Warning: Permanently added '10.128.1.157' (ED25519) to the list of known hosts. 2025/10/19 16:49:38 parsed 1 programs [ 91.516916][ T4601] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 93.233455][ T4631] chnl_net:caif_netlink_parms(): no params data found [ 93.271698][ T4631] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.278892][ T4631] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.286752][ T4631] device bridge_slave_0 entered promiscuous mode [ 93.295089][ T4631] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.302481][ T4631] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.310195][ T4631] device bridge_slave_1 entered promiscuous mode [ 93.333557][ T4631] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 93.345146][ T4631] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 93.374004][ T4631] team0: Port device team_slave_0 added [ 93.383337][ T4631] team0: Port device team_slave_1 added [ 93.405413][ T4631] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 93.412500][ T4631] 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. [ 93.439326][ T4631] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 93.452057][ T4631] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 93.459009][ T4631] 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. [ 93.486724][ T4631] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 93.525456][ T4631] device hsr_slave_0 entered promiscuous mode [ 93.534047][ T4631] device hsr_slave_1 entered promiscuous mode [ 94.134911][ T4631] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.161314][ T4631] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.170698][ T4631] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.201341][ T4631] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.362374][ T4631] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.389814][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.412450][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.428186][ T4631] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.444611][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 94.453622][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.464209][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.471338][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.480791][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.491354][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 94.510247][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.531060][ T4310] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.538258][ T4310] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.570131][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 94.579038][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 94.602922][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 94.622428][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 94.632885][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 94.653143][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 94.663085][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 94.681444][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 94.694715][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 94.723276][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 94.732584][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 94.752051][ T4631] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 94.936818][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 94.954569][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 94.973610][ T4631] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 95.008658][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 95.018692][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 95.040760][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 95.051448][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 95.061214][ T4631] device veth0_vlan entered promiscuous mode [ 95.068198][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 95.076531][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 95.089096][ T4631] device veth1_vlan entered promiscuous mode [ 95.114761][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 95.123740][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 95.132385][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 95.141919][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 95.154061][ T4631] device veth0_macvtap entered promiscuous mode [ 95.177256][ T4631] device veth1_macvtap entered promiscuous mode [ 95.194902][ T4631] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 95.204900][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 95.214275][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 95.224862][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 95.234386][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 95.249386][ T4631] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 95.258358][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 95.268843][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 95.294791][ T4631] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.304845][ T4631] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.315037][ T4631] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 95.324055][ T4631] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.411422][ T1223] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.419554][ T1223] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.452321][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 96.463388][ T1223] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 96.482272][ T1223] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 96.501809][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/10/19 16:49:47 executed programs: 0 [ 97.833382][ T144] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 97.984451][ T4823] chnl_net:caif_netlink_parms(): no params data found [ 98.041371][ T4823] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.048535][ T4823] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.057657][ T4823] device bridge_slave_0 entered promiscuous mode [ 98.066457][ T4823] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.073729][ T4823] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.082051][ T4823] device bridge_slave_1 entered promiscuous mode [ 98.106961][ T4823] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.118367][ T4823] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.147011][ T4823] team0: Port device team_slave_0 added [ 98.155744][ T4823] team0: Port device team_slave_1 added [ 98.177765][ T4823] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.184886][ T4823] 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. [ 98.211189][ T4823] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.223514][ T4823] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.230982][ T4823] 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. [ 98.256928][ T4823] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 98.293973][ T4823] device hsr_slave_0 entered promiscuous mode [ 98.301247][ T4823] device hsr_slave_1 entered promiscuous mode [ 98.307984][ T4823] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 98.316287][ T4823] Cannot create hsr debugfs directory [ 99.913441][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 100.356539][ T144] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.396481][ T144] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 100.458306][ T144] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 101.276904][ T4823] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.314273][ T4823] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.326660][ T4823] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.335623][ T4823] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.395592][ T4823] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.414199][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 101.424102][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 101.434281][ T4823] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.456085][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 101.465286][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 101.473868][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.481061][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.488921][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 101.503168][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 101.512560][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 101.521228][ T4310] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.528405][ T4310] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.555025][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 101.567058][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 101.578156][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 101.588484][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 101.597771][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 101.609875][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 101.618713][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 101.629021][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 101.638259][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 101.669152][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 101.678420][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 101.688498][ T4823] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 101.780826][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 101.788378][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 101.802880][ T4823] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 101.818506][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 101.827663][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 101.853452][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 101.862183][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 101.871203][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 101.879022][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 101.889447][ T4823] device veth0_vlan entered promiscuous mode [ 101.913170][ T4823] device veth1_vlan entered promiscuous mode [ 101.936562][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 101.945040][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 101.953630][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 101.962461][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 101.972745][ T4823] device veth0_macvtap entered promiscuous mode [ 101.980338][ T23] Bluetooth: hci0: command 0x041b tx timeout [ 101.982227][ T4823] device veth1_macvtap entered promiscuous mode [ 102.005688][ T4823] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 102.016516][ T4823] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 102.028906][ T4823] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.039016][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 102.047847][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 102.056410][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 102.065257][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 102.076309][ T144] device hsr_slave_0 left promiscuous mode [ 102.082897][ T144] device hsr_slave_1 left promiscuous mode [ 102.089111][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 102.096889][ T144] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 102.104946][ T144] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 102.112971][ T144] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 102.120896][ T144] device bridge_slave_1 left promiscuous mode [ 102.127040][ T144] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.135322][ T144] device bridge_slave_0 left promiscuous mode [ 102.142730][ T144] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.153242][ T144] device veth1_macvtap left promiscuous mode [ 102.159255][ T144] device veth0_macvtap left promiscuous mode [ 102.165431][ T144] device veth1_vlan left promiscuous mode [ 102.171317][ T144] device veth0_vlan left promiscuous mode [ 102.300897][ T144] team0 (unregistering): Port device team_slave_1 removed [ 102.315323][ T144] team0 (unregistering): Port device team_slave_0 removed [ 102.326047][ T144] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 102.338836][ T144] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 102.393219][ T144] bond0 (unregistering): Released all slaves [ 102.435999][ T4823] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.446810][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 102.455819][ T1223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 102.468741][ T4823] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.477920][ T4823] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.487040][ T4823] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.496402][ T4823] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.561195][ T1223] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.577524][ T1223] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.592993][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 102.610415][ T154] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 102.618537][ T154] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 102.628207][ T4310] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2025/10/19 16:49:53 executed programs: 3 [ 104.060526][ T5041] Bluetooth: hci0: command 0x040f tx timeout [ 104.435440][ T154] ================================================================== [ 104.443612][ T154] BUG: KASAN: use-after-free in __lock_acquire+0xf7/0x7c60 [ 104.450842][ T154] Read of size 8 at addr ffff88807e3d1720 by task kworker/u4:2/154 [ 104.458717][ T154] [ 104.461126][ T154] CPU: 1 PID: 154 Comm: kworker/u4:2 Not tainted syzkaller #0 [ 104.468616][ T154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 104.478667][ T154] Workqueue: kkcmd kcm_tx_work [ 104.483587][ T154] Call Trace: [ 104.486957][ T154] [ 104.489871][ T154] dump_stack_lvl+0x168/0x230 [ 104.494540][ T154] ? show_regs_print_info+0x20/0x20 [ 104.499723][ T154] ? load_image+0x3b0/0x3b0 [ 104.504217][ T154] ? _raw_spin_lock_irqsave+0xb0/0xf0 [ 104.509689][ T154] print_address_description+0x60/0x2d0 [ 104.515240][ T154] ? __lock_acquire+0xf7/0x7c60 [ 104.520102][ T154] kasan_report+0xdf/0x130 [ 104.524562][ T154] ? __lock_acquire+0xf7/0x7c60 [ 104.529397][ T154] __lock_acquire+0xf7/0x7c60 [ 104.534058][ T154] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 104.540024][ T154] ? lock_chain_count+0x20/0x20 [ 104.544861][ T154] ? finish_lock_switch+0x12f/0x280 [ 104.550039][ T154] ? lockdep_hardirqs_on+0x94/0x140 [ 104.555252][ T154] ? finish_lock_switch+0x12f/0x280 [ 104.560870][ T154] ? verify_lock_unused+0x140/0x140 [ 104.566049][ T154] ? finish_task_switch+0x12f/0x640 [ 104.571232][ T154] ? __switch_to_asm+0x34/0x60 [ 104.575979][ T154] ? __schedule+0x11c3/0x4390 [ 104.580695][ T154] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 104.586660][ T154] lock_acquire+0x197/0x3f0 [ 104.591338][ T154] ? __lock_sock+0x152/0x2a0 [ 104.595925][ T154] ? lockdep_hardirqs_on_prepare+0x760/0x760 [ 104.601895][ T154] ? __local_bh_disable_ip+0xfb/0x190 [ 104.607439][ T154] ? read_lock_is_recursive+0x10/0x10 [ 104.612794][ T154] ? __local_bh_enable_ip+0x12a/0x1b0 [ 104.618159][ T154] ? kthread_data+0x4b/0xc0 [ 104.622740][ T154] ? kthread_data+0x4b/0xc0 [ 104.627371][ T154] ? __lock_sock+0x152/0x2a0 [ 104.631942][ T154] _raw_spin_lock_bh+0x32/0x50 [ 104.636702][ T154] ? __lock_sock+0x152/0x2a0 [ 104.641272][ T154] __lock_sock+0x152/0x2a0 [ 104.645686][ T154] ? sk_page_frag_refill+0x200/0x200 [ 104.650957][ T154] ? do_raw_spin_lock+0x11d/0x280 [ 104.655975][ T154] ? init_wait_entry+0xd0/0xd0 [ 104.660719][ T154] ? __rwlock_init+0x140/0x140 [ 104.665463][ T154] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 104.671611][ T154] ? lock_sock_nested+0x68/0x100 [ 104.676647][ T154] lock_sock_nested+0x9d/0x100 [ 104.681455][ T154] kcm_tx_work+0x2d/0x180 [ 104.685768][ T154] process_one_work+0x863/0x1000 [ 104.690788][ T154] ? worker_detach_from_pool+0x240/0x240 [ 104.696413][ T154] ? lockdep_hardirqs_off+0x70/0x100 [ 104.701688][ T154] ? _raw_spin_lock_irq+0xab/0xe0 [ 104.706699][ T154] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 104.712141][ T154] ? wq_worker_running+0x97/0x170 [ 104.717160][ T154] worker_thread+0xaa8/0x12a0 [ 104.721841][ T154] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 104.727808][ T154] ? lockdep_hardirqs_on+0x94/0x140 [ 104.732993][ T154] ? lockdep_hardirqs_on+0x94/0x140 [ 104.738173][ T154] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 104.744165][ T154] kthread+0x436/0x520 [ 104.748222][ T154] ? rcu_lock_release+0x20/0x20 [ 104.753088][ T154] ? kthread_blkcg+0xd0/0xd0 [ 104.757661][ T154] ret_from_fork+0x1f/0x30 [ 104.762071][ T154] [ 104.765101][ T154] [ 104.767405][ T154] Allocated by task 5098: [ 104.771714][ T154] __kasan_slab_alloc+0x9c/0xd0 [ 104.776643][ T154] slab_post_alloc_hook+0x4c/0x380 [ 104.781775][ T154] kmem_cache_alloc+0x100/0x290 [ 104.786604][ T154] sk_prot_alloc+0x57/0x210 [ 104.791088][ T154] sk_alloc+0x2f/0x310 [ 104.795137][ T154] kcm_ioctl+0x211/0xff0 [ 104.799394][ T154] sock_do_ioctl+0xd3/0x2f0 [ 104.803887][ T154] sock_ioctl+0x4ed/0x6e0 [ 104.808284][ T154] __se_sys_ioctl+0xfa/0x170 [ 104.812943][ T154] do_syscall_64+0x4c/0xa0 [ 104.817479][ T154] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 104.823461][ T154] [ 104.825771][ T154] Freed by task 5099: [ 104.829746][ T154] kasan_set_track+0x4b/0x70 [ 104.834354][ T154] kasan_set_free_info+0x1f/0x40 [ 104.839276][ T154] ____kasan_slab_free+0xd5/0x110 [ 104.844291][ T154] slab_free_freelist_hook+0xea/0x170 [ 104.849762][ T154] kmem_cache_free+0x8f/0x210 [ 104.854696][ T154] __sk_destruct+0x569/0x840 [ 104.859270][ T154] kcm_release+0x51a/0x5b0 [ 104.863673][ T154] sock_close+0xd5/0x240 [ 104.867896][ T154] __fput+0x234/0x930 [ 104.871960][ T154] task_work_run+0x125/0x1a0 [ 104.876548][ T154] exit_to_user_mode_loop+0x10f/0x130 [ 104.882005][ T154] exit_to_user_mode_prepare+0xee/0x180 [ 104.887550][ T154] syscall_exit_to_user_mode+0x16/0x40 [ 104.892991][ T154] do_syscall_64+0x58/0xa0 [ 104.897561][ T154] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 104.903443][ T154] [ 104.905756][ T154] Last potentially related work creation: [ 104.911467][ T154] kasan_save_stack+0x35/0x60 [ 104.916142][ T154] kasan_record_aux_stack+0xb8/0x100 [ 104.921412][ T154] insert_work+0x54/0x3d0 [ 104.925725][ T154] __queue_work+0x9c5/0xd50 [ 104.930209][ T154] queue_work_on+0x11d/0x1d0 [ 104.934865][ T154] kcm_unattach+0x85e/0xe80 [ 104.939434][ T154] kcm_ioctl+0x78d/0xff0 [ 104.943747][ T154] sock_do_ioctl+0xd3/0x2f0 [ 104.948232][ T154] sock_ioctl+0x4ed/0x6e0 [ 104.952574][ T154] __se_sys_ioctl+0xfa/0x170 [ 104.957148][ T154] do_syscall_64+0x4c/0xa0 [ 104.961545][ T154] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 104.967423][ T154] [ 104.969732][ T154] Second to last potentially related work creation: [ 104.976378][ T154] kasan_save_stack+0x35/0x60 [ 104.981042][ T154] kasan_record_aux_stack+0xb8/0x100 [ 104.986503][ T154] insert_work+0x54/0x3d0 [ 104.990859][ T154] __queue_work+0x9c5/0xd50 [ 104.995427][ T154] queue_work_on+0x11d/0x1d0 [ 104.999997][ T154] kcm_ioctl+0xe4b/0xff0 [ 105.004220][ T154] sock_do_ioctl+0xd3/0x2f0 [ 105.008703][ T154] sock_ioctl+0x4ed/0x6e0 [ 105.013010][ T154] __se_sys_ioctl+0xfa/0x170 [ 105.017694][ T154] do_syscall_64+0x4c/0xa0 [ 105.022093][ T154] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 105.027969][ T154] [ 105.030366][ T154] The buggy address belongs to the object at ffff88807e3d1680 [ 105.030366][ T154] which belongs to the cache KCM of size 1736 [ 105.043798][ T154] The buggy address is located 160 bytes inside of [ 105.043798][ T154] 1736-byte region [ffff88807e3d1680, ffff88807e3d1d48) [ 105.057452][ T154] The buggy address belongs to the page: [ 105.063319][ T154] page:ffffea0001f8f400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e3d0 [ 105.073552][ T154] head:ffffea0001f8f400 order:3 compound_mapcount:0 compound_pincount:0 [ 105.081958][ T154] memcg:ffff888018d9a301 [ 105.086176][ T154] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 105.094141][ T154] raw: 00fff00000010200 0000000000000000 dead000000000122 ffff88802b997c80 [ 105.102789][ T154] raw: 0000000000000000 0000000080110011 00000001ffffffff ffff888018d9a301 [ 105.111617][ T154] page dumped because: kasan: bad access detected [ 105.118165][ T154] page_owner tracks the page as allocated [ 105.123866][ T154] 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 5089, ts 102685558994, free_ts 102678633487 [ 105.144692][ T154] get_page_from_freelist+0x1b77/0x1c60 [ 105.150244][ T154] __alloc_pages+0x1e1/0x470 [ 105.154934][ T154] new_slab+0xc0/0x4b0 [ 105.159200][ T154] ___slab_alloc+0x81e/0xdf0 [ 105.163887][ T154] kmem_cache_alloc+0x195/0x290 [ 105.168736][ T154] sk_prot_alloc+0x57/0x210 [ 105.173242][ T154] sk_alloc+0x2f/0x310 [ 105.177489][ T154] kcm_create+0xfc/0x570 [ 105.181739][ T154] __sock_create+0x47b/0x900 [ 105.186485][ T154] __sys_socket+0xe2/0x170 [ 105.190887][ T154] __x64_sys_socket+0x76/0x80 [ 105.195567][ T154] do_syscall_64+0x4c/0xa0 [ 105.199991][ T154] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 105.205925][ T154] page last free stack trace: [ 105.210754][ T154] free_unref_page_prepare+0x637/0x6c0 [ 105.216283][ T154] free_unref_page+0x94/0x280 [ 105.221029][ T154] qlist_free_all+0x35/0x90 [ 105.225601][ T154] kasan_quarantine_reduce+0x150/0x160 [ 105.231221][ T154] __kasan_slab_alloc+0x2f/0xd0 [ 105.236070][ T154] slab_post_alloc_hook+0x4c/0x380 [ 105.241258][ T154] kmem_cache_alloc_node_trace+0x13d/0x300 [ 105.247046][ T154] __get_vm_area_node+0x119/0x2d0 [ 105.252051][ T154] __vmalloc_node_range+0xef/0x8b0 [ 105.257146][ T154] vzalloc+0x75/0x80 [ 105.261031][ T154] alloc_counters+0xd0/0x740 [ 105.265631][ T154] do_ip6t_get_ctl+0x9fe/0x1090 [ 105.270472][ T154] nf_getsockopt+0x25e/0x280 [ 105.275340][ T154] ipv6_getsockopt+0x442/0x2000 [ 105.280180][ T154] tcp_getsockopt+0x1e3/0x2390 [ 105.285011][ T154] __sys_getsockopt+0x1b0/0x230 [ 105.289865][ T154] [ 105.292177][ T154] Memory state around the buggy address: [ 105.297872][ T154] ffff88807e3d1600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 105.305913][ T154] ffff88807e3d1680: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 105.313962][ T154] >ffff88807e3d1700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 105.321998][ T154] ^ [ 105.327090][ T154] ffff88807e3d1780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 105.335127][ T154] ffff88807e3d1800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 105.343163][ T154] ================================================================== [ 105.351207][ T154] Disabling lock debugging due to kernel taint [ 105.357393][ T154] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 105.364576][ T154] CPU: 1 PID: 154 Comm: kworker/u4:2 Tainted: G B syzkaller #0 [ 105.373488][ T154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 105.383527][ T154] Workqueue: kkcmd kcm_tx_work [ 105.388285][ T154] Call Trace: [ 105.391635][ T154] [ 105.394568][ T154] dump_stack_lvl+0x168/0x230 [ 105.399324][ T154] ? show_regs_print_info+0x20/0x20 [ 105.404595][ T154] ? load_image+0x3b0/0x3b0 [ 105.409086][ T154] panic+0x2c9/0x7f0 [ 105.412964][ T154] ? bpf_jit_dump+0xd0/0xd0 [ 105.417623][ T154] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 105.423496][ T154] ? _raw_spin_unlock+0x40/0x40 [ 105.428413][ T154] ? __lock_acquire+0xf7/0x7c60 [ 105.433249][ T154] check_panic_on_warn+0x80/0xa0 [ 105.438172][ T154] ? __lock_acquire+0xf7/0x7c60 [ 105.443091][ T154] end_report+0x6d/0xf0 [ 105.447342][ T154] kasan_report+0x102/0x130 [ 105.451838][ T154] ? __lock_acquire+0xf7/0x7c60 [ 105.456685][ T154] __lock_acquire+0xf7/0x7c60 [ 105.461431][ T154] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 105.467394][ T154] ? lock_chain_count+0x20/0x20 [ 105.472230][ T154] ? finish_lock_switch+0x12f/0x280 [ 105.477407][ T154] ? lockdep_hardirqs_on+0x94/0x140 [ 105.482600][ T154] ? finish_lock_switch+0x12f/0x280 [ 105.487871][ T154] ? verify_lock_unused+0x140/0x140 [ 105.493139][ T154] ? finish_task_switch+0x12f/0x640 [ 105.498322][ T154] ? __switch_to_asm+0x34/0x60 [ 105.503069][ T154] ? __schedule+0x11c3/0x4390 [ 105.507767][ T154] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 105.513817][ T154] lock_acquire+0x197/0x3f0 [ 105.518391][ T154] ? __lock_sock+0x152/0x2a0 [ 105.523248][ T154] ? lockdep_hardirqs_on_prepare+0x760/0x760 [ 105.529212][ T154] ? __local_bh_disable_ip+0xfb/0x190 [ 105.534661][ T154] ? read_lock_is_recursive+0x10/0x10 [ 105.540018][ T154] ? __local_bh_enable_ip+0x12a/0x1b0 [ 105.545371][ T154] ? kthread_data+0x4b/0xc0 [ 105.549859][ T154] ? kthread_data+0x4b/0xc0 [ 105.554344][ T154] ? __lock_sock+0x152/0x2a0 [ 105.558913][ T154] _raw_spin_lock_bh+0x32/0x50 [ 105.563656][ T154] ? __lock_sock+0x152/0x2a0 [ 105.568484][ T154] __lock_sock+0x152/0x2a0 [ 105.572881][ T154] ? sk_page_frag_refill+0x200/0x200 [ 105.578145][ T154] ? do_raw_spin_lock+0x11d/0x280 [ 105.583158][ T154] ? init_wait_entry+0xd0/0xd0 [ 105.587907][ T154] ? __rwlock_init+0x140/0x140 [ 105.592649][ T154] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 105.598612][ T154] ? lock_sock_nested+0x68/0x100 [ 105.603531][ T154] lock_sock_nested+0x9d/0x100 [ 105.608282][ T154] kcm_tx_work+0x2d/0x180 [ 105.612693][ T154] process_one_work+0x863/0x1000 [ 105.617626][ T154] ? worker_detach_from_pool+0x240/0x240 [ 105.623237][ T154] ? lockdep_hardirqs_off+0x70/0x100 [ 105.628515][ T154] ? _raw_spin_lock_irq+0xab/0xe0 [ 105.633607][ T154] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 105.639049][ T154] ? wq_worker_running+0x97/0x170 [ 105.644162][ T154] worker_thread+0xaa8/0x12a0 [ 105.648817][ T154] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 105.654717][ T154] ? lockdep_hardirqs_on+0x94/0x140 [ 105.659983][ T154] ? lockdep_hardirqs_on+0x94/0x140 [ 105.665168][ T154] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 105.671042][ T154] kthread+0x436/0x520 [ 105.675088][ T154] ? rcu_lock_release+0x20/0x20 [ 105.680006][ T154] ? kthread_blkcg+0xd0/0xd0 [ 105.684580][ T154] ret_from_fork+0x1f/0x30 [ 105.688982][ T154] [ 105.692503][ T154] Kernel Offset: disabled [ 105.696828][ T154] Rebooting in 86400 seconds..