][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 132.698212][ C0] geneve_xmit+0x2139/0x3c40 [ 132.702795][ C0] xmit_one+0x2b6/0x760 [ 132.706942][ C0] __dev_queue_xmit+0x3432/0x4600 [ 132.711958][ C0] dev_queue_xmit+0x4b/0x60 [ 132.716448][ C0] packet_sendmsg+0x86ee/0x99d0 [ 132.721370][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 132.726212][ C0] __sys_sendmmsg+0xa57/0x1010 [ 132.730970][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 132.735842][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 132.740681][ C0] do_syscall_64+0x9f/0x140 [ 132.745193][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 132.751072][ C0] [ 132.753376][ C0] Uninit was created at: [ 132.757608][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 132.763414][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 132.768075][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 132.773955][ C0] __alloc_skb+0x4dd/0xe90 [ 132.778355][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 132.783542][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 132.788754][ C0] packet_sendmsg+0x6a12/0x99d0 [ 132.793593][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 132.798433][ C0] __sys_sendmmsg+0xa57/0x1010 [ 132.803198][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 132.808701][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 132.813543][ C0] do_syscall_64+0x9f/0x140 [ 132.818035][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 132.823914][ C0] ===================================================== [ 132.831029][ C0] ===================================================== [ 132.838047][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0x1068/0x1480 [ 132.845042][ C0] CPU: 0 PID: 8436 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 132.855211][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.865280][ C0] Call Trace: [ 132.868572][ C0] [ 132.871424][ C0] dump_stack+0x24c/0x2e0 [ 132.875789][ C0] kmsan_report+0xfb/0x1e0 [ 132.880229][ C0] __msan_warning+0x5c/0xa0 [ 132.884757][ C0] ip_rcv_core+0x1068/0x1480 [ 132.889386][ C0] ip_rcv+0xc7/0x820 [ 132.893306][ C0] ? kmsan_get_metadata+0x116/0x180 [ 132.898569][ C0] __netif_receive_skb+0x1ec/0x640 [ 132.903715][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 132.909377][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 132.915035][ C0] process_backlog+0x517/0xbd0 [ 132.919852][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 132.925158][ C0] __napi_poll+0x13e/0xca0 [ 132.929595][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.935791][ C0] net_rx_action+0x726/0x14a0 [ 132.940603][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 132.946596][ C0] ? net_tx_action+0xd30/0xd30 [ 132.951364][ C0] __do_softirq+0x1b9/0x715 [ 132.955884][ C0] ? idle_cpu+0x9a/0x1d0 [ 132.960167][ C0] ? __irq_exit_rcu+0x83/0x280 [ 132.965103][ C0] do_softirq+0x123/0x1c0 [ 132.969446][ C0] [ 132.972365][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 132.977382][ C0] local_bh_enable+0x36/0x40 [ 132.981964][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 132.986991][ C0] dev_queue_xmit+0x4b/0x60 [ 132.991664][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 132.996946][ C0] packet_sendmsg+0x86ee/0x99d0 [ 133.001791][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 133.007881][ C0] ? kmsan_get_metadata+0x116/0x180 [ 133.013083][ C0] ? kmsan_get_metadata+0x116/0x180 [ 133.018375][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 133.024100][ C0] ? process_slab+0x13a8/0x1b70 [ 133.028967][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 133.034786][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 133.040892][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 133.045785][ C0] ? packet_getsockopt+0x1120/0x1120 [ 133.051097][ C0] __sys_sendmmsg+0xa57/0x1010 [ 133.055866][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 133.062063][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 133.068033][ C0] ? up_read+0x40/0x2b0 [ 133.072192][ C0] ? kmsan_get_metadata+0x116/0x180 [ 133.077376][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 133.083174][ C0] ? kmsan_get_metadata+0x116/0x180 [ 133.088472][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 133.093228][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 133.098070][ C0] do_syscall_64+0x9f/0x140 [ 133.102595][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 133.108587][ C0] RIP: 0033:0x443e39 [ 133.112463][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 133.132246][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 133.140660][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 133.148631][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 133.156746][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 133.164819][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc41daf0e0 [ 133.173365][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 0000000000000003 [ 133.181339][ C0] [ 133.183649][ C0] Uninit was stored to memory at: [ 133.188660][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 133.194491][ C0] __msan_chain_origin+0x54/0xa0 [ 133.199427][ C0] __ip_local_out+0x479/0x840 [ 133.204093][ C0] ip_local_out+0xa1/0x1e0 [ 133.208499][ C0] iptunnel_xmit+0x931/0xf20 [ 133.213092][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 133.218206][ C0] geneve_xmit+0x2139/0x3c40 [ 133.222787][ C0] xmit_one+0x2b6/0x760 [ 133.226932][ C0] __dev_queue_xmit+0x3432/0x4600 [ 133.231945][ C0] dev_queue_xmit+0x4b/0x60 [ 133.236447][ C0] packet_sendmsg+0x86ee/0x99d0 [ 133.241289][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 133.246240][ C0] __sys_sendmmsg+0xa57/0x1010 [ 133.251788][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 133.256540][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 133.261377][ C0] do_syscall_64+0x9f/0x140 [ 133.265959][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 133.271934][ C0] [ 133.274337][ C0] Uninit was stored to memory at: [ 133.279335][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 133.285044][ C0] __msan_chain_origin+0x54/0xa0 [ 133.289969][ C0] iptunnel_xmit+0xbd6/0xf20 [ 133.294550][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 133.299655][ C0] geneve_xmit+0x2139/0x3c40 [ 133.304269][ C0] xmit_one+0x2b6/0x760 [ 133.308441][ C0] __dev_queue_xmit+0x3432/0x4600 [ 133.314157][ C0] dev_queue_xmit+0x4b/0x60 [ 133.318646][ C0] packet_sendmsg+0x86ee/0x99d0 [ 133.323495][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 133.328336][ C0] __sys_sendmmsg+0xa57/0x1010 [ 133.333166][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 133.338008][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 133.342869][ C0] do_syscall_64+0x9f/0x140 [ 133.347373][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 133.353257][ C0] [ 133.355565][ C0] Uninit was created at: [ 133.359782][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 133.365496][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 133.370333][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 133.376220][ C0] __alloc_skb+0x4dd/0xe90 [ 133.380625][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 133.385920][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 133.391241][ C0] packet_sendmsg+0x6a12/0x99d0 [ 133.396094][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 133.400960][ C0] __sys_sendmmsg+0xa57/0x1010 [ 133.405731][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 133.410485][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 133.415327][ C0] do_syscall_64+0x9f/0x140 [ 133.419825][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 133.425891][ C0] ===================================================== executing program [ 133.507391][ C1] ===================================================== [ 133.514381][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 133.521269][ C1] CPU: 1 PID: 8438 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 133.531437][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.541677][ C1] Call Trace: [ 133.544974][ C1] [ 133.547834][ C1] dump_stack+0x24c/0x2e0 [ 133.552191][ C1] kmsan_report+0xfb/0x1e0 [ 133.556721][ C1] __msan_warning+0x5c/0xa0 [ 133.561352][ C1] ip_rcv_core+0xf4c/0x1480 [ 133.565850][ C1] ip_rcv+0xc7/0x820 [ 133.569743][ C1] ? kmsan_get_metadata+0x116/0x180 [ 133.574964][ C1] __netif_receive_skb+0x1ec/0x640 [ 133.580076][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 133.585723][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 133.591378][ C1] process_backlog+0x517/0xbd0 [ 133.596150][ C1] ? rps_trigger_softirq+0x4d0/0x4d0 [ 133.601429][ C1] __napi_poll+0x13e/0xca0 [ 133.605847][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 133.612010][ C1] net_rx_action+0x726/0x14a0 [ 133.616681][ C1] ? net_tx_action+0xd30/0xd30 [ 133.621437][ C1] __do_softirq+0x1b9/0x715 [ 133.625941][ C1] ? idle_cpu+0x9a/0x1d0 [ 133.630204][ C1] ? __irq_exit_rcu+0x83/0x280 [ 133.634959][ C1] do_softirq+0x123/0x1c0 [ 133.639280][ C1] [ 133.642198][ C1] __local_bh_enable_ip+0xa1/0xb0 [ 133.647211][ C1] local_bh_enable+0x36/0x40 [ 133.651807][ C1] __dev_queue_xmit+0x3b4a/0x4600 [ 133.656849][ C1] dev_queue_xmit+0x4b/0x60 [ 133.661342][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 133.666618][ C1] packet_sendmsg+0x86ee/0x99d0 [ 133.671513][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 133.677609][ C1] ? kmsan_get_metadata+0x116/0x180 [ 133.683587][ C1] ? kmsan_get_metadata+0x116/0x180 [ 133.688891][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 133.694599][ C1] ? process_slab+0x13a8/0x1b70 [ 133.699475][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 133.705278][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 133.711373][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 133.716291][ C1] ? packet_getsockopt+0x1120/0x1120 [ 133.721665][ C1] __sys_sendmmsg+0xa57/0x1010 [ 133.726457][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 133.732515][ C1] ? kmsan_get_metadata+0x116/0x180 [ 133.737730][ C1] ? kmsan_get_metadata+0x116/0x180 [ 133.742918][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 133.748540][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 133.754771][ C1] ? __msan_instrument_asm_store+0x107/0x130 [ 133.760833][ C1] ? kmsan_get_metadata+0x116/0x180 [ 133.766027][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 133.770993][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 133.775993][ C1] do_syscall_64+0x9f/0x140 [ 133.780509][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 133.786537][ C1] RIP: 0033:0x443e39 [ 133.790431][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 133.811621][ C1] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 133.820029][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 133.828063][ C1] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 133.836035][ C1] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 133.844020][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020393 [ 133.852011][ C1] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 133.859999][ C1] [ 133.862342][ C1] Uninit was stored to memory at: [ 133.867362][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 133.873092][ C1] __msan_chain_origin+0x54/0xa0 [ 133.878095][ C1] iptunnel_xmit+0xbd6/0xf20 [ 133.882679][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 133.887789][ C1] geneve_xmit+0x2139/0x3c40 [ 133.892455][ C1] xmit_one+0x2b6/0x760 [ 133.896605][ C1] __dev_queue_xmit+0x3432/0x4600 [ 133.901618][ C1] dev_queue_xmit+0x4b/0x60 [ 133.906131][ C1] packet_sendmsg+0x86ee/0x99d0 [ 133.910976][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 133.915820][ C1] __sys_sendmmsg+0xa57/0x1010 [ 133.920591][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 133.925528][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 133.930379][ C1] do_syscall_64+0x9f/0x140 [ 133.934894][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 133.940881][ C1] [ 133.943193][ C1] Uninit was created at: [ 133.947446][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 133.953170][ C1] kmsan_slab_alloc+0x8e/0xe0 [ 133.957875][ C1] __kmalloc_node_track_caller+0xa4f/0x1470 [ 133.963776][ C1] __alloc_skb+0x4dd/0xe90 [ 133.968199][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 133.973390][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 133.978693][ C1] packet_sendmsg+0x6a12/0x99d0 [ 133.983581][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 133.988560][ C1] __sys_sendmmsg+0xa57/0x1010 [ 133.993342][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 133.998135][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 134.003000][ C1] do_syscall_64+0x9f/0x140 [ 134.007530][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.013414][ C1] ===================================================== [ 134.020491][ C1] ===================================================== [ 134.027459][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0xf5d/0x1480 [ 134.034337][ C1] CPU: 1 PID: 8438 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 134.044511][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 134.054576][ C1] Call Trace: [ 134.057861][ C1] [ 134.060712][ C1] dump_stack+0x24c/0x2e0 [ 134.065072][ C1] kmsan_report+0xfb/0x1e0 [ 134.069512][ C1] __msan_warning+0x5c/0xa0 [ 134.074034][ C1] ip_rcv_core+0xf5d/0x1480 [ 134.078570][ C1] ip_rcv+0xc7/0x820 [ 134.082493][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.087715][ C1] __netif_receive_skb+0x1ec/0x640 [ 134.092854][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 134.098521][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 134.104177][ C1] process_backlog+0x517/0xbd0 [ 134.108957][ C1] ? rps_trigger_softirq+0x4d0/0x4d0 [ 134.114235][ C1] __napi_poll+0x13e/0xca0 [ 134.118659][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 134.124729][ C1] net_rx_action+0x726/0x14a0 [ 134.129431][ C1] ? net_tx_action+0xd30/0xd30 [ 134.134200][ C1] __do_softirq+0x1b9/0x715 [ 134.138795][ C1] ? idle_cpu+0x9a/0x1d0 [ 134.143054][ C1] ? __irq_exit_rcu+0x83/0x280 [ 134.147848][ C1] do_softirq+0x123/0x1c0 [ 134.152193][ C1] [ 134.155124][ C1] __local_bh_enable_ip+0xa1/0xb0 [ 134.160141][ C1] local_bh_enable+0x36/0x40 [ 134.164736][ C1] __dev_queue_xmit+0x3b4a/0x4600 [ 134.169851][ C1] dev_queue_xmit+0x4b/0x60 [ 134.174361][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 134.179672][ C1] packet_sendmsg+0x86ee/0x99d0 [ 134.184612][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 134.190687][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.195958][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.201164][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 134.206809][ C1] ? process_slab+0x13a8/0x1b70 [ 134.211764][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 134.217612][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 134.223710][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 134.228574][ C1] ? packet_getsockopt+0x1120/0x1120 [ 134.233857][ C1] __sys_sendmmsg+0xa57/0x1010 [ 134.238622][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 134.244681][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.249873][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.255062][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 134.260782][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 134.266873][ C1] ? __msan_instrument_asm_store+0x107/0x130 [ 134.272856][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.278068][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 134.282850][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 134.287723][ C1] do_syscall_64+0x9f/0x140 [ 134.292247][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.298153][ C1] RIP: 0033:0x443e39 [ 134.302046][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 134.321762][ C1] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 134.330337][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 134.338413][ C1] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 134.346468][ C1] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 134.354431][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020393 [ 134.362395][ C1] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 134.370369][ C1] [ 134.372682][ C1] Uninit was stored to memory at: [ 134.377696][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 134.383407][ C1] __msan_chain_origin+0x54/0xa0 [ 134.388354][ C1] iptunnel_xmit+0xbd6/0xf20 [ 134.392934][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 134.398043][ C1] geneve_xmit+0x2139/0x3c40 [ 134.402638][ C1] xmit_one+0x2b6/0x760 [ 134.406782][ C1] __dev_queue_xmit+0x3432/0x4600 [ 134.411810][ C1] dev_queue_xmit+0x4b/0x60 [ 134.416304][ C1] packet_sendmsg+0x86ee/0x99d0 [ 134.421166][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 134.426104][ C1] __sys_sendmmsg+0xa57/0x1010 [ 134.431090][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 134.435871][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 134.440752][ C1] do_syscall_64+0x9f/0x140 [ 134.445334][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.451225][ C1] [ 134.453650][ C1] Uninit was created at: [ 134.457970][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 134.463693][ C1] kmsan_slab_alloc+0x8e/0xe0 [ 134.468516][ C1] __kmalloc_node_track_caller+0xa4f/0x1470 [ 134.474440][ C1] __alloc_skb+0x4dd/0xe90 [ 134.478855][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 134.484057][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 134.489297][ C1] packet_sendmsg+0x6a12/0x99d0 [ 134.494147][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 134.499027][ C1] __sys_sendmmsg+0xa57/0x1010 [ 134.503815][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 134.508602][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 134.513492][ C1] do_syscall_64+0x9f/0x140 [ 134.517992][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.523977][ C1] ===================================================== [ 134.531093][ C1] ===================================================== [ 134.538974][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0x1068/0x1480 [ 134.545955][ C1] CPU: 1 PID: 8438 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 134.556298][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 134.566373][ C1] Call Trace: [ 134.569681][ C1] [ 134.572605][ C1] dump_stack+0x24c/0x2e0 [ 134.576967][ C1] kmsan_report+0xfb/0x1e0 [ 134.581440][ C1] __msan_warning+0x5c/0xa0 [ 134.585971][ C1] ip_rcv_core+0x1068/0x1480 [ 134.590595][ C1] ip_rcv+0xc7/0x820 [ 134.594528][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.600013][ C1] __netif_receive_skb+0x1ec/0x640 [ 134.605150][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 134.610807][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 134.616738][ C1] process_backlog+0x517/0xbd0 [ 134.621512][ C1] ? rps_trigger_softirq+0x4d0/0x4d0 [ 134.626820][ C1] __napi_poll+0x13e/0xca0 [ 134.631232][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 134.637295][ C1] net_rx_action+0x726/0x14a0 [ 134.641988][ C1] ? net_tx_action+0xd30/0xd30 [ 134.646759][ C1] __do_softirq+0x1b9/0x715 [ 134.651283][ C1] ? idle_cpu+0x9a/0x1d0 [ 134.655542][ C1] ? __irq_exit_rcu+0x83/0x280 [ 134.660335][ C1] do_softirq+0x123/0x1c0 [ 134.664675][ C1] [ 134.667599][ C1] __local_bh_enable_ip+0xa1/0xb0 [ 134.672621][ C1] local_bh_enable+0x36/0x40 [ 134.677219][ C1] __dev_queue_xmit+0x3b4a/0x4600 [ 134.682291][ C1] dev_queue_xmit+0x4b/0x60 [ 134.686813][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 134.692095][ C1] packet_sendmsg+0x86ee/0x99d0 [ 134.696949][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 134.703017][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.708254][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.713469][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 134.719143][ C1] ? process_slab+0x13a8/0x1b70 [ 134.724041][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 134.730126][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 134.736209][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 134.741085][ C1] ? packet_getsockopt+0x1120/0x1120 [ 134.746377][ C1] __sys_sendmmsg+0xa57/0x1010 [ 134.751162][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 134.757243][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.762450][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.767641][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 134.773448][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 134.780162][ C1] ? __msan_instrument_asm_store+0x107/0x130 [ 134.786193][ C1] ? kmsan_get_metadata+0x116/0x180 [ 134.791418][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 134.796191][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 134.801041][ C1] do_syscall_64+0x9f/0x140 [ 134.805539][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.811442][ C1] RIP: 0033:0x443e39 [ 134.815321][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 134.835008][ C1] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 134.843434][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 134.851724][ C1] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 134.859815][ C1] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 134.867810][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020393 [ 134.875805][ C1] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 134.883809][ C1] [ 134.886140][ C1] Uninit was stored to memory at: [ 134.891191][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 134.896921][ C1] __msan_chain_origin+0x54/0xa0 [ 134.901851][ C1] __ip_local_out+0x479/0x840 [ 134.906564][ C1] ip_local_out+0xa1/0x1e0 [ 134.910973][ C1] iptunnel_xmit+0x931/0xf20 [ 134.915664][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 134.920996][ C1] geneve_xmit+0x2139/0x3c40 [ 134.925583][ C1] xmit_one+0x2b6/0x760 [ 134.929854][ C1] __dev_queue_xmit+0x3432/0x4600 [ 134.934883][ C1] dev_queue_xmit+0x4b/0x60 [ 134.939387][ C1] packet_sendmsg+0x86ee/0x99d0 [ 134.944240][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 134.949100][ C1] __sys_sendmmsg+0xa57/0x1010 [ 134.953883][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 134.958803][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 134.963655][ C1] do_syscall_64+0x9f/0x140 [ 134.968155][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 134.974074][ C1] [ 134.976385][ C1] Uninit was stored to memory at: [ 134.981497][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 134.987217][ C1] __msan_chain_origin+0x54/0xa0 [ 134.992179][ C1] iptunnel_xmit+0xbd6/0xf20 [ 134.996764][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 135.001879][ C1] geneve_xmit+0x2139/0x3c40 [ 135.006494][ C1] xmit_one+0x2b6/0x760 [ 135.010640][ C1] __dev_queue_xmit+0x3432/0x4600 [ 135.015671][ C1] dev_queue_xmit+0x4b/0x60 [ 135.020172][ C1] packet_sendmsg+0x86ee/0x99d0 [ 135.025022][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 135.029876][ C1] __sys_sendmmsg+0xa57/0x1010 [ 135.034633][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 135.039417][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 135.044311][ C1] do_syscall_64+0x9f/0x140 [ 135.048809][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.054713][ C1] [ 135.057023][ C1] Uninit was created at: [ 135.061241][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 135.067053][ C1] kmsan_slab_alloc+0x8e/0xe0 [ 135.071723][ C1] __kmalloc_node_track_caller+0xa4f/0x1470 [ 135.077712][ C1] __alloc_skb+0x4dd/0xe90 [ 135.082123][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 135.087317][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 135.092529][ C1] packet_sendmsg+0x6a12/0x99d0 [ 135.097376][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 135.102230][ C1] __sys_sendmmsg+0xa57/0x1010 [ 135.107222][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 135.111986][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 135.116918][ C1] do_syscall_64+0x9f/0x140 [ 135.121459][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.127569][ C1] ===================================================== executing program [ 135.190932][ C0] ===================================================== [ 135.197989][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 135.204876][ C0] CPU: 0 PID: 8439 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 135.215068][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 135.225136][ C0] Call Trace: [ 135.228519][ C0] [ 135.231350][ C0] dump_stack+0x24c/0x2e0 [ 135.235766][ C0] kmsan_report+0xfb/0x1e0 [ 135.240170][ C0] __msan_warning+0x5c/0xa0 [ 135.245046][ C0] ip_rcv_core+0xf4c/0x1480 [ 135.249600][ C0] ip_rcv+0xc7/0x820 [ 135.253517][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.258731][ C0] __netif_receive_skb+0x1ec/0x640 [ 135.263850][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 135.269480][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 135.275273][ C0] process_backlog+0x517/0xbd0 [ 135.280022][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 135.285320][ C0] __napi_poll+0x13e/0xca0 [ 135.289726][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 135.295881][ C0] net_rx_action+0x726/0x14a0 [ 135.300549][ C0] ? net_tx_action+0xd30/0xd30 [ 135.305312][ C0] __do_softirq+0x1b9/0x715 [ 135.309831][ C0] ? idle_cpu+0x9a/0x1d0 [ 135.314078][ C0] ? __irq_exit_rcu+0x83/0x280 [ 135.318855][ C0] do_softirq+0x123/0x1c0 [ 135.323194][ C0] [ 135.326126][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 135.331149][ C0] local_bh_enable+0x36/0x40 [ 135.335738][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 135.341204][ C0] dev_queue_xmit+0x4b/0x60 [ 135.345700][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 135.350986][ C0] packet_sendmsg+0x86ee/0x99d0 [ 135.355826][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 135.361965][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.367162][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.372363][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 135.377980][ C0] ? process_slab+0x13a8/0x1b70 [ 135.382836][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 135.388641][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 135.394714][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 135.399565][ C0] ? packet_getsockopt+0x1120/0x1120 [ 135.404855][ C0] __sys_sendmmsg+0xa57/0x1010 [ 135.409626][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 135.415678][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.420863][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.426044][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 135.431682][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 135.437749][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 135.443716][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.448943][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 135.453710][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 135.458546][ C0] do_syscall_64+0x9f/0x140 [ 135.463050][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.468928][ C0] RIP: 0033:0x443e39 [ 135.472818][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 135.492496][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 135.500896][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 135.508869][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 135.516833][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 135.524905][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020a4f [ 135.532871][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 135.540852][ C0] [ 135.543173][ C0] Uninit was stored to memory at: [ 135.548169][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 135.553890][ C0] __msan_chain_origin+0x54/0xa0 [ 135.558819][ C0] iptunnel_xmit+0xbd6/0xf20 [ 135.563481][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 135.568607][ C0] geneve_xmit+0x2139/0x3c40 [ 135.573205][ C0] xmit_one+0x2b6/0x760 [ 135.577346][ C0] __dev_queue_xmit+0x3432/0x4600 [ 135.582354][ C0] dev_queue_xmit+0x4b/0x60 [ 135.586851][ C0] packet_sendmsg+0x86ee/0x99d0 [ 135.591692][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 135.596540][ C0] __sys_sendmmsg+0xa57/0x1010 [ 135.601288][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 135.606034][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 135.610867][ C0] do_syscall_64+0x9f/0x140 [ 135.615357][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.621252][ C0] [ 135.623557][ C0] Uninit was created at: [ 135.627860][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 135.633676][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 135.638333][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 135.644243][ C0] __alloc_skb+0x4dd/0xe90 [ 135.648655][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 135.654112][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 135.659311][ C0] packet_sendmsg+0x6a12/0x99d0 [ 135.664151][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 135.669002][ C0] __sys_sendmmsg+0xa57/0x1010 [ 135.673774][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 135.678550][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 135.683817][ C0] do_syscall_64+0x9f/0x140 [ 135.688305][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.694181][ C0] ===================================================== [ 135.701433][ C0] ===================================================== [ 135.708375][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf5d/0x1480 [ 135.715278][ C0] CPU: 0 PID: 8439 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 135.725458][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 135.735620][ C0] Call Trace: [ 135.738931][ C0] [ 135.741789][ C0] dump_stack+0x24c/0x2e0 [ 135.746289][ C0] kmsan_report+0xfb/0x1e0 [ 135.750737][ C0] __msan_warning+0x5c/0xa0 [ 135.755448][ C0] ip_rcv_core+0xf5d/0x1480 [ 135.759991][ C0] ip_rcv+0xc7/0x820 [ 135.763916][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.769146][ C0] __netif_receive_skb+0x1ec/0x640 [ 135.774289][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 135.780013][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 135.785704][ C0] process_backlog+0x517/0xbd0 [ 135.790700][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 135.795984][ C0] __napi_poll+0x13e/0xca0 [ 135.800400][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 135.806473][ C0] net_rx_action+0x726/0x14a0 [ 135.811411][ C0] ? net_tx_action+0xd30/0xd30 [ 135.816317][ C0] __do_softirq+0x1b9/0x715 [ 135.820859][ C0] ? idle_cpu+0x9a/0x1d0 [ 135.825362][ C0] ? __irq_exit_rcu+0x83/0x280 [ 135.830396][ C0] do_softirq+0x123/0x1c0 [ 135.834824][ C0] [ 135.837832][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 135.842875][ C0] local_bh_enable+0x36/0x40 [ 135.847492][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 135.852522][ C0] dev_queue_xmit+0x4b/0x60 [ 135.857031][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 135.862334][ C0] packet_sendmsg+0x86ee/0x99d0 [ 135.867223][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 135.873383][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.878729][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.884222][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 135.889876][ C0] ? process_slab+0x13a8/0x1b70 [ 135.894726][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 135.900545][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 135.906631][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 135.911526][ C0] ? packet_getsockopt+0x1120/0x1120 [ 135.916809][ C0] __sys_sendmmsg+0xa57/0x1010 [ 135.921589][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 135.927696][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.932888][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.938116][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 135.944365][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 135.950463][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 135.956436][ C0] ? kmsan_get_metadata+0x116/0x180 [ 135.961639][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 135.966426][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 135.971271][ C0] do_syscall_64+0x9f/0x140 [ 135.975772][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 135.981839][ C0] RIP: 0033:0x443e39 [ 135.985966][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 136.005578][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 136.014110][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 136.022085][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 136.030051][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 136.038015][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020a4f [ 136.045995][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 136.053971][ C0] [ 136.056308][ C0] Uninit was stored to memory at: [ 136.061310][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 136.067025][ C0] __msan_chain_origin+0x54/0xa0 [ 136.071974][ C0] iptunnel_xmit+0xbd6/0xf20 [ 136.076566][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 136.081761][ C0] geneve_xmit+0x2139/0x3c40 [ 136.086349][ C0] xmit_one+0x2b6/0x760 [ 136.090502][ C0] __dev_queue_xmit+0x3432/0x4600 [ 136.095541][ C0] dev_queue_xmit+0x4b/0x60 [ 136.100038][ C0] packet_sendmsg+0x86ee/0x99d0 [ 136.104885][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 136.109776][ C0] __sys_sendmmsg+0xa57/0x1010 [ 136.114534][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 136.119287][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 136.124563][ C0] do_syscall_64+0x9f/0x140 [ 136.129081][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 136.134970][ C0] [ 136.137292][ C0] Uninit was created at: [ 136.141508][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 136.147281][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 136.151992][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 136.157881][ C0] __alloc_skb+0x4dd/0xe90 [ 136.162287][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 136.167478][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 136.172673][ C0] packet_sendmsg+0x6a12/0x99d0 [ 136.177532][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 136.182373][ C0] __sys_sendmmsg+0xa57/0x1010 [ 136.187126][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 136.191884][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 136.196770][ C0] do_syscall_64+0x9f/0x140 [ 136.201264][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 136.207150][ C0] ===================================================== [ 136.214283][ C0] ===================================================== [ 136.221219][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0x1068/0x1480 [ 136.228186][ C0] CPU: 0 PID: 8439 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 136.238369][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 136.248447][ C0] Call Trace: [ 136.251738][ C0] [ 136.254595][ C0] dump_stack+0x24c/0x2e0 [ 136.259005][ C0] kmsan_report+0xfb/0x1e0 [ 136.263487][ C0] __msan_warning+0x5c/0xa0 [ 136.268016][ C0] ip_rcv_core+0x1068/0x1480 [ 136.272632][ C0] ip_rcv+0xc7/0x820 [ 136.276546][ C0] ? kmsan_get_metadata+0x116/0x180 [ 136.281769][ C0] __netif_receive_skb+0x1ec/0x640 [ 136.286926][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 136.295373][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 136.301117][ C0] process_backlog+0x517/0xbd0 [ 136.305878][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 136.311161][ C0] __napi_poll+0x13e/0xca0 [ 136.315580][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.321840][ C0] net_rx_action+0x726/0x14a0 [ 136.326510][ C0] ? net_tx_action+0xd30/0xd30 [ 136.331264][ C0] __do_softirq+0x1b9/0x715 [ 136.335778][ C0] ? idle_cpu+0x9a/0x1d0 [ 136.340014][ C0] ? __irq_exit_rcu+0x83/0x280 [ 136.344788][ C0] do_softirq+0x123/0x1c0 [ 136.349125][ C0] [ 136.352056][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 136.357125][ C0] local_bh_enable+0x36/0x40 [ 136.361706][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 136.366752][ C0] dev_queue_xmit+0x4b/0x60 [ 136.371251][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 136.376550][ C0] packet_sendmsg+0x86ee/0x99d0 [ 136.381401][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.387571][ C0] ? kmsan_get_metadata+0x116/0x180 [ 136.392773][ C0] ? kmsan_get_metadata+0x116/0x180 [ 136.397965][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 136.403621][ C0] ? process_slab+0x13a8/0x1b70 [ 136.408484][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.414279][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.420561][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 136.425416][ C0] ? packet_getsockopt+0x1120/0x1120 [ 136.430733][ C0] __sys_sendmmsg+0xa57/0x1010 [ 136.435494][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 136.441562][ C0] ? kmsan_get_metadata+0x116/0x180 [ 136.446754][ C0] ? kmsan_get_metadata+0x116/0x180 [ 136.452064][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 136.457699][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 136.463759][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 136.469747][ C0] ? kmsan_get_metadata+0x116/0x180 [ 136.474957][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 136.479743][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 136.484601][ C0] do_syscall_64+0x9f/0x140 [ 136.489098][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 136.494985][ C0] RIP: 0033:0x443e39 [ 136.498882][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 136.518478][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 136.526882][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 136.534861][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 136.542842][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 136.550807][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020a4f [ 136.558780][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 136.566779][ C0] [ 136.569114][ C0] Uninit was stored to memory at: [ 136.574119][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 136.580197][ C0] __msan_chain_origin+0x54/0xa0 [ 136.585142][ C0] __ip_local_out+0x479/0x840 [ 136.589835][ C0] ip_local_out+0xa1/0x1e0 [ 136.594247][ C0] iptunnel_xmit+0x931/0xf20 [ 136.598863][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 136.603995][ C0] geneve_xmit+0x2139/0x3c40 [ 136.608617][ C0] xmit_one+0x2b6/0x760 [ 136.612791][ C0] __dev_queue_xmit+0x3432/0x4600 [ 136.617897][ C0] dev_queue_xmit+0x4b/0x60 [ 136.622390][ C0] packet_sendmsg+0x86ee/0x99d0 [ 136.627248][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 136.632100][ C0] __sys_sendmmsg+0xa57/0x1010 [ 136.636885][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 136.642001][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 136.646846][ C0] do_syscall_64+0x9f/0x140 [ 136.651382][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 136.657279][ C0] [ 136.659708][ C0] Uninit was stored to memory at: [ 136.664739][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 136.670720][ C0] __msan_chain_origin+0x54/0xa0 [ 136.675665][ C0] iptunnel_xmit+0xbd6/0xf20 [ 136.680256][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 136.685368][ C0] geneve_xmit+0x2139/0x3c40 [ 136.689973][ C0] xmit_one+0x2b6/0x760 [ 136.694143][ C0] __dev_queue_xmit+0x3432/0x4600 [ 136.699177][ C0] dev_queue_xmit+0x4b/0x60 [ 136.703715][ C0] packet_sendmsg+0x86ee/0x99d0 [ 136.708594][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 136.713530][ C0] __sys_sendmmsg+0xa57/0x1010 [ 136.718290][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 136.723046][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 136.727896][ C0] do_syscall_64+0x9f/0x140 [ 136.732420][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 136.738343][ C0] [ 136.740734][ C0] Uninit was created at: [ 136.745073][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 136.750928][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 136.755714][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 136.761636][ C0] __alloc_skb+0x4dd/0xe90 [ 136.766051][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 136.771274][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 136.776477][ C0] packet_sendmsg+0x6a12/0x99d0 [ 136.781352][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 136.786398][ C0] __sys_sendmmsg+0xa57/0x1010 [ 136.791172][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 136.796090][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 136.800956][ C0] do_syscall_64+0x9f/0x140 [ 136.805488][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 136.811404][ C0] ===================================================== executing program [ 136.886027][ C1] ===================================================== [ 136.893146][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 136.900017][ C1] CPU: 1 PID: 8440 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 136.910464][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 136.920521][ C1] Call Trace: [ 136.923993][ C1] [ 136.926847][ C1] dump_stack+0x24c/0x2e0 [ 136.931256][ C1] kmsan_report+0xfb/0x1e0 [ 136.936021][ C1] __msan_warning+0x5c/0xa0 [ 136.940527][ C1] ip_rcv_core+0xf4c/0x1480 [ 136.945054][ C1] ip_rcv+0xc7/0x820 [ 136.948942][ C1] ? kmsan_get_metadata+0x116/0x180 [ 136.954131][ C1] __netif_receive_skb+0x1ec/0x640 [ 136.959236][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 136.964886][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 136.970561][ C1] process_backlog+0x517/0xbd0 [ 136.975351][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.981193][ C1] ? rps_trigger_softirq+0x4d0/0x4d0 [ 136.986483][ C1] __napi_poll+0x13e/0xca0 [ 136.990902][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.996971][ C1] net_rx_action+0x726/0x14a0 [ 137.001644][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.007454][ C1] ? net_tx_action+0xd30/0xd30 [ 137.012230][ C1] __do_softirq+0x1b9/0x715 [ 137.016746][ C1] ? idle_cpu+0x9a/0x1d0 [ 137.021111][ C1] ? __irq_exit_rcu+0x83/0x280 [ 137.025982][ C1] do_softirq+0x123/0x1c0 [ 137.030513][ C1] [ 137.033486][ C1] __local_bh_enable_ip+0xa1/0xb0 [ 137.038517][ C1] local_bh_enable+0x36/0x40 [ 137.043135][ C1] __dev_queue_xmit+0x3b4a/0x4600 [ 137.048186][ C1] dev_queue_xmit+0x4b/0x60 [ 137.052773][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 137.058088][ C1] packet_sendmsg+0x86ee/0x99d0 [ 137.062972][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.069054][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.074246][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.079450][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.085078][ C1] ? process_slab+0x13a8/0x1b70 [ 137.089930][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.095743][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.101838][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 137.106696][ C1] ? packet_getsockopt+0x1120/0x1120 [ 137.111989][ C1] __sys_sendmmsg+0xa57/0x1010 [ 137.116888][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 137.122960][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.128187][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.133416][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.139245][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 137.145316][ C1] ? __msan_instrument_asm_store+0x107/0x130 [ 137.151373][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.156747][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 137.162064][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 137.166917][ C1] do_syscall_64+0x9f/0x140 [ 137.171447][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.177347][ C1] RIP: 0033:0x443e39 [ 137.181382][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 137.201088][ C1] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 137.209607][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 137.217599][ C1] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 137.225599][ C1] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 137.233596][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000210dd [ 137.241570][ C1] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 137.249550][ C1] [ 137.251970][ C1] Uninit was stored to memory at: [ 137.256975][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 137.262721][ C1] __msan_chain_origin+0x54/0xa0 [ 137.267660][ C1] iptunnel_xmit+0xbd6/0xf20 [ 137.272289][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 137.277430][ C1] geneve_xmit+0x2139/0x3c40 [ 137.282025][ C1] xmit_one+0x2b6/0x760 [ 137.286190][ C1] __dev_queue_xmit+0x3432/0x4600 [ 137.291237][ C1] dev_queue_xmit+0x4b/0x60 [ 137.295825][ C1] packet_sendmsg+0x86ee/0x99d0 [ 137.300676][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 137.305520][ C1] __sys_sendmmsg+0xa57/0x1010 [ 137.310400][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 137.315167][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 137.320137][ C1] do_syscall_64+0x9f/0x140 [ 137.324645][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.330578][ C1] [ 137.332893][ C1] Uninit was created at: [ 137.337125][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 137.342844][ C1] kmsan_slab_alloc+0x8e/0xe0 [ 137.347561][ C1] __kmalloc_node_track_caller+0xa4f/0x1470 [ 137.353470][ C1] __alloc_skb+0x4dd/0xe90 [ 137.357878][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 137.363077][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 137.368307][ C1] packet_sendmsg+0x6a12/0x99d0 [ 137.373163][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 137.378033][ C1] __sys_sendmmsg+0xa57/0x1010 [ 137.382933][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 137.387736][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 137.392595][ C1] do_syscall_64+0x9f/0x140 [ 137.397112][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.403036][ C1] ===================================================== [ 137.410122][ C1] ===================================================== [ 137.417077][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0xf5d/0x1480 [ 137.423962][ C1] CPU: 1 PID: 8440 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 137.434122][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.444196][ C1] Call Trace: [ 137.447483][ C1] [ 137.450452][ C1] dump_stack+0x24c/0x2e0 [ 137.454811][ C1] kmsan_report+0xfb/0x1e0 [ 137.459280][ C1] __msan_warning+0x5c/0xa0 [ 137.463914][ C1] ip_rcv_core+0xf5d/0x1480 [ 137.468477][ C1] ip_rcv+0xc7/0x820 [ 137.472395][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.477621][ C1] __netif_receive_skb+0x1ec/0x640 [ 137.482773][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.488432][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 137.494098][ C1] process_backlog+0x517/0xbd0 [ 137.498892][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.504734][ C1] ? rps_trigger_softirq+0x4d0/0x4d0 [ 137.510187][ C1] __napi_poll+0x13e/0xca0 [ 137.514641][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.520740][ C1] net_rx_action+0x726/0x14a0 [ 137.525447][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.531252][ C1] ? net_tx_action+0xd30/0xd30 [ 137.536006][ C1] __do_softirq+0x1b9/0x715 [ 137.540502][ C1] ? idle_cpu+0x9a/0x1d0 [ 137.544747][ C1] ? __irq_exit_rcu+0x83/0x280 [ 137.549534][ C1] do_softirq+0x123/0x1c0 [ 137.553863][ C1] [ 137.556818][ C1] __local_bh_enable_ip+0xa1/0xb0 [ 137.562144][ C1] local_bh_enable+0x36/0x40 [ 137.567066][ C1] __dev_queue_xmit+0x3b4a/0x4600 [ 137.572252][ C1] dev_queue_xmit+0x4b/0x60 [ 137.576764][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 137.582055][ C1] packet_sendmsg+0x86ee/0x99d0 [ 137.586907][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.592981][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.598283][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.603484][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.609155][ C1] ? process_slab+0x13a8/0x1b70 [ 137.614031][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 137.619960][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 137.626046][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 137.630970][ C1] ? packet_getsockopt+0x1120/0x1120 [ 137.636267][ C1] __sys_sendmmsg+0xa57/0x1010 [ 137.641042][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 137.647136][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.652344][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.657631][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 137.663899][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 137.670969][ C1] ? __msan_instrument_asm_store+0x107/0x130 [ 137.677503][ C1] ? kmsan_get_metadata+0x116/0x180 [ 137.682839][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 137.687669][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 137.692529][ C1] do_syscall_64+0x9f/0x140 [ 137.697040][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.702941][ C1] RIP: 0033:0x443e39 [ 137.706855][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 137.726463][ C1] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 137.734891][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 137.742881][ C1] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 137.750869][ C1] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 137.758837][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000210dd [ 137.766802][ C1] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 137.774781][ C1] [ 137.777132][ C1] Uninit was stored to memory at: [ 137.782155][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 137.787999][ C1] __msan_chain_origin+0x54/0xa0 [ 137.792939][ C1] iptunnel_xmit+0xbd6/0xf20 [ 137.797598][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 137.802995][ C1] geneve_xmit+0x2139/0x3c40 [ 137.807619][ C1] xmit_one+0x2b6/0x760 [ 137.811769][ C1] __dev_queue_xmit+0x3432/0x4600 [ 137.816788][ C1] dev_queue_xmit+0x4b/0x60 [ 137.821292][ C1] packet_sendmsg+0x86ee/0x99d0 [ 137.826146][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 137.831096][ C1] __sys_sendmmsg+0xa57/0x1010 [ 137.835880][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 137.840996][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 137.846022][ C1] do_syscall_64+0x9f/0x140 [ 137.850554][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.856664][ C1] [ 137.859011][ C1] Uninit was created at: [ 137.863251][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 137.869009][ C1] kmsan_slab_alloc+0x8e/0xe0 [ 137.873681][ C1] __kmalloc_node_track_caller+0xa4f/0x1470 [ 137.879583][ C1] __alloc_skb+0x4dd/0xe90 [ 137.884008][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 137.889201][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 137.894391][ C1] packet_sendmsg+0x6a12/0x99d0 [ 137.899253][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 137.904112][ C1] __sys_sendmmsg+0xa57/0x1010 [ 137.908866][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 137.913616][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 137.918458][ C1] do_syscall_64+0x9f/0x140 [ 137.922953][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 137.928901][ C1] ===================================================== [ 137.935967][ C1] ===================================================== [ 137.942922][ C1] BUG: KMSAN: uninit-value in ip_rcv_core+0x1068/0x1480 [ 137.950183][ C1] CPU: 1 PID: 8440 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 137.960358][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 137.970526][ C1] Call Trace: [ 137.973821][ C1] [ 137.976690][ C1] dump_stack+0x24c/0x2e0 [ 137.981059][ C1] kmsan_report+0xfb/0x1e0 [ 137.985502][ C1] __msan_warning+0x5c/0xa0 [ 137.990034][ C1] ip_rcv_core+0x1068/0x1480 [ 137.994655][ C1] ip_rcv+0xc7/0x820 [ 137.998578][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.003806][ C1] __netif_receive_skb+0x1ec/0x640 [ 138.008945][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 138.014610][ C1] ? ip_local_deliver_finish+0x370/0x370 [ 138.020292][ C1] process_backlog+0x517/0xbd0 [ 138.025088][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.030921][ C1] ? rps_trigger_softirq+0x4d0/0x4d0 [ 138.036225][ C1] __napi_poll+0x13e/0xca0 [ 138.040640][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.046728][ C1] net_rx_action+0x726/0x14a0 [ 138.051401][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.057243][ C1] ? net_tx_action+0xd30/0xd30 [ 138.062032][ C1] __do_softirq+0x1b9/0x715 [ 138.066549][ C1] ? idle_cpu+0x9a/0x1d0 [ 138.070820][ C1] ? __irq_exit_rcu+0x83/0x280 [ 138.075598][ C1] do_softirq+0x123/0x1c0 [ 138.079922][ C1] [ 138.082849][ C1] __local_bh_enable_ip+0xa1/0xb0 [ 138.087890][ C1] local_bh_enable+0x36/0x40 [ 138.092474][ C1] __dev_queue_xmit+0x3b4a/0x4600 [ 138.097496][ C1] dev_queue_xmit+0x4b/0x60 [ 138.101996][ C1] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 138.107301][ C1] packet_sendmsg+0x86ee/0x99d0 [ 138.112266][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.118323][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.123518][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.128731][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 138.134356][ C1] ? process_slab+0x13a8/0x1b70 [ 138.139222][ C1] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.145079][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.156173][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 138.161203][ C1] ? packet_getsockopt+0x1120/0x1120 [ 138.166499][ C1] __sys_sendmmsg+0xa57/0x1010 [ 138.171307][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 138.177503][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.182708][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.188236][ C1] ? kmsan_internal_set_origin+0x85/0xc0 [ 138.193983][ C1] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 138.200083][ C1] ? __msan_instrument_asm_store+0x107/0x130 [ 138.206186][ C1] ? kmsan_get_metadata+0x116/0x180 [ 138.211646][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 138.216447][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 138.221301][ C1] do_syscall_64+0x9f/0x140 [ 138.225921][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.232160][ C1] RIP: 0033:0x443e39 [ 138.236062][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 138.255674][ C1] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 138.264658][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 138.272630][ C1] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 138.280607][ C1] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 138.288598][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000210dd [ 138.296965][ C1] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 138.304970][ C1] [ 138.307286][ C1] Uninit was stored to memory at: [ 138.312295][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 138.318359][ C1] __msan_chain_origin+0x54/0xa0 [ 138.323294][ C1] __ip_local_out+0x479/0x840 [ 138.327963][ C1] ip_local_out+0xa1/0x1e0 [ 138.332389][ C1] iptunnel_xmit+0x931/0xf20 [ 138.336973][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 138.342111][ C1] geneve_xmit+0x2139/0x3c40 [ 138.346691][ C1] xmit_one+0x2b6/0x760 [ 138.350839][ C1] __dev_queue_xmit+0x3432/0x4600 [ 138.356039][ C1] dev_queue_xmit+0x4b/0x60 [ 138.360554][ C1] packet_sendmsg+0x86ee/0x99d0 [ 138.365400][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 138.370245][ C1] __sys_sendmmsg+0xa57/0x1010 [ 138.375024][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 138.379780][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 138.384627][ C1] do_syscall_64+0x9f/0x140 [ 138.389132][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.395022][ C1] [ 138.397343][ C1] Uninit was stored to memory at: [ 138.402917][ C1] kmsan_internal_chain_origin+0xad/0x130 [ 138.408900][ C1] __msan_chain_origin+0x54/0xa0 [ 138.413864][ C1] iptunnel_xmit+0xbd6/0xf20 [ 138.418495][ C1] udp_tunnel_xmit_skb+0x526/0x640 [ 138.423632][ C1] geneve_xmit+0x2139/0x3c40 [ 138.428469][ C1] xmit_one+0x2b6/0x760 [ 138.432740][ C1] __dev_queue_xmit+0x3432/0x4600 [ 138.437766][ C1] dev_queue_xmit+0x4b/0x60 [ 138.442280][ C1] packet_sendmsg+0x86ee/0x99d0 [ 138.447415][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 138.452289][ C1] __sys_sendmmsg+0xa57/0x1010 [ 138.457207][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 138.462207][ C1] __x64_sys_sendmmsg+0x56/0x70 [ 138.467399][ C1] do_syscall_64+0x9f/0x140 [ 138.471908][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.477929][ C1] [ 138.480259][ C1] Uninit was created at: [ 138.484610][ C1] kmsan_internal_poison_shadow+0x5c/0xf0 [ 138.490362][ C1] kmsan_slab_alloc+0x8e/0xe0 [ 138.495037][ C1] __kmalloc_node_track_caller+0xa4f/0x1470 [ 138.500943][ C1] __alloc_skb+0x4dd/0xe90 [ 138.505460][ C1] alloc_skb_with_frags+0x1f3/0xc10 [ 138.510879][ C1] sock_alloc_send_pskb+0xdc1/0xf90 [ 138.516094][ C1] packet_sendmsg+0x6a12/0x99d0 [ 138.520951][ C1] ____sys_sendmsg+0xcfc/0x12f0 [ 138.525842][ C1] __sys_sendmmsg+0xa57/0x1010 [ 138.530614][ C1] __se_sys_sendmmsg+0xbd/0xe0 [ 138.535386][ C1] __x64_sys_sendmmsg+0x56/0x70 executing program [ 138.540668][ C1] do_syscall_64+0x9f/0x140 [ 138.545181][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.551306][ C1] ===================================================== [ 138.596476][ C0] ===================================================== [ 138.603455][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 138.610346][ C0] CPU: 0 PID: 8441 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 138.620884][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.630960][ C0] Call Trace: [ 138.634286][ C0] [ 138.637264][ C0] dump_stack+0x24c/0x2e0 [ 138.641633][ C0] kmsan_report+0xfb/0x1e0 [ 138.646424][ C0] __msan_warning+0x5c/0xa0 [ 138.651001][ C0] ip_rcv_core+0xf4c/0x1480 [ 138.655939][ C0] ip_rcv+0xc7/0x820 [ 138.660201][ C0] ? kmsan_get_metadata+0x116/0x180 [ 138.665524][ C0] __netif_receive_skb+0x1ec/0x640 [ 138.670685][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 138.676544][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 138.682194][ C0] process_backlog+0x517/0xbd0 [ 138.687433][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 138.692975][ C0] __napi_poll+0x13e/0xca0 [ 138.697394][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.703547][ C0] net_rx_action+0x726/0x14a0 [ 138.708346][ C0] ? net_tx_action+0xd30/0xd30 [ 138.713174][ C0] __do_softirq+0x1b9/0x715 [ 138.718040][ C0] ? idle_cpu+0x9a/0x1d0 [ 138.722297][ C0] ? __irq_exit_rcu+0x83/0x280 [ 138.727094][ C0] do_softirq+0x123/0x1c0 [ 138.731696][ C0] [ 138.734729][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 138.739762][ C0] local_bh_enable+0x36/0x40 [ 138.744388][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 138.749606][ C0] dev_queue_xmit+0x4b/0x60 [ 138.754369][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 138.759657][ C0] packet_sendmsg+0x86ee/0x99d0 [ 138.764515][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.771064][ C0] ? kmsan_get_metadata+0x116/0x180 [ 138.776297][ C0] ? kmsan_get_metadata+0x116/0x180 [ 138.781587][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 138.787326][ C0] ? process_slab+0x13a8/0x1b70 [ 138.792277][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.798093][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.804521][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 138.809458][ C0] ? packet_getsockopt+0x1120/0x1120 [ 138.814742][ C0] __sys_sendmmsg+0xa57/0x1010 [ 138.819535][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 138.825718][ C0] ? kmsan_get_metadata+0x116/0x180 [ 138.831304][ C0] ? kmsan_get_metadata+0x116/0x180 [ 138.836511][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 138.842314][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 138.848462][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 138.854673][ C0] ? kmsan_get_metadata+0x116/0x180 [ 138.859918][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 138.864895][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 138.869742][ C0] do_syscall_64+0x9f/0x140 [ 138.874335][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.880456][ C0] RIP: 0033:0x443e39 [ 138.884684][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 138.904384][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 138.912800][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 138.920820][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 138.928851][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 138.936943][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000002178a [ 138.944916][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 138.952902][ C0] [ 138.955227][ C0] Uninit was stored to memory at: [ 138.960228][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 138.966050][ C0] __msan_chain_origin+0x54/0xa0 [ 138.971185][ C0] iptunnel_xmit+0xbd6/0xf20 [ 138.975886][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 138.980992][ C0] geneve_xmit+0x2139/0x3c40 [ 138.985578][ C0] xmit_one+0x2b6/0x760 [ 138.989723][ C0] __dev_queue_xmit+0x3432/0x4600 [ 138.994823][ C0] dev_queue_xmit+0x4b/0x60 [ 138.999400][ C0] packet_sendmsg+0x86ee/0x99d0 [ 139.004778][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 139.009743][ C0] __sys_sendmmsg+0xa57/0x1010 [ 139.014501][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 139.019280][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 139.024120][ C0] do_syscall_64+0x9f/0x140 [ 139.028614][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 139.034495][ C0] [ 139.036804][ C0] Uninit was created at: [ 139.041021][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 139.046760][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 139.051428][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 139.057317][ C0] __alloc_skb+0x4dd/0xe90 [ 139.061723][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 139.067107][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 139.072348][ C0] packet_sendmsg+0x6a12/0x99d0 [ 139.077192][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 139.082054][ C0] __sys_sendmmsg+0xa57/0x1010 [ 139.086831][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 139.091689][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 139.096548][ C0] do_syscall_64+0x9f/0x140 [ 139.101085][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 139.106986][ C0] ===================================================== [ 139.114320][ C0] ===================================================== [ 139.121283][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf5d/0x1480 [ 139.128170][ C0] CPU: 0 PID: 8441 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 139.138345][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 139.148420][ C0] Call Trace: [ 139.151712][ C0] [ 139.154657][ C0] dump_stack+0x24c/0x2e0 [ 139.159020][ C0] kmsan_report+0xfb/0x1e0 [ 139.163610][ C0] __msan_warning+0x5c/0xa0 [ 139.168143][ C0] ip_rcv_core+0xf5d/0x1480 [ 139.172732][ C0] ip_rcv+0xc7/0x820 [ 139.176678][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.181922][ C0] __netif_receive_skb+0x1ec/0x640 [ 139.187076][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 139.192757][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 139.198570][ C0] process_backlog+0x517/0xbd0 [ 139.203365][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 139.208655][ C0] __napi_poll+0x13e/0xca0 [ 139.213170][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 139.219340][ C0] net_rx_action+0x726/0x14a0 [ 139.224056][ C0] ? net_tx_action+0xd30/0xd30 [ 139.228828][ C0] __do_softirq+0x1b9/0x715 [ 139.233327][ C0] ? idle_cpu+0x9a/0x1d0 [ 139.237572][ C0] ? __irq_exit_rcu+0x83/0x280 [ 139.242337][ C0] do_softirq+0x123/0x1c0 [ 139.246713][ C0] [ 139.249645][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 139.254666][ C0] local_bh_enable+0x36/0x40 [ 139.259257][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 139.264299][ C0] dev_queue_xmit+0x4b/0x60 [ 139.268801][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 139.274179][ C0] packet_sendmsg+0x86ee/0x99d0 [ 139.279184][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 139.285382][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.290595][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.295802][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 139.301447][ C0] ? process_slab+0x13a8/0x1b70 [ 139.306299][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 139.312103][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 139.318239][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 139.323126][ C0] ? packet_getsockopt+0x1120/0x1120 [ 139.328508][ C0] __sys_sendmmsg+0xa57/0x1010 [ 139.333682][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 139.339769][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.344977][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.350170][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 139.355804][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 139.361879][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 139.368101][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.373331][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 139.378190][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 139.383071][ C0] do_syscall_64+0x9f/0x140 [ 139.387568][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 139.394066][ C0] RIP: 0033:0x443e39 [ 139.397979][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 139.417760][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 139.426277][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 139.434255][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 139.442770][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 139.450768][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000002178a [ 139.458917][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 139.466938][ C0] [ 139.469503][ C0] Uninit was stored to memory at: [ 139.474725][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 139.480610][ C0] __msan_chain_origin+0x54/0xa0 [ 139.485573][ C0] iptunnel_xmit+0xbd6/0xf20 [ 139.490275][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 139.495404][ C0] geneve_xmit+0x2139/0x3c40 [ 139.499994][ C0] xmit_one+0x2b6/0x760 [ 139.504168][ C0] __dev_queue_xmit+0x3432/0x4600 [ 139.509204][ C0] dev_queue_xmit+0x4b/0x60 [ 139.513886][ C0] packet_sendmsg+0x86ee/0x99d0 [ 139.518731][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 139.523588][ C0] __sys_sendmmsg+0xa57/0x1010 [ 139.528344][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 139.533121][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 139.538085][ C0] do_syscall_64+0x9f/0x140 [ 139.542595][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 139.548508][ C0] [ 139.550838][ C0] Uninit was created at: [ 139.555254][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 139.560993][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 139.565790][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 139.571679][ C0] __alloc_skb+0x4dd/0xe90 [ 139.576267][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 139.581466][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 139.586745][ C0] packet_sendmsg+0x6a12/0x99d0 [ 139.591623][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 139.596605][ C0] __sys_sendmmsg+0xa57/0x1010 [ 139.601397][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 139.606154][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 139.610997][ C0] do_syscall_64+0x9f/0x140 [ 139.615490][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 139.621376][ C0] ===================================================== [ 139.628480][ C0] ===================================================== [ 139.635537][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0x1068/0x1480 [ 139.642601][ C0] CPU: 0 PID: 8441 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 139.652869][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 139.663123][ C0] Call Trace: [ 139.666547][ C0] [ 139.669607][ C0] dump_stack+0x24c/0x2e0 [ 139.674239][ C0] kmsan_report+0xfb/0x1e0 [ 139.678703][ C0] __msan_warning+0x5c/0xa0 [ 139.683256][ C0] ip_rcv_core+0x1068/0x1480 [ 139.687878][ C0] ip_rcv+0xc7/0x820 [ 139.691906][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.697159][ C0] __netif_receive_skb+0x1ec/0x640 [ 139.702309][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 139.707997][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 139.714808][ C0] process_backlog+0x517/0xbd0 [ 139.719630][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 139.725068][ C0] __napi_poll+0x13e/0xca0 [ 139.729541][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 139.735948][ C0] net_rx_action+0x726/0x14a0 [ 139.740989][ C0] ? net_tx_action+0xd30/0xd30 [ 139.745780][ C0] __do_softirq+0x1b9/0x715 [ 139.750313][ C0] ? idle_cpu+0x9a/0x1d0 [ 139.754562][ C0] ? __irq_exit_rcu+0x83/0x280 [ 139.759339][ C0] do_softirq+0x123/0x1c0 [ 139.763686][ C0] [ 139.766609][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 139.771681][ C0] local_bh_enable+0x36/0x40 [ 139.776279][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 139.781628][ C0] dev_queue_xmit+0x4b/0x60 [ 139.786366][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 139.791668][ C0] packet_sendmsg+0x86ee/0x99d0 [ 139.796700][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 139.802889][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.808094][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.813300][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 139.818941][ C0] ? process_slab+0x13a8/0x1b70 [ 139.823799][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 139.830006][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 139.836218][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 139.841112][ C0] ? packet_getsockopt+0x1120/0x1120 [ 139.846405][ C0] __sys_sendmmsg+0xa57/0x1010 [ 139.851185][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 139.857386][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.862596][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.868512][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 139.874164][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 139.880230][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 139.886318][ C0] ? kmsan_get_metadata+0x116/0x180 [ 139.891521][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 139.896300][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 139.901189][ C0] do_syscall_64+0x9f/0x140 [ 139.905703][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 139.911882][ C0] RIP: 0033:0x443e39 [ 139.915809][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 139.935679][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 139.944100][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 139.952092][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 139.960080][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 139.968047][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000002178a [ 139.976013][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 139.984012][ C0] [ 139.986325][ C0] Uninit was stored to memory at: [ 139.991348][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 139.997087][ C0] __msan_chain_origin+0x54/0xa0 [ 140.002020][ C0] __ip_local_out+0x479/0x840 [ 140.006728][ C0] ip_local_out+0xa1/0x1e0 [ 140.011137][ C0] iptunnel_xmit+0x931/0xf20 [ 140.015722][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 140.020842][ C0] geneve_xmit+0x2139/0x3c40 [ 140.025464][ C0] xmit_one+0x2b6/0x760 [ 140.029642][ C0] __dev_queue_xmit+0x3432/0x4600 [ 140.034666][ C0] dev_queue_xmit+0x4b/0x60 [ 140.039193][ C0] packet_sendmsg+0x86ee/0x99d0 [ 140.044070][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 140.048917][ C0] __sys_sendmmsg+0xa57/0x1010 [ 140.053775][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 140.058544][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 140.063395][ C0] do_syscall_64+0x9f/0x140 [ 140.067918][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 140.073867][ C0] [ 140.076191][ C0] Uninit was stored to memory at: [ 140.081332][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 140.087238][ C0] __msan_chain_origin+0x54/0xa0 [ 140.092185][ C0] iptunnel_xmit+0xbd6/0xf20 [ 140.096779][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 140.102009][ C0] geneve_xmit+0x2139/0x3c40 [ 140.106641][ C0] xmit_one+0x2b6/0x760 [ 140.110814][ C0] __dev_queue_xmit+0x3432/0x4600 [ 140.115839][ C0] dev_queue_xmit+0x4b/0x60 [ 140.120380][ C0] packet_sendmsg+0x86ee/0x99d0 [ 140.125284][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 140.130144][ C0] __sys_sendmmsg+0xa57/0x1010 [ 140.134912][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 140.139944][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 140.144784][ C0] do_syscall_64+0x9f/0x140 [ 140.149286][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 140.155172][ C0] [ 140.157493][ C0] Uninit was created at: [ 140.161715][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 140.167539][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 140.172210][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 140.178096][ C0] __alloc_skb+0x4dd/0xe90 [ 140.182592][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 140.187785][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 140.193016][ C0] packet_sendmsg+0x6a12/0x99d0 [ 140.197857][ C0] ____sys_sendmsg+0xcfc/0x12f0 executing program [ 140.202705][ C0] __sys_sendmmsg+0xa57/0x1010 [ 140.207485][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 140.212240][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 140.217080][ C0] do_syscall_64+0x9f/0x140 [ 140.221596][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 140.227613][ C0] ===================================================== [ 140.267835][ C0] ===================================================== [ 140.274842][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf4c/0x1480 [ 140.281746][ C0] CPU: 0 PID: 8442 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 140.291943][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 140.302019][ C0] Call Trace: [ 140.305317][ C0] [ 140.308183][ C0] dump_stack+0x24c/0x2e0 [ 140.312548][ C0] kmsan_report+0xfb/0x1e0 [ 140.316997][ C0] __msan_warning+0x5c/0xa0 [ 140.321528][ C0] ip_rcv_core+0xf4c/0x1480 [ 140.326066][ C0] ip_rcv+0xc7/0x820 [ 140.329987][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.335211][ C0] __netif_receive_skb+0x1ec/0x640 [ 140.340347][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 140.346223][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 140.352179][ C0] process_backlog+0x517/0xbd0 [ 140.356992][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.362367][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 140.367655][ C0] __napi_poll+0x13e/0xca0 [ 140.372075][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.378188][ C0] net_rx_action+0x726/0x14a0 [ 140.382987][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 140.388816][ C0] ? net_tx_action+0xd30/0xd30 [ 140.393796][ C0] __do_softirq+0x1b9/0x715 [ 140.398562][ C0] ? idle_cpu+0x9a/0x1d0 [ 140.402811][ C0] ? __irq_exit_rcu+0x83/0x280 [ 140.407582][ C0] do_softirq+0x123/0x1c0 [ 140.411981][ C0] [ 140.414917][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 140.419951][ C0] local_bh_enable+0x36/0x40 [ 140.424860][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 140.429891][ C0] dev_queue_xmit+0x4b/0x60 [ 140.434398][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 140.439705][ C0] packet_sendmsg+0x86ee/0x99d0 [ 140.444652][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.450719][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.455913][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.461104][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 140.466742][ C0] ? process_slab+0x13a8/0x1b70 [ 140.471601][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 140.477976][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.484063][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 140.488915][ C0] ? packet_getsockopt+0x1120/0x1120 [ 140.494197][ C0] __sys_sendmmsg+0xa57/0x1010 [ 140.498965][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 140.505030][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.510256][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 140.515930][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 140.522041][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 140.528031][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.533241][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 140.538051][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 140.542897][ C0] do_syscall_64+0x9f/0x140 [ 140.547498][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 140.553390][ C0] RIP: 0033:0x443e39 [ 140.557283][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 140.576937][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 140.585363][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 140.593369][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 140.601422][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 140.609390][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000021e35 [ 140.617426][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 140.625635][ C0] [ 140.627950][ C0] Uninit was stored to memory at: [ 140.632956][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 140.638686][ C0] __msan_chain_origin+0x54/0xa0 [ 140.643636][ C0] iptunnel_xmit+0xbd6/0xf20 [ 140.648222][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 140.653454][ C0] geneve_xmit+0x2139/0x3c40 [ 140.658074][ C0] xmit_one+0x2b6/0x760 [ 140.662248][ C0] __dev_queue_xmit+0x3432/0x4600 [ 140.667275][ C0] dev_queue_xmit+0x4b/0x60 [ 140.671809][ C0] packet_sendmsg+0x86ee/0x99d0 [ 140.677201][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 140.682072][ C0] __sys_sendmmsg+0xa57/0x1010 [ 140.686847][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 140.692071][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 140.697127][ C0] do_syscall_64+0x9f/0x140 [ 140.701633][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 140.707520][ C0] [ 140.709833][ C0] Uninit was created at: [ 140.714069][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 140.719812][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 140.724519][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 140.730408][ C0] __alloc_skb+0x4dd/0xe90 [ 140.734814][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 140.740017][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 140.745295][ C0] packet_sendmsg+0x6a12/0x99d0 [ 140.750139][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 140.754994][ C0] __sys_sendmmsg+0xa57/0x1010 [ 140.759749][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 140.764536][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 140.769519][ C0] do_syscall_64+0x9f/0x140 [ 140.774025][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 140.779925][ C0] ===================================================== [ 140.787021][ C0] ===================================================== [ 140.793997][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0xf5d/0x1480 [ 140.800880][ C0] CPU: 0 PID: 8442 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 140.811054][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 140.821164][ C0] Call Trace: [ 140.824455][ C0] [ 140.827305][ C0] dump_stack+0x24c/0x2e0 [ 140.831663][ C0] kmsan_report+0xfb/0x1e0 [ 140.836107][ C0] __msan_warning+0x5c/0xa0 [ 140.840641][ C0] ip_rcv_core+0xf5d/0x1480 [ 140.845175][ C0] ip_rcv+0xc7/0x820 [ 140.849097][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.854328][ C0] __netif_receive_skb+0x1ec/0x640 [ 140.859467][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 140.865128][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 140.870840][ C0] process_backlog+0x517/0xbd0 [ 140.875644][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.881055][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 140.886515][ C0] __napi_poll+0x13e/0xca0 [ 140.890967][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.897025][ C0] net_rx_action+0x726/0x14a0 [ 140.901701][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 140.907553][ C0] ? net_tx_action+0xd30/0xd30 [ 140.912344][ C0] __do_softirq+0x1b9/0x715 [ 140.916843][ C0] ? idle_cpu+0x9a/0x1d0 [ 140.921175][ C0] ? __irq_exit_rcu+0x83/0x280 [ 140.925948][ C0] do_softirq+0x123/0x1c0 [ 140.930314][ C0] [ 140.933239][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 140.938326][ C0] local_bh_enable+0x36/0x40 [ 140.942928][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 140.947963][ C0] dev_queue_xmit+0x4b/0x60 [ 140.952488][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 140.957855][ C0] packet_sendmsg+0x86ee/0x99d0 [ 140.962715][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.968805][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.974167][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.979410][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 140.985042][ C0] ? process_slab+0x13a8/0x1b70 [ 140.989907][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 140.995706][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.001772][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 141.006620][ C0] ? packet_getsockopt+0x1120/0x1120 [ 141.011899][ C0] __sys_sendmmsg+0xa57/0x1010 [ 141.016662][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 141.022728][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.027959][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 141.033590][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 141.039667][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 141.045733][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.050944][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 141.055723][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 141.060578][ C0] do_syscall_64+0x9f/0x140 [ 141.065079][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 141.071069][ C0] RIP: 0033:0x443e39 [ 141.075045][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 141.094902][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 141.103317][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 141.111365][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 141.119430][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 141.127419][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000021e35 [ 141.135426][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 141.143884][ C0] [ 141.146200][ C0] Uninit was stored to memory at: [ 141.151215][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 141.156936][ C0] __msan_chain_origin+0x54/0xa0 [ 141.161867][ C0] iptunnel_xmit+0xbd6/0xf20 [ 141.166454][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 141.171575][ C0] geneve_xmit+0x2139/0x3c40 [ 141.176163][ C0] xmit_one+0x2b6/0x760 [ 141.180316][ C0] __dev_queue_xmit+0x3432/0x4600 [ 141.185364][ C0] dev_queue_xmit+0x4b/0x60 [ 141.189856][ C0] packet_sendmsg+0x86ee/0x99d0 [ 141.194715][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 141.199560][ C0] __sys_sendmmsg+0xa57/0x1010 [ 141.204313][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 141.209105][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 141.213943][ C0] do_syscall_64+0x9f/0x140 [ 141.218438][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 141.224712][ C0] [ 141.227151][ C0] Uninit was created at: [ 141.231404][ C0] kmsan_internal_poison_shadow+0x5c/0xf0 [ 141.237132][ C0] kmsan_slab_alloc+0x8e/0xe0 [ 141.241928][ C0] __kmalloc_node_track_caller+0xa4f/0x1470 [ 141.247968][ C0] __alloc_skb+0x4dd/0xe90 [ 141.252894][ C0] alloc_skb_with_frags+0x1f3/0xc10 [ 141.258172][ C0] sock_alloc_send_pskb+0xdc1/0xf90 [ 141.263428][ C0] packet_sendmsg+0x6a12/0x99d0 [ 141.268470][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 141.273581][ C0] __sys_sendmmsg+0xa57/0x1010 [ 141.278347][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 141.283146][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 141.290508][ C0] do_syscall_64+0x9f/0x140 [ 141.295128][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 141.301191][ C0] ===================================================== [ 141.308688][ C0] ===================================================== [ 141.315656][ C0] BUG: KMSAN: uninit-value in ip_rcv_core+0x1068/0x1480 [ 141.322630][ C0] CPU: 0 PID: 8442 Comm: syz-executor002 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 141.332804][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 141.343077][ C0] Call Trace: [ 141.346372][ C0] [ 141.349335][ C0] dump_stack+0x24c/0x2e0 [ 141.353720][ C0] kmsan_report+0xfb/0x1e0 [ 141.358168][ C0] __msan_warning+0x5c/0xa0 [ 141.362697][ C0] ip_rcv_core+0x1068/0x1480 [ 141.367315][ C0] ip_rcv+0xc7/0x820 [ 141.371234][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.376629][ C0] __netif_receive_skb+0x1ec/0x640 [ 141.381769][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 141.387428][ C0] ? ip_local_deliver_finish+0x370/0x370 [ 141.393090][ C0] process_backlog+0x517/0xbd0 [ 141.397877][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.403251][ C0] ? rps_trigger_softirq+0x4d0/0x4d0 [ 141.408536][ C0] __napi_poll+0x13e/0xca0 [ 141.412977][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.419039][ C0] net_rx_action+0x726/0x14a0 [ 141.423731][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 141.429829][ C0] ? net_tx_action+0xd30/0xd30 [ 141.434587][ C0] __do_softirq+0x1b9/0x715 [ 141.439111][ C0] ? idle_cpu+0x9a/0x1d0 [ 141.443346][ C0] ? __irq_exit_rcu+0x83/0x280 [ 141.448102][ C0] do_softirq+0x123/0x1c0 [ 141.452439][ C0] [ 141.455359][ C0] __local_bh_enable_ip+0xa1/0xb0 [ 141.460398][ C0] local_bh_enable+0x36/0x40 [ 141.464993][ C0] __dev_queue_xmit+0x3b4a/0x4600 [ 141.470022][ C0] dev_queue_xmit+0x4b/0x60 [ 141.474527][ C0] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 141.479820][ C0] packet_sendmsg+0x86ee/0x99d0 [ 141.484687][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.490806][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.496012][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.501231][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 141.506867][ C0] ? process_slab+0x13a8/0x1b70 [ 141.511726][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 141.517721][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.523845][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 141.528708][ C0] ? packet_getsockopt+0x1120/0x1120 [ 141.533999][ C0] __sys_sendmmsg+0xa57/0x1010 [ 141.538791][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 141.544878][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.550099][ C0] ? kmsan_internal_set_origin+0x85/0xc0 [ 141.555819][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 141.561894][ C0] ? __msan_instrument_asm_store+0x107/0x130 [ 141.567895][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.573094][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 141.577944][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 141.582986][ C0] do_syscall_64+0x9f/0x140 [ 141.587503][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 141.593498][ C0] RIP: 0033:0x443e39 [ 141.597383][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 141.617000][ C0] RSP: 002b:00007ffc41daf0a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 141.625517][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000443e39 [ 141.633586][ C0] RDX: 0000000000000001 RSI: 0000000020000b40 RDI: 0000000000000003 [ 141.641567][ C0] RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff [ 141.649544][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000021e35 [ 141.657543][ C0] R13: 00007ffc41daf0d0 R14: 00007ffc41daf0c0 R15: 00007ffc41daf0b4 [ 141.665519][ C0] [ 141.667833][ C0] Uninit was stored to memory at: [ 141.672836][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 141.678557][ C0] __msan_chain_origin+0x54/0xa0 [ 141.683491][ C0] __ip_local_out+0x479/0x840 [ 141.688163][ C0] ip_local_out+0xa1/0x1e0 [ 141.692569][ C0] iptunnel_xmit+0x931/0xf20 [ 141.697154][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 141.702266][ C0] geneve_xmit+0x2139/0x3c40 [ 141.706865][ C0] xmit_one+0x2b6/0x760 [ 141.711023][ C0] __dev_queue_xmit+0x3432/0x4600 [ 141.716182][ C0] dev_queue_xmit+0x4b/0x60 [ 141.720697][ C0] packet_sendmsg+0x86ee/0x99d0 [ 141.725554][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 141.730400][ C0] __sys_sendmmsg+0xa57/0x1010 [ 141.735184][ C0] __se_sys_sendmmsg+0xbd/0xe0 [ 141.739981][ C0] __x64_sys_sendmmsg+0x56/0x70 [ 141.744907][ C0] do_syscall_64+0x9f/0x140 [ 141.749543][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 141.755488][ C0] [ 141.757935][ C0] Uninit was stored to memory at: [ 141.762949][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 141.768728][ C0] __msan_chain_origin+0x54/0xa0 [ 141.773705][ C0] iptunnel_xmit+0xbd6/0xf20 [ 141.778336][ C0] udp_tunnel_xmit_skb+0x526/0x640 [ 141.783578][ C0] geneve_xmit+0x2139/0x3c40 [ 141.788177][ C0] xmit_one+0x2b6/0x760 [ 141.792682][ C0] __dev_queue_xmit+0x3432/0x4600 [ 141.797837][ C0] dev_queue_xmit+0x4b/0x60 [ 141.802476][ C0] packet_sendmsg+0x86ee/0x99d0 [ 141.807391][ C0] ____sys_sendmsg+0xcfc/0x12f0 [ 141.812482][ C0] __sys_sendmmsg+0xa57/0x1010 [ 141.817246][ C0] __se_sys_sendmmsg+0xbd/0xe0