[ 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 '10.128.0.206' (ECDSA) to the list of known hosts. 2021/10/28 00:43:42 parsed 1 programs syzkaller login: [ 1579.185992][ T6559] cgroup: Unknown subsys name 'net' [ 1579.202673][ T6559] cgroup: Unknown subsys name 'rlimit' 2021/10/28 00:43:42 executed programs: 0 [ 1579.574147][ T25] audit: type=1400 audit(1635381822.729:8): avc: denied { execmem } for pid=6570 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 1580.928698][ T6571] chnl_net:caif_netlink_parms(): no params data found [ 1581.045444][ T6571] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.053022][ T6571] bridge0: port 1(bridge_slave_0) entered disabled state [ 1581.063239][ T6571] device bridge_slave_0 entered promiscuous mode [ 1581.072709][ T6571] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.081374][ T6571] bridge0: port 2(bridge_slave_1) entered disabled state [ 1581.089244][ T6571] device bridge_slave_1 entered promiscuous mode [ 1581.126172][ T6571] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1581.137313][ T6571] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1581.172680][ T6571] team0: Port device team_slave_0 added [ 1581.180492][ T6571] team0: Port device team_slave_1 added [ 1581.210157][ T6571] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1581.218306][ T6571] 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. [ 1581.247223][ T6571] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1581.260312][ T6571] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1581.267482][ T6571] 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. [ 1581.293527][ T6571] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1581.333202][ T6571] device hsr_slave_0 entered promiscuous mode [ 1581.340598][ T6571] device hsr_slave_1 entered promiscuous mode [ 1581.475595][ T6571] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1581.490368][ T6571] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1581.500271][ T6571] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1581.516010][ T6571] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1581.543343][ T6571] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.550520][ T6571] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.558561][ T6571] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.565729][ T6571] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.617732][ T6571] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1581.630568][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1581.643203][ T1053] bridge0: port 1(bridge_slave_0) entered disabled state [ 1581.653593][ T1053] bridge0: port 2(bridge_slave_1) entered disabled state [ 1581.662236][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1581.677014][ T6571] 8021q: adding VLAN 0 to HW filter on device team0 [ 1581.689320][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1581.697774][ T2979] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.704929][ T2979] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.719129][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1581.728061][ T2979] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.735740][ T2979] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.755849][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1581.776517][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1581.785542][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1581.794855][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1581.803032][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1581.815513][ T6571] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1581.832972][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1581.841329][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1581.857486][ T6571] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1581.877866][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1581.899857][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1581.908696][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1581.917768][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1581.928013][ T6571] device veth0_vlan entered promiscuous mode [ 1581.942294][ T6571] device veth1_vlan entered promiscuous mode [ 1581.967316][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1581.977207][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1581.987560][ T6571] device veth0_macvtap entered promiscuous mode [ 1582.001265][ T6571] device veth1_macvtap entered promiscuous mode [ 1582.019290][ T6571] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1582.027786][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1582.036008][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 1582.045914][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1582.054491][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1582.067788][ T6571] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1582.080997][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1582.090717][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1582.105135][ T6571] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.114660][ T6571] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.123382][ T6571] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.132928][ T6571] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1582.236232][ T6642] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1582.254284][ T6642] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1582.274298][ T2979] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1582.294682][ T6642] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1582.304750][ T6642] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1582.317349][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1582.725502][ T6906] Bluetooth: hci0: command 0x0409 tx timeout 2021/10/28 00:43:47 executed programs: 57 [ 1584.794267][ T1053] Bluetooth: hci0: command 0x041b tx timeout [ 1586.883641][ T6906] Bluetooth: hci0: command 0x040f tx timeout [ 1588.953348][ T1053] Bluetooth: hci0: command 0x0419 tx timeout 2021/10/28 00:43:52 executed programs: 196 2021/10/28 00:43:57 executed programs: 338 2021/10/28 00:44:02 executed programs: 483 2021/10/28 00:44:07 executed programs: 625 [ 1606.873712][ T1359] ieee802154 phy0 wpan0: encryption failed: -22 [ 1606.880316][ T1359] ieee802154 phy1 wpan1: encryption failed: -22 2021/10/28 00:44:12 executed programs: 759 [ 1612.350853][ T9474] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1612.458590][ T9474] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1612.471246][ T6571] syz-executor.0 (6571) used greatest stack depth: 22432 bytes left [ 1612.509920][ T9474] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1612.547695][ T9474] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1613.648768][ T9474] device hsr_slave_0 left promiscuous mode [ 1613.655523][ T9474] device hsr_slave_1 left promiscuous mode [ 1613.664067][ T9474] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 1613.671954][ T9474] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 1613.680834][ T9474] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 1613.689314][ T9474] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 1613.698262][ T9474] device bridge_slave_1 left promiscuous mode [ 1613.705657][ T9474] bridge0: port 2(bridge_slave_1) entered disabled state [ 1613.718687][ T9474] device bridge_slave_0 left promiscuous mode [ 1613.725769][ T9474] bridge0: port 1(bridge_slave_0) entered disabled state [ 1613.741105][ T9474] device veth1_macvtap left promiscuous mode [ 1613.748507][ T9474] device veth0_macvtap left promiscuous mode [ 1613.755386][ T9474] device veth1_vlan left promiscuous mode [ 1613.761289][ T9474] device veth0_vlan left promiscuous mode [ 1613.898880][ T9474] team0 (unregistering): Port device team_slave_1 removed [ 1613.910659][ T9474] team0 (unregistering): Port device team_slave_0 removed [ 1613.923898][ T9474] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 1613.937358][ T9474] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 1613.989047][ T9474] bond0 (unregistering): Released all slaves [ 1614.923184][ T9939] chnl_net:caif_netlink_parms(): no params data found [ 1615.023249][ T9939] bridge0: port 1(bridge_slave_0) entered blocking state [ 1615.036835][ T9939] bridge0: port 1(bridge_slave_0) entered disabled state [ 1615.045162][ T9939] device bridge_slave_0 entered promiscuous mode [ 1615.058560][ T9939] bridge0: port 2(bridge_slave_1) entered blocking state [ 1615.066820][ T9939] bridge0: port 2(bridge_slave_1) entered disabled state [ 1615.077331][ T9939] device bridge_slave_1 entered promiscuous mode [ 1615.132564][ T9939] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1615.148495][ T9939] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1615.208041][ T9939] team0: Port device team_slave_0 added [ 1615.218167][ T9939] team0: Port device team_slave_1 added [ 1615.268676][ T9939] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1615.276294][ T9939] 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. [ 1615.305172][ T9939] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1615.319792][ T9939] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1615.329737][ T9939] 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. [ 1615.360323][ T9939] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1615.419630][ T9939] device hsr_slave_0 entered promiscuous mode [ 1615.427200][ T9939] device hsr_slave_1 entered promiscuous mode [ 1615.656944][ T9939] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1615.675952][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 1615.683807][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1615.695837][ T9939] 8021q: adding VLAN 0 to HW filter on device team0 [ 1615.705746][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 1615.715902][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1615.725775][ T6906] bridge0: port 1(bridge_slave_0) entered blocking state [ 1615.732849][ T6906] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1615.745083][ T6737] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 1615.753151][ T6737] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 1615.763074][ T6737] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1615.771870][ T6737] bridge0: port 2(bridge_slave_1) entered blocking state [ 1615.778912][ T6737] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1615.803750][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 1615.812510][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 1615.821039][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 1615.830802][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1615.840076][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 1615.848852][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1615.857323][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 1615.865809][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1615.876825][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1615.884922][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 1615.893401][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1615.905628][ T9939] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1615.926613][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1615.934077][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1615.948618][ T9939] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1616.053646][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1616.073028][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1616.082430][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1616.090723][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1616.102390][ T9939] device veth0_vlan entered promiscuous mode [ 1616.116585][ T9939] device veth1_vlan entered promiscuous mode [ 1616.139686][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1616.147934][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1616.157812][ T6640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1616.169559][ T9939] device veth0_macvtap entered promiscuous mode [ 1616.180266][ T9939] device veth1_macvtap entered promiscuous mode [ 1616.198099][ T9939] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1616.205484][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1616.214957][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1616.224163][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1616.236683][ T9939] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1616.245108][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1616.253887][ T6906] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1616.329963][ T9474] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1616.352807][ T9474] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1616.369274][ T1053] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1616.408457][ T9474] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1616.418960][ T9474] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1616.429209][ T6908] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/10/28 00:44:19 executed programs: 832 [ 1616.721882][ T1053] Bluetooth: hci0: command 0x0409 tx timeout [ 1618.791208][ T6908] Bluetooth: hci0: command 0x041b tx timeout [ 1620.870913][ T6908] Bluetooth: hci0: command 0x040f tx timeout 2021/10/28 00:44:24 executed programs: 964 [ 1622.952354][ T6908] Bluetooth: hci0: command 0x0419 tx timeout 2021/10/28 00:44:29 executed programs: 1101 2021/10/28 00:44:34 executed programs: 1233 2021/10/28 00:44:39 executed programs: 1365 2021/10/28 00:44:44 executed programs: 1500 2021/10/28 00:44:49 executed programs: 1640 2021/10/28 00:44:54 executed programs: 1778 2021/10/28 00:44:59 executed programs: 1918 2021/10/28 00:45:04 executed programs: 2057 2021/10/28 00:45:09 executed programs: 2194 [ 1668.308818][ T1359] ieee802154 phy0 wpan0: encryption failed: -22 [ 1668.315147][ T1359] ieee802154 phy1 wpan1: encryption failed: -22 2021/10/28 00:45:14 executed programs: 2332 [ 1676.104191][ T9939] ================================================================== [ 1676.112284][ T9939] BUG: KASAN: use-after-free in __lock_acquire+0x3d86/0x54a0 [ 1676.119757][ T9939] Read of size 8 at addr ffff888020814120 by task syz-executor.0/9939 [ 1676.127913][ T9939] [ 1676.130221][ T9939] CPU: 0 PID: 9939 Comm: syz-executor.0 Not tainted 5.15.0-rc7-syzkaller #0 [ 1676.139036][ T9939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1676.149070][ T9939] Call Trace: [ 1676.152333][ T9939] dump_stack_lvl+0xcd/0x134 [ 1676.156964][ T9939] print_address_description.constprop.0.cold+0x6c/0x2d6 [ 1676.163979][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.168986][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.174424][ T9939] kasan_report.cold+0x83/0xdf [ 1676.179173][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.184179][ T9939] __lock_acquire+0x3d86/0x54a0 [ 1676.189037][ T9939] ? mark_lock+0xef/0x17b0 [ 1676.193431][ T9939] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 1676.199291][ T9939] ? debug_object_assert_init+0x246/0x2e0 [ 1676.205023][ T9939] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1676.210983][ T9939] lock_acquire+0x1ab/0x510 [ 1676.215469][ T9939] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 1676.220966][ T9939] ? lock_release+0x720/0x720 [ 1676.225622][ T9939] ? mark_held_locks+0x9f/0xe0 [ 1676.230363][ T9939] ? cancel_delayed_work+0x2bd/0x340 [ 1676.235675][ T9939] lock_sock_nested+0x2f/0xf0 [ 1676.240357][ T9939] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 1676.245808][ T9939] l2cap_sock_teardown_cb+0xa1/0x660 [ 1676.251092][ T9939] ? lockdep_hardirqs_on+0x79/0x100 [ 1676.256308][ T9939] l2cap_chan_del+0xbc/0xa80 [ 1676.260891][ T9939] l2cap_conn_del+0x3c0/0x7b0 [ 1676.265549][ T9939] ? l2cap_conn_del+0x7b0/0x7b0 [ 1676.270384][ T9939] l2cap_disconn_cfm+0x95/0xd0 [ 1676.275131][ T9939] hci_conn_hash_flush+0x127/0x260 [ 1676.280269][ T9939] hci_dev_do_close+0x57d/0x1130 [ 1676.285242][ T9939] ? hci_dev_open+0x300/0x300 [ 1676.289900][ T9939] ? up_write+0x148/0x470 [ 1676.294213][ T9939] hci_unregister_dev+0x1c0/0x5a0 [ 1676.299224][ T9939] vhci_release+0x70/0xe0 [ 1676.303609][ T9939] __fput+0x288/0x9f0 [ 1676.307601][ T9939] ? vhci_close_dev+0x50/0x50 [ 1676.312256][ T9939] task_work_run+0xdd/0x1a0 [ 1676.316741][ T9939] do_exit+0xbae/0x2a30 [ 1676.320923][ T9939] ? __context_tracking_exit+0xb8/0xe0 [ 1676.326451][ T9939] ? lock_downgrade+0x6e0/0x6e0 [ 1676.331284][ T9939] ? lock_downgrade+0x6e0/0x6e0 [ 1676.336128][ T9939] ? mm_update_next_owner+0x7a0/0x7a0 [ 1676.341479][ T9939] do_group_exit+0x125/0x310 [ 1676.346049][ T9939] __x64_sys_exit_group+0x3a/0x50 [ 1676.351052][ T9939] do_syscall_64+0x35/0xb0 [ 1676.355447][ T9939] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1676.361324][ T9939] RIP: 0033:0x7f0ec2891a39 [ 1676.365716][ T9939] Code: Unable to access opcode bytes at RIP 0x7f0ec2891a0f. [ 1676.373055][ T9939] RSP: 002b:00007fff73ff3ba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1676.381446][ T9939] RAX: ffffffffffffffda RBX: 0000000000001350 RCX: 00007f0ec2891a39 [ 1676.389397][ T9939] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1676.397343][ T9939] RBP: 0000000000000000 R08: 0000000000000014 R09: 0000000000001350 [ 1676.405300][ T9939] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0ec28ebfda [ 1676.413249][ T9939] R13: 0000000000000000 R14: 0000000000000004 R15: 00007fff73ff3d90 [ 1676.421203][ T9939] [ 1676.423513][ T9939] Allocated by task 16146: [ 1676.427899][ T9939] kasan_save_stack+0x1b/0x40 [ 1676.432615][ T9939] __kasan_kmalloc+0xa1/0xd0 [ 1676.437345][ T9939] __kmalloc+0x214/0x4d0 [ 1676.441565][ T9939] sk_prot_alloc+0x110/0x290 [ 1676.446143][ T9939] sk_alloc+0x30/0xa60 [ 1676.450198][ T9939] l2cap_sock_alloc.constprop.0+0x31/0x230 [ 1676.456005][ T9939] l2cap_sock_create+0x123/0x1f0 [ 1676.460919][ T9939] bt_sock_create+0x17c/0x340 [ 1676.465575][ T9939] __sock_create+0x353/0x790 [ 1676.470210][ T9939] __sys_socket+0xef/0x200 [ 1676.474711][ T9939] __x64_sys_socket+0x6f/0xb0 [ 1676.479368][ T9939] do_syscall_64+0x35/0xb0 [ 1676.483766][ T9939] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1676.489642][ T9939] [ 1676.491940][ T9939] Freed by task 16145: [ 1676.496037][ T9939] kasan_save_stack+0x1b/0x40 [ 1676.500711][ T9939] kasan_set_track+0x1c/0x30 [ 1676.505652][ T9939] kasan_set_free_info+0x20/0x30 [ 1676.510708][ T9939] __kasan_slab_free+0xd1/0x110 [ 1676.515549][ T9939] kfree+0x10a/0x2c0 [ 1676.519429][ T9939] __sk_destruct+0x6a8/0x900 [ 1676.524017][ T9939] sk_destruct+0xbd/0xe0 [ 1676.528248][ T9939] __sk_free+0xef/0x3d0 [ 1676.532383][ T9939] sk_free+0x78/0xa0 [ 1676.536261][ T9939] l2cap_sock_kill+0x203/0x240 [ 1676.541018][ T9939] l2cap_sock_release+0x184/0x200 [ 1676.546019][ T9939] __sock_release+0xcd/0x280 [ 1676.550587][ T9939] sock_close+0x18/0x20 [ 1676.554727][ T9939] __fput+0x288/0x9f0 [ 1676.558690][ T9939] task_work_run+0xdd/0x1a0 [ 1676.563172][ T9939] exit_to_user_mode_prepare+0x27e/0x290 [ 1676.568865][ T9939] syscall_exit_to_user_mode+0x19/0x60 [ 1676.574308][ T9939] do_syscall_64+0x42/0xb0 [ 1676.578704][ T9939] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1676.584592][ T9939] [ 1676.586894][ T9939] The buggy address belongs to the object at ffff888020814000 [ 1676.586894][ T9939] which belongs to the cache kmalloc-2k of size 2048 [ 1676.600918][ T9939] The buggy address is located 288 bytes inside of [ 1676.600918][ T9939] 2048-byte region [ffff888020814000, ffff888020814800) [ 1676.614253][ T9939] The buggy address belongs to the page: [ 1676.619857][ T9939] page:ffffea0000820500 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x20814 [ 1676.629981][ T9939] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 1676.637510][ T9939] raw: 00fff00000000200 ffffea0001b75248 ffffea0001ba2788 ffff888010c40800 [ 1676.646072][ T9939] raw: 0000000000000000 ffff888020814000 0000000100000001 0000000000000000 [ 1676.654626][ T9939] page dumped because: kasan: bad access detected [ 1676.661026][ T9939] page_owner tracks the page as allocated [ 1676.666715][ T9939] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x242220(__GFP_HIGH|__GFP_ATOMIC|__GFP_NOWARN|__GFP_COMP|__GFP_THISNODE), pid 16146, ts 1676039477399, free_ts 1676023684758 [ 1676.685444][ T9939] get_page_from_freelist+0xa72/0x2f80 [ 1676.690919][ T9939] __alloc_pages+0x1b2/0x500 [ 1676.695490][ T9939] cache_grow_begin+0x75/0x460 [ 1676.700232][ T9939] cache_alloc_refill+0x27f/0x380 [ 1676.705234][ T9939] __kmalloc+0x3d5/0x4d0 [ 1676.709465][ T9939] sk_prot_alloc+0x110/0x290 [ 1676.714044][ T9939] sk_alloc+0x30/0xa60 [ 1676.718101][ T9939] l2cap_sock_alloc.constprop.0+0x31/0x230 [ 1676.723891][ T9939] l2cap_sock_create+0x123/0x1f0 [ 1676.728807][ T9939] bt_sock_create+0x17c/0x340 [ 1676.733463][ T9939] __sock_create+0x353/0x790 [ 1676.738030][ T9939] __sys_socket+0xef/0x200 [ 1676.742425][ T9939] __x64_sys_socket+0x6f/0xb0 [ 1676.747117][ T9939] do_syscall_64+0x35/0xb0 [ 1676.751513][ T9939] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1676.757400][ T9939] page last free stack trace: [ 1676.762048][ T9939] free_pcp_prepare+0x2c5/0x780 [ 1676.766886][ T9939] free_unref_page_list+0x1a9/0xfa0 [ 1676.772235][ T9939] release_pages+0x830/0x20b0 [ 1676.776947][ T9939] tlb_finish_mmu+0x165/0x8c0 [ 1676.781642][ T9939] exit_mmap+0x1ea/0x630 [ 1676.785860][ T9939] __mmput+0x122/0x4b0 [ 1676.790024][ T9939] mmput+0x58/0x60 [ 1676.793725][ T9939] do_exit+0xabc/0x2a30 [ 1676.797861][ T9939] do_group_exit+0x125/0x310 [ 1676.802426][ T9939] get_signal+0x47f/0x21d0 [ 1676.806860][ T9939] arch_do_signal_or_restart+0x2a9/0x1c40 [ 1676.812580][ T9939] exit_to_user_mode_prepare+0x17d/0x290 [ 1676.818193][ T9939] syscall_exit_to_user_mode+0x19/0x60 [ 1676.823641][ T9939] do_syscall_64+0x42/0xb0 [ 1676.828084][ T9939] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1676.834151][ T9939] [ 1676.836461][ T9939] Memory state around the buggy address: [ 1676.842124][ T9939] ffff888020814000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1676.850211][ T9939] ffff888020814080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1676.858257][ T9939] >ffff888020814100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1676.866291][ T9939] ^ [ 1676.871374][ T9939] ffff888020814180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1676.879414][ T9939] ffff888020814200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1676.887458][ T9939] ================================================================== [ 1676.895538][ T9939] Disabling lock debugging due to kernel taint [ 1676.901668][ T9939] Kernel panic - not syncing: panic_on_warn set ... [ 1676.908232][ T9939] CPU: 0 PID: 9939 Comm: syz-executor.0 Tainted: G B 5.15.0-rc7-syzkaller #0 [ 1676.918273][ T9939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1676.928311][ T9939] Call Trace: [ 1676.931571][ T9939] dump_stack_lvl+0xcd/0x134 [ 1676.936149][ T9939] panic+0x2b0/0x6dd [ 1676.940054][ T9939] ? __warn_printk+0xf3/0xf3 [ 1676.944629][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.949740][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.954867][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.959881][ T9939] end_report.cold+0x63/0x6f [ 1676.964466][ T9939] kasan_report.cold+0x71/0xdf [ 1676.969212][ T9939] ? __lock_acquire+0x3d86/0x54a0 [ 1676.974220][ T9939] __lock_acquire+0x3d86/0x54a0 [ 1676.979054][ T9939] ? mark_lock+0xef/0x17b0 [ 1676.983451][ T9939] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 1676.989261][ T9939] ? debug_object_assert_init+0x246/0x2e0 [ 1676.994963][ T9939] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1677.000924][ T9939] lock_acquire+0x1ab/0x510 [ 1677.005406][ T9939] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 1677.011284][ T9939] ? lock_release+0x720/0x720 [ 1677.015938][ T9939] ? mark_held_locks+0x9f/0xe0 [ 1677.020683][ T9939] ? cancel_delayed_work+0x2bd/0x340 [ 1677.025944][ T9939] lock_sock_nested+0x2f/0xf0 [ 1677.030601][ T9939] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 1677.036056][ T9939] l2cap_sock_teardown_cb+0xa1/0x660 [ 1677.041338][ T9939] ? lockdep_hardirqs_on+0x79/0x100 [ 1677.046519][ T9939] l2cap_chan_del+0xbc/0xa80 [ 1677.051136][ T9939] l2cap_conn_del+0x3c0/0x7b0 [ 1677.055801][ T9939] ? l2cap_conn_del+0x7b0/0x7b0 [ 1677.060644][ T9939] l2cap_disconn_cfm+0x95/0xd0 [ 1677.065390][ T9939] hci_conn_hash_flush+0x127/0x260 [ 1677.070490][ T9939] hci_dev_do_close+0x57d/0x1130 [ 1677.075409][ T9939] ? hci_dev_open+0x300/0x300 [ 1677.080077][ T9939] ? up_write+0x148/0x470 [ 1677.084396][ T9939] hci_unregister_dev+0x1c0/0x5a0 [ 1677.089405][ T9939] vhci_release+0x70/0xe0 [ 1677.093714][ T9939] __fput+0x288/0x9f0 [ 1677.097686][ T9939] ? vhci_close_dev+0x50/0x50 [ 1677.102342][ T9939] task_work_run+0xdd/0x1a0 [ 1677.106836][ T9939] do_exit+0xbae/0x2a30 [ 1677.110974][ T9939] ? __context_tracking_exit+0xb8/0xe0 [ 1677.116415][ T9939] ? lock_downgrade+0x6e0/0x6e0 [ 1677.121246][ T9939] ? lock_downgrade+0x6e0/0x6e0 [ 1677.126076][ T9939] ? mm_update_next_owner+0x7a0/0x7a0 [ 1677.131450][ T9939] do_group_exit+0x125/0x310 [ 1677.136018][ T9939] __x64_sys_exit_group+0x3a/0x50 [ 1677.141024][ T9939] do_syscall_64+0x35/0xb0 [ 1677.145418][ T9939] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1677.151296][ T9939] RIP: 0033:0x7f0ec2891a39 [ 1677.155690][ T9939] Code: Unable to access opcode bytes at RIP 0x7f0ec2891a0f. [ 1677.163028][ T9939] RSP: 002b:00007fff73ff3ba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1677.171416][ T9939] RAX: ffffffffffffffda RBX: 0000000000001350 RCX: 00007f0ec2891a39 [ 1677.179365][ T9939] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1677.187314][ T9939] RBP: 0000000000000000 R08: 0000000000000014 R09: 0000000000001350 [ 1677.195285][ T9939] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0ec28ebfda [ 1677.203235][ T9939] R13: 0000000000000000 R14: 0000000000000004 R15: 00007fff73ff3d90 [ 1677.211254][ T9939] Kernel Offset: disabled [ 1677.215562][ T9939] Rebooting in 86400 seconds..