[ OK ] Started OpenBSD Secure Shell server. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.221' (ECDSA) to the list of known hosts. syzkaller login: [ 87.035342][ T8441] IPVS: ftp: loaded support on port[0] = 21 [ 87.201361][ T8441] chnl_net:caif_netlink_parms(): no params data found [ 87.388095][ T8441] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.395272][ T8441] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.404562][ T8441] device bridge_slave_0 entered promiscuous mode [ 87.414621][ T8441] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.421735][ T8441] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.431674][ T8441] device bridge_slave_1 entered promiscuous mode [ 87.466591][ T8441] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.480598][ T8441] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.516293][ T8441] team0: Port device team_slave_0 added [ 87.526398][ T8441] team0: Port device team_slave_1 added [ 87.554912][ T8441] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.561884][ T8441] 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. [ 87.589101][ T8441] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.601473][ T8441] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.608639][ T8441] 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. [ 87.634725][ T8441] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.708027][ T8441] device hsr_slave_0 entered promiscuous mode [ 87.763302][ T8441] device hsr_slave_1 entered promiscuous mode [ 87.989295][ T8441] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.028976][ T8441] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 88.087680][ T8441] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 88.147613][ T8441] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 88.304832][ T8441] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.324671][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.334590][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.350477][ T8441] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.363517][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 88.373106][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.382036][ T30] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.389328][ T30] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.414903][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 88.424234][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 88.433998][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.443659][ T30] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.450760][ T30] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.459670][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 88.469679][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 88.486128][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 88.496604][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.507029][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 88.524728][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 88.536797][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.556790][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 88.566072][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.583857][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 88.595204][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 88.607053][ T8441] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 88.640404][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 88.648768][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 88.669764][ T8441] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.698385][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 88.708754][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.741838][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 88.750711][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.766526][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.776346][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 88.786365][ T8441] device veth0_vlan entered promiscuous mode [ 88.803896][ T8441] device veth1_vlan entered promiscuous mode [ 88.840258][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 88.849157][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 88.859583][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 88.869101][ T30] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 88.885644][ T8441] device veth0_macvtap entered promiscuous mode [ 88.902603][ T8441] device veth1_macvtap entered promiscuous mode [ 88.931780][ T8441] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.939417][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 88.949571][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 88.958842][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 88.968258][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 88.986363][ T8441] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 89.005269][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 89.015450][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 89.238062][ T8441] ===================================================== [ 89.245041][ T8441] BUG: KMSAN: uninit-value in nf_conntrack_invert_icmp_tuple+0xaa/0x2c0 [ 89.253352][ T8441] CPU: 1 PID: 8441 Comm: syz-executor181 Not tainted 5.8.0-rc5-syzkaller #0 [ 89.262006][ T8441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.272135][ T8441] Call Trace: [ 89.275454][ T8441] dump_stack+0x1df/0x240 [ 89.279780][ T8441] kmsan_report+0xf7/0x1e0 [ 89.284191][ T8441] __msan_warning+0x58/0xa0 [ 89.288681][ T8441] nf_conntrack_invert_icmp_tuple+0xaa/0x2c0 [ 89.294650][ T8441] nf_ct_invert_tuple+0x346/0x590 [ 89.299664][ T8441] init_conntrack+0x116/0x1ff0 [ 89.304435][ T8441] nf_conntrack_in+0x1341/0x26b1 [ 89.309382][ T8441] ipv6_conntrack_local+0x68/0x80 [ 89.314407][ T8441] ? ipv6_conntrack_in+0x80/0x80 [ 89.319327][ T8441] nf_hook_slow+0x16e/0x400 [ 89.323842][ T8441] __ip6_local_out+0x56d/0x750 [ 89.328610][ T8441] ? __ip6_local_out+0x750/0x750 [ 89.333536][ T8441] ip6_local_out+0xa4/0x1d0 [ 89.338038][ T8441] ip6_push_pending_frames+0x213/0x4f0 [ 89.343490][ T8441] rawv6_sendmsg+0x4233/0x5c30 [ 89.348235][ T8441] ? is_module_text_address+0x4d/0x2a0 [ 89.353694][ T8441] ? __kernel_text_address+0x171/0x2d0 [ 89.359162][ T8441] ? kmsan_get_metadata+0x11d/0x180 [ 89.364355][ T8441] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 89.370152][ T8441] ? udp_cmsg_send+0x5d0/0x5d0 [ 89.374896][ T8441] ? compat_rawv6_ioctl+0x100/0x100 [ 89.380076][ T8441] inet_sendmsg+0x2d8/0x2e0 [ 89.384588][ T8441] ? inet_send_prepare+0x600/0x600 [ 89.389691][ T8441] kernel_sendmsg+0x384/0x440 [ 89.394359][ T8441] sock_no_sendpage+0x235/0x300 [ 89.399205][ T8441] ? sock_no_mmap+0x30/0x30 [ 89.403703][ T8441] sock_sendpage+0x1e1/0x2c0 [ 89.408284][ T8441] pipe_to_sendpage+0x38c/0x4c0 [ 89.413116][ T8441] ? sock_fasync+0x250/0x250 [ 89.417698][ T8441] __splice_from_pipe+0x565/0xf00 [ 89.422706][ T8441] ? generic_splice_sendpage+0x2d0/0x2d0 [ 89.428337][ T8441] generic_splice_sendpage+0x1d5/0x2d0 [ 89.433801][ T8441] ? iter_file_splice_write+0x1800/0x1800 [ 89.439499][ T8441] direct_splice_actor+0x1fd/0x580 [ 89.444612][ T8441] ? kmsan_get_metadata+0x4f/0x180 [ 89.450595][ T8441] splice_direct_to_actor+0x6b2/0xf50 [ 89.455948][ T8441] ? do_splice_direct+0x580/0x580 [ 89.460986][ T8441] do_splice_direct+0x342/0x580 [ 89.465840][ T8441] do_sendfile+0x101b/0x1d40 [ 89.470439][ T8441] __se_sys_sendfile64+0x2bb/0x360 [ 89.475549][ T8441] ? kmsan_get_metadata+0x4f/0x180 [ 89.480657][ T8441] __x64_sys_sendfile64+0x56/0x70 [ 89.485667][ T8441] do_syscall_64+0xb0/0x150 [ 89.490166][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.496037][ T8441] RIP: 0033:0x443519 [ 89.499904][ T8441] Code: Bad RIP value. [ 89.503945][ T8441] RSP: 002b:00007ffcbe60e278 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 89.512342][ T8441] RAX: ffffffffffffffda RBX: 00007ffcbe60e2d0 RCX: 0000000000443519 [ 89.520303][ T8441] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 [ 89.528254][ T8441] RBP: 00007ffcbe60e280 R08: 0000000000000012 R09: 0000000001bbbbbb [ 89.536216][ T8441] R10: 000000000000a808 R11: 0000000000000246 R12: 0000000000000003 [ 89.544165][ T8441] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 89.552124][ T8441] [ 89.554429][ T8441] Uninit was stored to memory at: [ 89.559446][ T8441] kmsan_internal_chain_origin+0xad/0x130 [ 89.565143][ T8441] __msan_chain_origin+0x50/0x90 [ 89.570058][ T8441] icmp_pkt_to_tuple+0x35a/0x400 [ 89.574971][ T8441] nf_ct_get_tuple+0xb9a/0x1530 [ 89.579798][ T8441] nf_conntrack_in+0x6e0/0x26b1 [ 89.584636][ T8441] ipv6_conntrack_local+0x68/0x80 [ 89.589639][ T8441] nf_hook_slow+0x16e/0x400 [ 89.594135][ T8441] __ip6_local_out+0x56d/0x750 [ 89.598884][ T8441] ip6_local_out+0xa4/0x1d0 [ 89.603377][ T8441] ip6_push_pending_frames+0x213/0x4f0 [ 89.608814][ T8441] rawv6_sendmsg+0x4233/0x5c30 [ 89.613556][ T8441] inet_sendmsg+0x2d8/0x2e0 [ 89.618042][ T8441] kernel_sendmsg+0x384/0x440 [ 89.622696][ T8441] sock_no_sendpage+0x235/0x300 [ 89.627540][ T8441] sock_sendpage+0x1e1/0x2c0 [ 89.632118][ T8441] pipe_to_sendpage+0x38c/0x4c0 [ 89.636947][ T8441] __splice_from_pipe+0x565/0xf00 [ 89.641959][ T8441] generic_splice_sendpage+0x1d5/0x2d0 [ 89.647395][ T8441] direct_splice_actor+0x1fd/0x580 [ 89.652485][ T8441] splice_direct_to_actor+0x6b2/0xf50 [ 89.657832][ T8441] do_splice_direct+0x342/0x580 [ 89.662663][ T8441] do_sendfile+0x101b/0x1d40 [ 89.667231][ T8441] __se_sys_sendfile64+0x2bb/0x360 [ 89.672341][ T8441] __x64_sys_sendfile64+0x56/0x70 [ 89.677381][ T8441] do_syscall_64+0xb0/0x150 [ 89.681873][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.687735][ T8441] [ 89.690038][ T8441] Uninit was stored to memory at: [ 89.695054][ T8441] kmsan_internal_chain_origin+0xad/0x130 [ 89.700752][ T8441] kmsan_memcpy_memmove_metadata+0x272/0x2e0 [ 89.706716][ T8441] kmsan_memcpy_metadata+0xb/0x10 [ 89.711724][ T8441] __msan_memcpy+0x43/0x50 [ 89.716119][ T8441] csum_partial_copy+0xae/0x100 [ 89.720959][ T8441] csum_and_copy_from_iter_full+0xdca/0x1800 [ 89.726918][ T8441] ip_generic_getfrag+0x1fb/0x3c0 [ 89.731921][ T8441] raw6_getfrag+0x552/0x600 [ 89.736405][ T8441] __ip6_append_data+0x507b/0x6320 [ 89.741493][ T8441] ip6_append_data+0x3cb/0x660 [ 89.746235][ T8441] rawv6_sendmsg+0x32bb/0x5c30 [ 89.750984][ T8441] inet_sendmsg+0x2d8/0x2e0 [ 89.755465][ T8441] kernel_sendmsg+0x384/0x440 [ 89.760117][ T8441] sock_no_sendpage+0x235/0x300 [ 89.764954][ T8441] sock_sendpage+0x1e1/0x2c0 [ 89.769533][ T8441] pipe_to_sendpage+0x38c/0x4c0 [ 89.774361][ T8441] __splice_from_pipe+0x565/0xf00 [ 89.779365][ T8441] generic_splice_sendpage+0x1d5/0x2d0 [ 89.784799][ T8441] direct_splice_actor+0x1fd/0x580 [ 89.789896][ T8441] splice_direct_to_actor+0x6b2/0xf50 [ 89.795246][ T8441] do_splice_direct+0x342/0x580 [ 89.800074][ T8441] do_sendfile+0x101b/0x1d40 [ 89.804642][ T8441] __se_sys_sendfile64+0x2bb/0x360 [ 89.809730][ T8441] __x64_sys_sendfile64+0x56/0x70 [ 89.814755][ T8441] do_syscall_64+0xb0/0x150 [ 89.819685][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.825557][ T8441] [ 89.827867][ T8441] Uninit was created at: [ 89.832088][ T8441] kmsan_save_stack_with_flags+0x3c/0x90 [ 89.837709][ T8441] kmsan_alloc_page+0xb9/0x180 [ 89.842452][ T8441] __alloc_pages_nodemask+0x56a2/0x5dc0 [ 89.847984][ T8441] alloc_pages_current+0x672/0x990 [ 89.853082][ T8441] push_pipe+0x605/0xb70 [ 89.857301][ T8441] iov_iter_get_pages_alloc+0x18a9/0x21c0 [ 89.862997][ T8441] do_splice_to+0x4fc/0x14f0 [ 89.867565][ T8441] splice_direct_to_actor+0x45c/0xf50 [ 89.872929][ T8441] do_splice_direct+0x342/0x580 [ 89.877761][ T8441] do_sendfile+0x101b/0x1d40 [ 89.882335][ T8441] __se_sys_sendfile64+0x2bb/0x360 [ 89.887443][ T8441] __x64_sys_sendfile64+0x56/0x70 [ 89.892447][ T8441] do_syscall_64+0xb0/0x150 [ 89.896931][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 89.902805][ T8441] ===================================================== [ 89.909711][ T8441] Disabling lock debugging due to kernel taint [ 89.915847][ T8441] Kernel panic - not syncing: panic_on_warn set ... [ 89.922414][ T8441] CPU: 1 PID: 8441 Comm: syz-executor181 Tainted: G B 5.8.0-rc5-syzkaller #0 [ 89.932457][ T8441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.942504][ T8441] Call Trace: [ 89.945782][ T8441] dump_stack+0x1df/0x240 [ 89.950101][ T8441] panic+0x3d5/0xc3e [ 89.954020][ T8441] kmsan_report+0x1df/0x1e0 [ 89.958521][ T8441] __msan_warning+0x58/0xa0 [ 89.963011][ T8441] nf_conntrack_invert_icmp_tuple+0xaa/0x2c0 [ 89.968994][ T8441] nf_ct_invert_tuple+0x346/0x590 [ 89.974008][ T8441] init_conntrack+0x116/0x1ff0 [ 89.978772][ T8441] nf_conntrack_in+0x1341/0x26b1 [ 89.983729][ T8441] ipv6_conntrack_local+0x68/0x80 [ 89.988736][ T8441] ? ipv6_conntrack_in+0x80/0x80 [ 89.993655][ T8441] nf_hook_slow+0x16e/0x400 [ 89.998162][ T8441] __ip6_local_out+0x56d/0x750 [ 90.002923][ T8441] ? __ip6_local_out+0x750/0x750 [ 90.007849][ T8441] ip6_local_out+0xa4/0x1d0 [ 90.012362][ T8441] ip6_push_pending_frames+0x213/0x4f0 [ 90.017823][ T8441] rawv6_sendmsg+0x4233/0x5c30 [ 90.022575][ T8441] ? is_module_text_address+0x4d/0x2a0 [ 90.028027][ T8441] ? __kernel_text_address+0x171/0x2d0 [ 90.033495][ T8441] ? kmsan_get_metadata+0x11d/0x180 [ 90.038685][ T8441] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 90.044498][ T8441] ? udp_cmsg_send+0x5d0/0x5d0 [ 90.049241][ T8441] ? compat_rawv6_ioctl+0x100/0x100 [ 90.054424][ T8441] inet_sendmsg+0x2d8/0x2e0 [ 90.058915][ T8441] ? inet_send_prepare+0x600/0x600 [ 90.064020][ T8441] kernel_sendmsg+0x384/0x440 [ 90.068691][ T8441] sock_no_sendpage+0x235/0x300 [ 90.073550][ T8441] ? sock_no_mmap+0x30/0x30 [ 90.078051][ T8441] sock_sendpage+0x1e1/0x2c0 [ 90.082647][ T8441] pipe_to_sendpage+0x38c/0x4c0 [ 90.087477][ T8441] ? sock_fasync+0x250/0x250 [ 90.092063][ T8441] __splice_from_pipe+0x565/0xf00 [ 90.097094][ T8441] ? generic_splice_sendpage+0x2d0/0x2d0 [ 90.102758][ T8441] generic_splice_sendpage+0x1d5/0x2d0 [ 90.108215][ T8441] ? iter_file_splice_write+0x1800/0x1800 [ 90.113918][ T8441] direct_splice_actor+0x1fd/0x580 [ 90.119020][ T8441] ? kmsan_get_metadata+0x4f/0x180 [ 90.124131][ T8441] splice_direct_to_actor+0x6b2/0xf50 [ 90.129483][ T8441] ? do_splice_direct+0x580/0x580 [ 90.134514][ T8441] do_splice_direct+0x342/0x580 [ 90.139613][ T8441] do_sendfile+0x101b/0x1d40 [ 90.144219][ T8441] __se_sys_sendfile64+0x2bb/0x360 [ 90.149320][ T8441] ? kmsan_get_metadata+0x4f/0x180 [ 90.154424][ T8441] __x64_sys_sendfile64+0x56/0x70 [ 90.159448][ T8441] do_syscall_64+0xb0/0x150 [ 90.163940][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 90.169819][ T8441] RIP: 0033:0x443519 [ 90.173687][ T8441] Code: Bad RIP value. [ 90.177739][ T8441] RSP: 002b:00007ffcbe60e278 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 90.186138][ T8441] RAX: ffffffffffffffda RBX: 00007ffcbe60e2d0 RCX: 0000000000443519 [ 90.194086][ T8441] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 [ 90.202049][ T8441] RBP: 00007ffcbe60e280 R08: 0000000000000012 R09: 0000000001bbbbbb [ 90.209999][ T8441] R10: 000000000000a808 R11: 0000000000000246 R12: 0000000000000003 [ 90.218870][ T8441] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 90.228038][ T8441] Kernel Offset: 0x28800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 90.240080][ T8441] Rebooting in 86400 seconds..