Warning: Permanently added '10.128.1.206' (ED25519) to the list of known hosts. 2026/05/20 07:13:20 parsed 1 programs [ 91.554031][ T4618] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 93.824653][ T4653] chnl_net:caif_netlink_parms(): no params data found [ 93.890474][ T4653] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.897721][ T4653] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.906399][ T4653] device bridge_slave_0 entered promiscuous mode [ 93.917176][ T4653] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.924326][ T4653] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.932891][ T4653] device bridge_slave_1 entered promiscuous mode [ 93.960236][ T4653] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.972837][ T4653] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.004309][ T4653] team0: Port device team_slave_0 added [ 94.012666][ T4653] team0: Port device team_slave_1 added [ 94.036402][ T4653] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 94.043388][ T4653] 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. [ 94.081391][ T4653] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.095863][ T4653] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.103127][ T4653] 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. [ 94.131839][ T4653] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.170482][ T4653] device hsr_slave_0 entered promiscuous mode [ 94.178892][ T4653] device hsr_slave_1 entered promiscuous mode [ 94.852963][ T4653] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.864356][ T4653] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.874253][ T4653] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.891822][ T4653] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.953035][ T4653] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.968714][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.978947][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.990152][ T4653] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.001084][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 95.010030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 95.020680][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.027827][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.037185][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.066184][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 95.075346][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 95.086425][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.093593][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.103278][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 95.113044][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 95.145851][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.158380][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.167437][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.178293][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.187524][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.197495][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.210975][ T4653] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 95.222708][ T4653] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 95.232422][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.242013][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.251136][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.395927][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 95.403531][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 95.420063][ T4653] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.440628][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 95.452038][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 95.486947][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 95.496978][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 95.507364][ T4653] device veth0_vlan entered promiscuous mode [ 95.518244][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 95.528004][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 95.541090][ T4653] device veth1_vlan entered promiscuous mode [ 95.579038][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 95.587796][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 95.597499][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 95.606555][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 95.617153][ T4653] device veth0_macvtap entered promiscuous mode [ 95.629014][ T4653] device veth1_macvtap entered promiscuous mode [ 95.656645][ T4653] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.664081][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 95.674815][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 95.683809][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 95.693964][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 95.706601][ T4653] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.714138][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 95.724169][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 95.736424][ T4653] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.746008][ T4653] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.755091][ T4653] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.768139][ T4653] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.988646][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.010424][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.030619][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 97.045177][ T145] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 97.054089][ T145] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 97.063583][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 97.694907][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/05/20 07:13:29 executed programs: 0 [ 98.121809][ T4837] chnl_net:caif_netlink_parms(): no params data found [ 98.180307][ T4837] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.189787][ T4837] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.198323][ T4837] device bridge_slave_0 entered promiscuous mode [ 98.207865][ T4837] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.215053][ T4837] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.223107][ T4837] device bridge_slave_1 entered promiscuous mode [ 98.251945][ T4837] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.266610][ T4837] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.301459][ T4837] team0: Port device team_slave_0 added [ 98.311257][ T4837] team0: Port device team_slave_1 added [ 98.335891][ T4837] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.343096][ T4837] 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. [ 98.369982][ T4837] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.382633][ T4837] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.390215][ T4837] 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. [ 98.417595][ T4837] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.455411][ T4837] device hsr_slave_0 entered promiscuous mode [ 98.462569][ T4837] device hsr_slave_1 entered promiscuous mode [ 98.470195][ T4837] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 98.478310][ T4837] Cannot create hsr debugfs directory [ 100.005802][ T4281] Bluetooth: hci0: command 0x0409 tx timeout [ 101.420302][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.470514][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.540448][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.075797][ T4266] Bluetooth: hci0: command 0x041b tx timeout [ 102.309838][ T4837] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.319189][ T4837] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.340673][ T4837] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.350080][ T4837] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 102.398780][ T4837] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.411691][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 102.420409][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 102.440230][ T4837] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.449799][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 102.458831][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 102.467997][ T1502] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.475152][ T1502] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.484791][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 102.509349][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 102.518556][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 102.527302][ T1502] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.534344][ T1502] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.545323][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 102.563301][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 102.572721][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 102.582231][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 102.591034][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 102.601317][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 102.610465][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 102.635451][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 102.644727][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 102.656961][ T4837] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 102.668600][ T4837] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 102.677235][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 102.686533][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 102.775221][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 102.783582][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 102.794804][ T4837] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.819941][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 102.830432][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 102.850098][ T4799] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 102.858474][ T4799] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 102.867479][ T4799] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 102.875238][ T4799] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 102.891252][ T4837] device veth0_vlan entered promiscuous mode [ 102.902324][ T4837] device veth1_vlan entered promiscuous mode [ 102.924126][ T4837] device veth0_macvtap entered promiscuous mode [ 102.934931][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 102.943227][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 102.952002][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 102.961267][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 102.973298][ T144] device hsr_slave_0 left promiscuous mode [ 102.979919][ T144] device hsr_slave_1 left promiscuous mode [ 102.986567][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 102.994272][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 103.002242][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 103.009960][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 103.018076][ T144] device bridge_slave_1 left promiscuous mode [ 103.024869][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.034040][ T144] device bridge_slave_0 left promiscuous mode [ 103.040434][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.051889][ T144] device veth1_macvtap left promiscuous mode [ 103.058121][ T144] device veth0_macvtap left promiscuous mode [ 103.064342][ T144] device veth1_vlan left promiscuous mode [ 103.070678][ T144] device veth0_vlan left promiscuous mode [ 103.179243][ T144] team0 (unregistering): Port device team_slave_1 removed [ 103.193928][ T144] team0 (unregistering): Port device team_slave_0 removed [ 103.204729][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 103.218878][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 103.263060][ T144] bond0 (unregistering): Released all slaves [ 103.311385][ T4837] device veth1_macvtap entered promiscuous mode [ 103.319398][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 103.327528][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 103.344250][ T4837] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.353796][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 103.363389][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 103.375799][ T4837] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.388431][ T4837] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.399700][ T4837] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.409055][ T4837] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.418082][ T4837] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.428894][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 103.438150][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 103.477668][ T4799] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.492850][ T4799] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.507478][ T145] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 103.522661][ T1502] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.532693][ T1502] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.541194][ T1502] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2026/05/20 07:13:35 executed programs: 2 [ 104.155652][ T4266] Bluetooth: hci0: command 0x040f tx timeout [ 106.235692][ T4684] Bluetooth: hci0: command 0x0419 tx timeout 2026/05/20 07:13:40 executed programs: 8 2026/05/20 07:13:45 executed programs: 14 2026/05/20 07:13:50 executed programs: 20 [ 121.467449][ T434] ================================================================== [ 121.475573][ T434] BUG: KASAN: use-after-free in __lock_acquire+0x106/0x7d10 [ 121.482970][ T434] Read of size 8 at addr ffff888072b99720 by task kworker/u4:3/434 [ 121.490871][ T434] [ 121.493218][ T434] CPU: 0 PID: 434 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 121.500667][ T434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 121.510712][ T434] Workqueue: kkcmd kcm_tx_work [ 121.515493][ T434] Call Trace: [ 121.518794][ T434] [ 121.521716][ T434] dump_stack_lvl+0x188/0x250 [ 121.526573][ T434] ? show_regs_print_info+0x20/0x20 [ 121.531955][ T434] ? load_image+0x400/0x400 [ 121.536542][ T434] ? _raw_spin_lock_irqsave+0xbc/0x100 [ 121.542015][ T434] print_address_description+0x60/0x2d0 [ 121.547678][ T434] ? __lock_acquire+0x106/0x7d10 [ 121.553031][ T434] kasan_report+0xdf/0x130 [ 121.557639][ T434] ? __lock_acquire+0x106/0x7d10 [ 121.562988][ T434] __lock_acquire+0x106/0x7d10 [ 121.568282][ T434] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 121.574446][ T434] ? lock_chain_count+0x20/0x20 [ 121.579831][ T434] ? finish_lock_switch+0x12f/0x280 [ 121.585219][ T434] ? finish_lock_switch+0x12f/0x280 [ 121.590810][ T434] ? verify_lock_unused+0x140/0x140 [ 121.596009][ T434] ? finish_task_switch+0x12f/0x640 [ 121.601224][ T434] ? __switch_to_asm+0x34/0x60 [ 121.605987][ T434] ? __schedule+0x11f7/0x43c0 [ 121.610929][ T434] lock_acquire+0x19e/0x400 [ 121.615545][ T434] ? __lock_sock+0x166/0x2b0 [ 121.620250][ T434] ? lockdep_hardirqs_on_prepare+0x770/0x770 [ 121.627813][ T434] ? __local_bh_disable_ip+0x111/0x1a0 [ 121.633390][ T434] ? read_lock_is_recursive+0x10/0x10 [ 121.639115][ T434] ? __local_bh_enable_ip+0x136/0x1c0 [ 121.644881][ T434] ? kthread_data+0x4b/0xc0 [ 121.649484][ T434] ? kthread_data+0x4b/0xc0 [ 121.654000][ T434] ? __lock_sock+0x166/0x2b0 [ 121.658593][ T434] _raw_spin_lock_bh+0x32/0x50 [ 121.663362][ T434] ? __lock_sock+0x166/0x2b0 [ 121.668106][ T434] __lock_sock+0x166/0x2b0 [ 121.672526][ T434] ? sk_page_frag_refill+0x200/0x200 [ 121.677920][ T434] ? do_raw_spin_lock+0x128/0x2f0 [ 121.683041][ T434] ? init_wait_entry+0xd0/0xd0 [ 121.687907][ T434] ? __rwlock_init+0x140/0x140 [ 121.692662][ T434] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 121.699229][ T434] ? lock_sock_nested+0x68/0x100 [ 121.704172][ T434] lock_sock_nested+0x9d/0x100 [ 121.709043][ T434] kcm_tx_work+0x2d/0x180 [ 121.713374][ T434] process_one_work+0x85f/0x1010 [ 121.718411][ T434] ? worker_detach_from_pool+0x240/0x240 [ 121.724132][ T434] ? lockdep_hardirqs_off+0x70/0x100 [ 121.729427][ T434] ? _raw_spin_lock_irq+0xb7/0xf0 [ 121.734824][ T434] ? _raw_spin_lock_irqsave+0x100/0x100 [ 121.740602][ T434] ? wq_worker_running+0x97/0x170 [ 121.745753][ T434] worker_thread+0xaa6/0x1290 [ 121.750738][ T434] kthread+0x436/0x520 [ 121.754814][ T434] ? rcu_lock_release+0x20/0x20 [ 121.759870][ T434] ? kthread_blkcg+0xd0/0xd0 [ 121.764898][ T434] ret_from_fork+0x1f/0x30 [ 121.769500][ T434] [ 121.772509][ T434] [ 121.774906][ T434] Allocated by task 5170: [ 121.779225][ T434] __kasan_slab_alloc+0x9c/0xd0 [ 121.784541][ T434] slab_post_alloc_hook+0x4c/0x380 [ 121.789749][ T434] kmem_cache_alloc+0x100/0x290 [ 121.794818][ T434] sk_prot_alloc+0x57/0x210 [ 121.799940][ T434] sk_alloc+0x2f/0x310 [ 121.804023][ T434] kcm_ioctl+0x20f/0x1090 [ 121.808459][ T434] sock_do_ioctl+0xfb/0x320 [ 121.813022][ T434] sock_ioctl+0x4d2/0x710 [ 121.817372][ T434] __se_sys_ioctl+0xfa/0x170 [ 121.822055][ T434] do_syscall_64+0x4c/0xa0 [ 121.826566][ T434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 121.832615][ T434] [ 121.835013][ T434] Freed by task 5171: [ 121.838976][ T434] kasan_set_track+0x4b/0x70 [ 121.843651][ T434] kasan_set_free_info+0x1f/0x40 [ 121.848702][ T434] ____kasan_slab_free+0xd5/0x110 [ 121.853722][ T434] slab_free_freelist_hook+0xea/0x170 [ 121.859172][ T434] kmem_cache_free+0x8f/0x210 [ 121.863837][ T434] __sk_destruct+0x569/0x840 [ 121.868510][ T434] kcm_release+0x51a/0x5b0 [ 121.872914][ T434] sock_close+0xd5/0x240 [ 121.877139][ T434] __fput+0x234/0x930 [ 121.881106][ T434] task_work_run+0x125/0x1a0 [ 121.885693][ T434] exit_to_user_mode_loop+0x10f/0x130 [ 121.891406][ T434] exit_to_user_mode_prepare+0xee/0x180 [ 121.897048][ T434] syscall_exit_to_user_mode+0x16/0x40 [ 121.902507][ T434] do_syscall_64+0x58/0xa0 [ 121.906906][ T434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 121.912883][ T434] [ 121.915299][ T434] Last potentially related work creation: [ 121.921174][ T434] kasan_save_stack+0x35/0x60 [ 121.925840][ T434] kasan_record_aux_stack+0xb8/0x100 [ 121.931123][ T434] insert_work+0x54/0x3d0 [ 121.935483][ T434] __queue_work+0x9c5/0xd50 [ 121.939982][ T434] queue_work_on+0x124/0x1f0 [ 121.944564][ T434] kcm_unattach+0x85e/0xe80 [ 121.949049][ T434] kcm_ioctl+0x7c0/0x1090 [ 121.953434][ T434] sock_do_ioctl+0xfb/0x320 [ 121.957929][ T434] sock_ioctl+0x4d2/0x710 [ 121.962549][ T434] __se_sys_ioctl+0xfa/0x170 [ 121.967214][ T434] do_syscall_64+0x4c/0xa0 [ 121.971625][ T434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 121.977536][ T434] [ 121.980117][ T434] Second to last potentially related work creation: [ 121.986788][ T434] kasan_save_stack+0x35/0x60 [ 121.991544][ T434] kasan_record_aux_stack+0xb8/0x100 [ 121.996912][ T434] insert_work+0x54/0x3d0 [ 122.001236][ T434] __queue_work+0x9c5/0xd50 [ 122.005735][ T434] queue_work_on+0x124/0x1f0 [ 122.010490][ T434] kcm_ioctl+0xee0/0x1090 [ 122.014988][ T434] sock_do_ioctl+0xfb/0x320 [ 122.019586][ T434] sock_ioctl+0x4d2/0x710 [ 122.023908][ T434] __se_sys_ioctl+0xfa/0x170 [ 122.028486][ T434] do_syscall_64+0x4c/0xa0 [ 122.032888][ T434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 122.038780][ T434] [ 122.041179][ T434] The buggy address belongs to the object at ffff888072b99680 [ 122.041179][ T434] which belongs to the cache KCM of size 1736 [ 122.055018][ T434] The buggy address is located 160 bytes inside of [ 122.055018][ T434] 1736-byte region [ffff888072b99680, ffff888072b99d48) [ 122.068890][ T434] The buggy address belongs to the page: [ 122.074610][ T434] page:ffffea0001cae600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x72b98 [ 122.085109][ T434] head:ffffea0001cae600 order:3 compound_mapcount:0 compound_pincount:0 [ 122.093434][ T434] memcg:ffff88802192a601 [ 122.097659][ T434] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 122.105720][ T434] raw: 00fff00000010200 0000000000000000 dead000000000122 ffff88814c9f18c0 [ 122.114493][ T434] raw: 0000000000000000 0000000080110011 00000001ffffffff ffff88802192a601 [ 122.123060][ T434] page dumped because: kasan: bad access detected [ 122.129554][ T434] page_owner tracks the page as allocated [ 122.135368][ T434] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5157, ts 118867437587, free_ts 101641158072 [ 122.156585][ T434] get_page_from_freelist+0x1bbd/0x1ca0 [ 122.162442][ T434] __alloc_pages+0x1ee/0x480 [ 122.167025][ T434] new_slab+0xc0/0x4b0 [ 122.171090][ T434] ___slab_alloc+0x80a/0xdd0 [ 122.175672][ T434] kmem_cache_alloc+0x195/0x290 [ 122.180523][ T434] sk_prot_alloc+0x57/0x210 [ 122.185015][ T434] sk_alloc+0x2f/0x310 [ 122.189073][ T434] kcm_create+0xfc/0x570 [ 122.193324][ T434] __sock_create+0x47b/0x900 [ 122.198004][ T434] __sys_socket+0xe2/0x170 [ 122.202800][ T434] __x64_sys_socket+0x76/0x80 [ 122.207489][ T434] do_syscall_64+0x4c/0xa0 [ 122.211894][ T434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 122.217778][ T434] page last free stack trace: [ 122.222521][ T434] free_unref_page_prepare+0x637/0x6c0 [ 122.227970][ T434] free_unref_page+0x8f/0x2a0 [ 122.232642][ T434] __unfreeze_partials+0x1a5/0x200 [ 122.237869][ T434] put_cpu_partial+0x12d/0x190 [ 122.242752][ T434] qlist_free_all+0x35/0x90 [ 122.247341][ T434] kasan_quarantine_reduce+0x150/0x160 [ 122.252863][ T434] __kasan_slab_alloc+0x2f/0xd0 [ 122.257729][ T434] slab_post_alloc_hook+0x4c/0x380 [ 122.262856][ T434] __kmalloc_node+0x15a/0x3b0 [ 122.267614][ T434] kvmalloc_node+0x84/0x130 [ 122.272105][ T434] proc_sys_call_handler+0x366/0x6d0 [ 122.277466][ T434] vfs_write+0x745/0xd60 [ 122.281792][ T434] ksys_write+0x152/0x260 [ 122.286221][ T434] do_syscall_64+0x4c/0xa0 [ 122.290630][ T434] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 122.296513][ T434] [ 122.298820][ T434] Memory state around the buggy address: [ 122.304427][ T434] ffff888072b99600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.312484][ T434] ffff888072b99680: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.320666][ T434] >ffff888072b99700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.328719][ T434] ^ [ 122.334070][ T434] ffff888072b99780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.342221][ T434] ffff888072b99800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.350271][ T434] ================================================================== [ 122.358517][ T434] Disabling lock debugging due to kernel taint [ 122.364848][ T434] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 122.372028][ T434] CPU: 0 PID: 434 Comm: kworker/u4:3 Tainted: G B syzkaller #0 [ 122.381338][ T434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 122.391380][ T434] Workqueue: kkcmd kcm_tx_work [ 122.396231][ T434] Call Trace: [ 122.399592][ T434] [ 122.402507][ T434] dump_stack_lvl+0x188/0x250 [ 122.407333][ T434] ? show_regs_print_info+0x20/0x20 [ 122.412629][ T434] ? load_image+0x400/0x400 [ 122.417138][ T434] panic+0x2e5/0x810 [ 122.421030][ T434] ? bpf_jit_dump+0xd0/0xd0 [ 122.425605][ T434] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 122.431489][ T434] ? _raw_spin_unlock+0x40/0x40 [ 122.436537][ T434] ? __lock_acquire+0x106/0x7d10 [ 122.441578][ T434] check_panic_on_warn+0x80/0xa0 [ 122.446700][ T434] ? __lock_acquire+0x106/0x7d10 [ 122.451895][ T434] end_report+0x6d/0xf0 [ 122.456043][ T434] kasan_report+0x102/0x130 [ 122.460532][ T434] ? __lock_acquire+0x106/0x7d10 [ 122.465457][ T434] __lock_acquire+0x106/0x7d10 [ 122.470210][ T434] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 122.476185][ T434] ? lock_chain_count+0x20/0x20 [ 122.481024][ T434] ? finish_lock_switch+0x12f/0x280 [ 122.486303][ T434] ? finish_lock_switch+0x12f/0x280 [ 122.491483][ T434] ? verify_lock_unused+0x140/0x140 [ 122.496668][ T434] ? finish_task_switch+0x12f/0x640 [ 122.501860][ T434] ? __switch_to_asm+0x34/0x60 [ 122.506617][ T434] ? __schedule+0x11f7/0x43c0 [ 122.511283][ T434] lock_acquire+0x19e/0x400 [ 122.515775][ T434] ? __lock_sock+0x166/0x2b0 [ 122.520350][ T434] ? lockdep_hardirqs_on_prepare+0x770/0x770 [ 122.526318][ T434] ? __local_bh_disable_ip+0x111/0x1a0 [ 122.531766][ T434] ? read_lock_is_recursive+0x10/0x10 [ 122.537133][ T434] ? __local_bh_enable_ip+0x136/0x1c0 [ 122.542786][ T434] ? kthread_data+0x4b/0xc0 [ 122.547359][ T434] ? kthread_data+0x4b/0xc0 [ 122.551940][ T434] ? __lock_sock+0x166/0x2b0 [ 122.556515][ T434] _raw_spin_lock_bh+0x32/0x50 [ 122.561263][ T434] ? __lock_sock+0x166/0x2b0 [ 122.565843][ T434] __lock_sock+0x166/0x2b0 [ 122.570426][ T434] ? sk_page_frag_refill+0x200/0x200 [ 122.575719][ T434] ? do_raw_spin_lock+0x128/0x2f0 [ 122.580844][ T434] ? init_wait_entry+0xd0/0xd0 [ 122.585656][ T434] ? __rwlock_init+0x140/0x140 [ 122.590516][ T434] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 122.596489][ T434] ? lock_sock_nested+0x68/0x100 [ 122.601850][ T434] lock_sock_nested+0x9d/0x100 [ 122.606635][ T434] kcm_tx_work+0x2d/0x180 [ 122.610969][ T434] process_one_work+0x85f/0x1010 [ 122.615992][ T434] ? worker_detach_from_pool+0x240/0x240 [ 122.621611][ T434] ? lockdep_hardirqs_off+0x70/0x100 [ 122.626895][ T434] ? _raw_spin_lock_irq+0xb7/0xf0 [ 122.632111][ T434] ? _raw_spin_lock_irqsave+0x100/0x100 [ 122.637663][ T434] ? wq_worker_running+0x97/0x170 [ 122.642712][ T434] worker_thread+0xaa6/0x1290 [ 122.647415][ T434] kthread+0x436/0x520 [ 122.651568][ T434] ? rcu_lock_release+0x20/0x20 [ 122.656417][ T434] ? kthread_blkcg+0xd0/0xd0 [ 122.661007][ T434] ret_from_fork+0x1f/0x30 [ 122.665429][ T434] [ 122.668740][ T434] Kernel Offset: disabled [ 122.673158][ T434] Rebooting in 86400 seconds..