Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 40.056670][ T27] audit: type=1400 audit(1586974244.789:8): avc: denied { execmem } for pid=6907 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 40.072338][ T6908] IPVS: ftp: loaded support on port[0] = 21 [ 40.393558][ T21] tipc: TX() has been purged, node left! [ 40.657892][ T6934] can: request_module (can-proto-0) failed. [ 43.584462][ T6934] can: request_module (can-proto-0) failed. [ 43.595731][ T6934] can: request_module (can-proto-0) failed. [ 43.633393][ T27] audit: type=1400 audit(1586974248.371:9): avc: denied { create } for pid=6883 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 Warning: Permanently added '10.128.10.27' (ECDSA) to the list of known hosts. 2020/04/15 18:10:55 parsed 1 programs 2020/04/15 18:10:56 executed programs: 0 [ 51.815396][ T27] audit: type=1400 audit(1586974256.544:10): avc: denied { execmem } for pid=7032 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 51.907629][ T7035] IPVS: ftp: loaded support on port[0] = 21 [ 51.921017][ T7034] IPVS: ftp: loaded support on port[0] = 21 [ 51.951191][ T7038] IPVS: ftp: loaded support on port[0] = 21 [ 51.976934][ T7042] IPVS: ftp: loaded support on port[0] = 21 [ 51.994016][ T7041] IPVS: ftp: loaded support on port[0] = 21 [ 52.031245][ T7043] IPVS: ftp: loaded support on port[0] = 21 [ 52.232633][ T7034] chnl_net:caif_netlink_parms(): no params data found [ 52.275982][ T7035] chnl_net:caif_netlink_parms(): no params data found [ 52.306765][ T7038] chnl_net:caif_netlink_parms(): no params data found [ 52.338480][ T7042] chnl_net:caif_netlink_parms(): no params data found [ 52.402904][ T7034] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.411333][ T7034] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.418981][ T7034] device bridge_slave_0 entered promiscuous mode [ 52.428345][ T7034] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.435536][ T7034] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.443639][ T7034] device bridge_slave_1 entered promiscuous mode [ 52.464289][ T7042] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.471749][ T7042] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.480015][ T7042] device bridge_slave_0 entered promiscuous mode [ 52.495842][ T7038] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.504588][ T7038] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.513283][ T7038] device bridge_slave_0 entered promiscuous mode [ 52.544237][ T7042] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.552032][ T7042] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.559977][ T7042] device bridge_slave_1 entered promiscuous mode [ 52.578179][ T7038] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.588015][ T7038] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.596729][ T7038] device bridge_slave_1 entered promiscuous mode [ 52.646227][ T7034] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.663211][ T7042] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.675569][ T7042] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.694755][ T7035] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.703816][ T7035] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.713898][ T7035] device bridge_slave_0 entered promiscuous mode [ 52.726104][ T7035] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.735259][ T7035] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.743321][ T7035] device bridge_slave_1 entered promiscuous mode [ 52.757835][ T7034] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.787379][ T7038] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.826137][ T7034] team0: Port device team_slave_0 added [ 52.832671][ T7041] chnl_net:caif_netlink_parms(): no params data found [ 52.843377][ T7038] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.857988][ T7042] team0: Port device team_slave_0 added [ 52.866034][ T7035] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.878970][ T7034] team0: Port device team_slave_1 added [ 52.911225][ T7042] team0: Port device team_slave_1 added [ 52.917238][ T7043] chnl_net:caif_netlink_parms(): no params data found [ 52.929387][ T7035] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.011833][ T7034] device hsr_slave_0 entered promiscuous mode [ 53.069287][ T7034] device hsr_slave_1 entered promiscuous mode [ 53.120451][ T7038] team0: Port device team_slave_0 added [ 53.153114][ T7038] team0: Port device team_slave_1 added [ 53.241411][ T7042] device hsr_slave_0 entered promiscuous mode [ 53.258959][ T7042] device hsr_slave_1 entered promiscuous mode [ 53.298726][ T7042] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 53.306446][ T7042] Cannot create hsr debugfs directory [ 53.314577][ T7035] team0: Port device team_slave_0 added [ 53.322668][ T7035] team0: Port device team_slave_1 added [ 53.340488][ T7043] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.347567][ T7043] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.369789][ T7043] device bridge_slave_0 entered promiscuous mode [ 53.441718][ T7038] device hsr_slave_0 entered promiscuous mode [ 53.462810][ T7038] device hsr_slave_1 entered promiscuous mode [ 53.518772][ T7038] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 53.526411][ T7038] Cannot create hsr debugfs directory [ 53.532637][ T7041] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.540441][ T7041] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.548151][ T7041] device bridge_slave_0 entered promiscuous mode [ 53.561215][ T7043] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.568294][ T7043] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.576362][ T7043] device bridge_slave_1 entered promiscuous mode [ 53.612983][ T7041] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.622362][ T7041] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.635952][ T7041] device bridge_slave_1 entered promiscuous mode [ 53.664415][ T7035] device hsr_slave_0 entered promiscuous mode [ 53.708977][ T7035] device hsr_slave_1 entered promiscuous mode [ 53.748607][ T7035] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 53.756263][ T7035] Cannot create hsr debugfs directory [ 53.775960][ T7043] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.790846][ T7034] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 53.844702][ T7034] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 53.901073][ T7043] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.922480][ T7034] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 53.981055][ T7034] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 54.022053][ T7041] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.048965][ T7041] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.081476][ T7043] team0: Port device team_slave_0 added [ 54.094286][ T7042] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 54.161885][ T7043] team0: Port device team_slave_1 added [ 54.170427][ T7041] team0: Port device team_slave_0 added [ 54.176299][ T7042] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 54.210372][ T7042] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 54.252796][ T7042] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 54.312314][ T7041] team0: Port device team_slave_1 added [ 54.402604][ T7043] device hsr_slave_0 entered promiscuous mode [ 54.448962][ T7043] device hsr_slave_1 entered promiscuous mode [ 54.498659][ T7043] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.506254][ T7043] Cannot create hsr debugfs directory [ 54.512454][ T7038] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 54.587417][ T7038] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 54.640343][ T7038] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 54.681830][ T7038] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 54.790666][ T7041] device hsr_slave_0 entered promiscuous mode [ 54.828652][ T7041] device hsr_slave_1 entered promiscuous mode [ 54.878388][ T7041] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.885980][ T7041] Cannot create hsr debugfs directory [ 54.957772][ T7035] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 55.003964][ T7035] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 55.045647][ T7034] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.065748][ T7035] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 55.124856][ T7035] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 55.224895][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.234907][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.258811][ T7042] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.271282][ T7041] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.351976][ T7034] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.365225][ T7041] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.420942][ T7041] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.472421][ T7041] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.516349][ T7042] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.532785][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.540911][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.577778][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.586347][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.596387][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.603630][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.614149][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.623237][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.631685][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.638820][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.646230][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.654983][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.664101][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.671213][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.678782][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.688316][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.696165][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.706725][ T7043] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 55.754114][ T7038] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.773295][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.782396][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.791408][ T2760] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.798515][ T2760] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.806984][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.815690][ T7043] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 55.849902][ T7043] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 55.907132][ T7043] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 55.969084][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.977604][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.987179][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.998253][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.006454][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.015032][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.023876][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.056233][ T7034] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.068935][ T7034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.083132][ T7038] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.094730][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.104501][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.114060][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.122485][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.131166][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.139311][ T3811] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.168187][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.176735][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.186829][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.195899][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.204554][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.213644][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.249486][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.257297][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.267882][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.278260][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.285320][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.294261][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.303426][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.312285][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.319402][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.327037][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.336367][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.354263][ T7042] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.366992][ T7042] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.390098][ T7034] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.397418][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 56.406684][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.416293][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.424977][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.434193][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.442594][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.450205][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.457639][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.466460][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.474895][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.483754][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.503755][ T7041] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.520525][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.540492][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.549518][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.562206][ T7035] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.579038][ T7043] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.612515][ T7038] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.622091][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.636313][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.645215][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.656277][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.664843][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.673401][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.690717][ T7043] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.700854][ T7042] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.713495][ T7035] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.723965][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.734321][ T2760] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.778762][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.787222][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.797631][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.804877][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.818383][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready 2020/04/15 18:11:01 executed programs: 6 [ 56.827082][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.839677][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.846741][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.856082][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.864559][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.872805][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.887224][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.904038][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.911240][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.935326][ T1611] ================================================================== [ 56.943539][ T1611] BUG: KASAN: slab-out-of-bounds in bacpy+0xe/0x10 [ 56.948038][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.950048][ T1611] Read of size 6 at addr ffff88809e7c3208 by task kworker/u5:0/1611 [ 56.966488][ T1611] [ 56.968378][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.968814][ T1611] CPU: 1 PID: 1611 Comm: kworker/u5:0 Not tainted 5.7.0-rc1-syzkaller #0 [ 56.977082][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.985248][ T1611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.985262][ T1611] Workqueue: hci0 hci_rx_work [ 56.985266][ T1611] Call Trace: [ 56.985278][ T1611] dump_stack+0x12d/0x187 [ 56.985287][ T1611] ? bacpy+0xe/0x10 [ 56.985291][ T1611] ? bacpy+0xe/0x10 [ 56.985299][ T1611] print_address_description.constprop.8.cold.10+0x9/0x31d [ 56.985303][ T1611] ? bacpy+0xe/0x10 [ 56.985307][ T1611] ? bacpy+0xe/0x10 [ 56.985314][ T1611] __kasan_report.cold.11+0x37/0x4e [ 56.985321][ T1611] ? bacpy+0xe/0x10 [ 56.985330][ T1611] kasan_report+0x38/0x50 [ 56.985340][ T1611] check_memory_region+0x1cc/0x1f0 [ 56.992446][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.002425][ T1611] memcpy+0x23/0x60 [ 57.002436][ T1611] bacpy+0xe/0x10 [ 57.002441][ T1611] hci_event_packet+0x3195/0x9652 [ 57.002456][ T1611] ? hci_cmd_complete_evt+0xb6a0/0xb6a0 [ 57.002466][ T1611] ? ret_from_fork+0x24/0x30 [ 57.002478][ T1611] ? stack_trace_save+0x82/0xb0 [ 57.002485][ T1611] ? stack_trace_consume_entry+0x170/0x170 [ 57.002495][ T1611] ? unwind_next_frame+0x3e/0x50 [ 57.100508][ T1611] ? save_trace+0x45/0xab0 [ 57.104918][ T1611] ? __kasan_check_write+0x14/0x20 [ 57.110038][ T1611] ? lockdep_unlock+0x115/0x1b0 [ 57.114876][ T1611] ? __lock_acquire+0x2c81/0x3bf0 [ 57.119891][ T1611] ? stack_trace_consume_entry+0x170/0x170 [ 57.125674][ T1611] ? save_trace+0x5ce/0xab0 [ 57.130162][ T1611] ? mark_held_locks+0x130/0x130 [ 57.136064][ T1611] ? lockdep_unlock+0x115/0x1b0 [ 57.140913][ T1611] ? find_held_lock+0x36/0x1d0 [ 57.145686][ T1611] ? __kasan_check_read+0x11/0x20 [ 57.150706][ T1611] ? mark_lock+0xbf/0x630 [ 57.155035][ T1611] ? mark_held_locks+0xb8/0x130 [ 57.159888][ T1611] ? _raw_spin_unlock_irqrestore+0x7d/0xd0 [ 57.165818][ T1611] ? skb_dequeue+0x14d/0x1f0 [ 57.170400][ T1611] ? lockdep_hardirqs_on+0x481/0x620 [ 57.175774][ T1611] ? _raw_spin_unlock_irqrestore+0x7d/0xd0 [ 57.181578][ T1611] ? trace_hardirqs_on+0x28/0x1a0 [ 57.186594][ T1611] hci_rx_work+0x18e/0x950 [ 57.191293][ T1611] ? hci_rx_work+0x18e/0x950 [ 57.195905][ T1611] ? rcu_read_lock_any_held.part.10+0x50/0x50 [ 57.201957][ T1611] ? trace_hardirqs_on+0x28/0x1a0 [ 57.206986][ T1611] process_one_work+0x893/0x1690 [ 57.211920][ T1611] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 57.217483][ T1611] worker_thread+0x85/0xb60 [ 57.222009][ T1611] ? __kthread_parkme+0x37/0x1c0 [ 57.226954][ T1611] kthread+0x354/0x420 [ 57.231039][ T1611] ? process_one_work+0x1690/0x1690 [ 57.236224][ T1611] ? kthread_mod_delayed_work+0x190/0x190 [ 57.242046][ T1611] ret_from_fork+0x24/0x30 [ 57.246452][ T1611] [ 57.248768][ T1611] Allocated by task 8016: [ 57.253166][ T1611] save_stack+0x21/0x50 [ 57.257319][ T1611] __kasan_kmalloc.constprop.17+0xc7/0xd0 [ 57.263028][ T1611] kasan_kmalloc+0x9/0x10 [ 57.267336][ T1611] __kmalloc_node_track_caller+0x4d/0x70 [ 57.272969][ T1611] __kmalloc_reserve.isra.46+0x2c/0xc0 [ 57.278446][ T1611] __alloc_skb+0xd7/0x570 [ 57.282755][ T1611] vhci_write+0xa8/0x3e0 [ 57.286998][ T1611] new_sync_write+0x400/0x7e0 [ 57.291679][ T1611] __vfs_write+0x94/0x110 [ 57.295993][ T1611] vfs_write+0x190/0x530 [ 57.300238][ T1611] ksys_write+0x10b/0x220 [ 57.304551][ T1611] __x64_sys_write+0x6e/0xb0 [ 57.309139][ T1611] do_syscall_64+0xca/0x630 [ 57.313645][ T1611] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 57.319522][ T1611] [ 57.321848][ T1611] Freed by task 0: [ 57.325552][ T1611] (stack is not available) [ 57.329956][ T1611] [ 57.332294][ T1611] The buggy address belongs to the object at ffff88809e7c3000 [ 57.332294][ T1611] which belongs to the cache kmalloc-512 of size 512 [ 57.346444][ T1611] The buggy address is located 8 bytes to the right of [ 57.346444][ T1611] 512-byte region [ffff88809e7c3000, ffff88809e7c3200) [ 57.360050][ T1611] The buggy address belongs to the page: [ 57.365808][ T1611] page:ffffea000279f0c0 refcount:1 mapcount:0 mapping:0000000018155c57 index:0x0 [ 57.374918][ T1611] flags: 0xfffe0000000200(slab) [ 57.379865][ T1611] raw: 00fffe0000000200 ffffea000277d308 ffffea00024b40c8 ffff8880aa400a80 [ 57.388615][ T1611] raw: 0000000000000000 ffff88809e7c3000 0000000100000004 0000000000000000 [ 57.397218][ T1611] page dumped because: kasan: bad access detected [ 57.403627][ T1611] [ 57.405940][ T1611] Memory state around the buggy address: [ 57.411553][ T1611] ffff88809e7c3100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 57.419604][ T1611] ffff88809e7c3180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 57.427662][ T1611] >ffff88809e7c3200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.435826][ T1611] ^ [ 57.440141][ T1611] ffff88809e7c3280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.448179][ T1611] ffff88809e7c3300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.456216][ T1611] ================================================================== [ 57.464252][ T1611] Disabling lock debugging due to kernel taint [ 57.478760][ T1611] Kernel panic - not syncing: panic_on_warn set ... [ 57.485383][ T1611] CPU: 1 PID: 1611 Comm: kworker/u5:0 Tainted: G B 5.7.0-rc1-syzkaller #0 [ 57.495168][ T1611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.505227][ T1611] Workqueue: hci0 hci_rx_work [ 57.509897][ T1611] Call Trace: [ 57.513182][ T1611] dump_stack+0x12d/0x187 [ 57.515966][ T7041] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.517506][ T1611] ? hci_encrypt_cfm+0x150/0x1c0 [ 57.529014][ T1611] ? bacpy+0xe/0x10 [ 57.532816][ T1611] panic+0x22a/0x4e3 [ 57.536703][ T1611] ? add_taint.cold.7+0x11/0x11 [ 57.541551][ T1611] ? preempt_schedule_thunk+0x16/0x18 [ 57.546920][ T1611] ? bacpy+0xe/0x10 [ 57.550719][ T1611] ? bacpy+0xe/0x10 [ 57.554523][ T1611] end_report+0x51/0x59 [ 57.558669][ T1611] __kasan_report.cold.11+0xe/0x4e [ 57.563784][ T1611] ? bacpy+0xe/0x10 [ 57.567592][ T1611] kasan_report+0x38/0x50 [ 57.571912][ T1611] check_memory_region+0x1cc/0x1f0 [ 57.577029][ T1611] memcpy+0x23/0x60 [ 57.578604][ T7041] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.580837][ T1611] bacpy+0xe/0x10 [ 57.594891][ T1611] hci_event_packet+0x3195/0x9652 [ 57.599921][ T1611] ? hci_cmd_complete_evt+0xb6a0/0xb6a0 [ 57.603410][ T7041] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.605473][ T1611] ? ret_from_fork+0x24/0x30 [ 57.620489][ T1611] ? stack_trace_save+0x82/0xb0 [ 57.625332][ T1611] ? stack_trace_consume_entry+0x170/0x170 [ 57.631131][ T1611] ? unwind_next_frame+0x3e/0x50 [ 57.636060][ T1611] ? save_trace+0x45/0xab0 [ 57.640471][ T1611] ? __kasan_check_write+0x14/0x20 [ 57.642023][ T7041] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.645586][ T1611] ? lockdep_unlock+0x115/0x1b0 [ 57.657169][ T1611] ? __lock_acquire+0x2c81/0x3bf0 [ 57.662183][ T1611] ? stack_trace_consume_entry+0x170/0x170 [ 57.667980][ T1611] ? save_trace+0x5ce/0xab0 [ 57.672484][ T1611] ? mark_held_locks+0x130/0x130 [ 57.677416][ T1611] ? lockdep_unlock+0x115/0x1b0 [ 57.682262][ T1611] ? find_held_lock+0x36/0x1d0 [ 57.687027][ T1611] ? __kasan_check_read+0x11/0x20 [ 57.692047][ T1611] ? mark_lock+0xbf/0x630 [ 57.696370][ T1611] ? mark_held_locks+0xb8/0x130 [ 57.701211][ T1611] ? _raw_spin_unlock_irqrestore+0x7d/0xd0 [ 57.707021][ T1611] ? skb_dequeue+0x14d/0x1f0 [ 57.711598][ T1611] ? lockdep_hardirqs_on+0x481/0x620 [ 57.716861][ T1611] ? _raw_spin_unlock_irqrestore+0x7d/0xd0 [ 57.722764][ T1611] ? trace_hardirqs_on+0x28/0x1a0 [ 57.727770][ T1611] hci_rx_work+0x18e/0x950 [ 57.732169][ T1611] ? hci_rx_work+0x18e/0x950 [ 57.736749][ T1611] ? rcu_read_lock_any_held.part.10+0x50/0x50 [ 57.742799][ T1611] ? trace_hardirqs_on+0x28/0x1a0 [ 57.747824][ T1611] process_one_work+0x893/0x1690 [ 57.752756][ T1611] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 57.758119][ T1611] worker_thread+0x85/0xb60 [ 57.762600][ T1611] ? __kthread_parkme+0x37/0x1c0 [ 57.767527][ T1611] kthread+0x354/0x420 [ 57.771575][ T1611] ? process_one_work+0x1690/0x1690 [ 57.776750][ T1611] ? kthread_mod_delayed_work+0x190/0x190 [ 57.782444][ T1611] ret_from_fork+0x24/0x30 [ 57.788190][ T1611] Kernel Offset: disabled [ 57.792507][ T1611] Rebooting in 86400 seconds..