Warning: Permanently added '10.128.0.75' (ED25519) to the list of known hosts. [ 42.621616][ T4023] chnl_net:caif_netlink_parms(): no params data found [ 42.659661][ T4023] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.662287][ T4023] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.665025][ T4023] device bridge_slave_0 entered promiscuous mode [ 42.669330][ T4023] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.671544][ T4023] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.674036][ T4023] device bridge_slave_1 entered promiscuous mode [ 42.688914][ T4023] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 42.693434][ T4023] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 42.708974][ T4023] team0: Port device team_slave_0 added [ 42.712610][ T4023] team0: Port device team_slave_1 added [ 42.725272][ T4023] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 42.727235][ T4023] 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. [ 42.734532][ T4023] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 42.739198][ T4023] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 42.741170][ T4023] 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. [ 42.747943][ T4023] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 42.852070][ T4023] device hsr_slave_0 entered promiscuous mode [ 42.890307][ T4023] device hsr_slave_1 entered promiscuous mode [ 43.001828][ T4023] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 43.041983][ T4023] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 43.072698][ T4023] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 43.122419][ T4023] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 43.176240][ T4023] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.178245][ T4023] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.180558][ T4023] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.182422][ T4023] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.218287][ T4023] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.228962][ T1691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.233790][ T1691] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.237206][ T1691] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.240534][ T1691] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 43.248711][ T4023] 8021q: adding VLAN 0 to HW filter on device team0 [ 43.255281][ T1691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.257894][ T1691] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.259888][ T1691] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.265124][ T1691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.267686][ T1691] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.269617][ T1691] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.283318][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 43.286371][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 43.294430][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 43.297108][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.304052][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.308632][ T4023] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 43.318994][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 43.321957][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 43.331286][ T4023] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 43.345598][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.357078][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.360563][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.363001][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.367103][ T4023] device veth0_vlan entered promiscuous mode [ 43.374428][ T4023] device veth1_vlan entered promiscuous mode [ 43.388483][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.391642][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.394447][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.398981][ T4023] device veth0_macvtap entered promiscuous mode [ 43.404200][ T4023] device veth1_macvtap entered promiscuous mode [ 43.415268][ T4023] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 43.417453][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 43.421794][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 43.428099][ T4023] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 43.431137][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 43.435649][ T4023] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.438034][ T4023] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.441458][ T4023] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 43.443712][ T4023] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 43.476313][ T4033] IPv6: ADDRCONF(NETDEV_CHANGE): bpq0: link becomes ready executing program executing program [ 43.498655][ T4035] ================================================================== [ 43.500905][ T4035] BUG: KASAN: use-after-free in ax25_fillin_cb+0x394/0x568 [ 43.502805][ T4035] Read of size 4 at addr ffff0000c1dda638 by task syz-executor242/4035 [ 43.504989][ T4035] [ 43.505582][ T4035] CPU: 1 PID: 4035 Comm: syz-executor242 Not tainted 5.15.183-syzkaller #0 [ 43.507860][ T4035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 43.510558][ T4035] Call trace: [ 43.511413][ T4035] dump_backtrace+0x0/0x43c [ 43.512600][ T4035] show_stack+0x2c/0x3c [ 43.513714][ T4035] __dump_stack+0x30/0x40 [ 43.514865][ T4035] dump_stack_lvl+0xf8/0x160 [ 43.516088][ T4035] print_address_description+0x78/0x30c [ 43.517551][ T4035] kasan_report+0xec/0x15c [ 43.518742][ T4035] __asan_report_load4_noabort+0x44/0x50 [ 43.520259][ T4035] ax25_fillin_cb+0x394/0x568 [ 43.521510][ T4035] ax25_setsockopt+0x8d0/0xa5c [ 43.522805][ T4035] __sys_setsockopt+0x2f8/0x4b0 [ 43.524084][ T4035] __arm64_sys_setsockopt+0xb8/0xd4 [ 43.525461][ T4035] invoke_syscall+0x98/0x2b8 [ 43.526670][ T4035] el0_svc_common+0x138/0x258 [ 43.527912][ T4035] do_el0_svc+0x58/0x14c [ 43.529035][ T4035] el0_svc+0x78/0x1e0 [ 43.530103][ T4035] el0t_64_sync_handler+0xcc/0xe4 [ 43.531447][ T4035] el0t_64_sync+0x1a0/0x1a4 [ 43.532677][ T4035] [ 43.533354][ T4035] Allocated by task 4033: [ 43.534591][ T4035] __kasan_kmalloc+0xb0/0xf0 [ 43.535829][ T4035] kmem_cache_alloc_trace+0x274/0x3fc [ 43.537287][ T4035] ax25_dev_device_up+0x5c/0x540 [ 43.538584][ T4035] ax25_device_event+0x504/0x590 [ 43.539866][ T4035] raw_notifier_call_chain+0xd4/0x164 [ 43.541328][ T4035] __dev_notify_flags+0x250/0x46c [ 43.542698][ T4035] dev_change_flags+0xc8/0x154 [ 43.544000][ T4035] dev_ifsioc+0x504/0xef4 [ 43.545222][ T4035] dev_ioctl+0x4d0/0xc94 [ 43.546368][ T4035] sock_do_ioctl+0x18c/0x240 [ 43.547681][ T4035] sock_ioctl+0x5c8/0x87c [ 43.548900][ T4035] __arm64_sys_ioctl+0x14c/0x1c8 [ 43.550214][ T4035] invoke_syscall+0x98/0x2b8 [ 43.551456][ T4035] el0_svc_common+0x138/0x258 [ 43.552752][ T4035] do_el0_svc+0x58/0x14c [ 43.553908][ T4035] el0_svc+0x78/0x1e0 [ 43.554993][ T4035] el0t_64_sync_handler+0xcc/0xe4 [ 43.556366][ T4035] el0t_64_sync+0x1a0/0x1a4 [ 43.557579][ T4035] [ 43.558188][ T4035] Freed by task 4034: [ 43.559286][ T4035] kasan_set_track+0x4c/0x84 [ 43.560567][ T4035] kasan_set_free_info+0x28/0x4c [ 43.561989][ T4035] ____kasan_slab_free+0x118/0x164 [ 43.563381][ T4035] __kasan_slab_free+0x18/0x28 [ 43.564690][ T4035] slab_free_freelist_hook+0x128/0x1e8 [ 43.566128][ T4035] kfree+0x170/0x40c [ 43.567160][ T4035] ax25_release+0x564/0x814 [ 43.568344][ T4035] sock_close+0xb4/0x1f8 [ 43.569536][ T4035] __fput+0x1c0/0x7f8 [ 43.570584][ T4035] ____fput+0x20/0x30 [ 43.571663][ T4035] task_work_run+0x12c/0x1e0 [ 43.572922][ T4035] do_notify_resume+0x24b4/0x3128 [ 43.574332][ T4035] el0_svc+0xf0/0x1e0 [ 43.575404][ T4035] el0t_64_sync_handler+0xcc/0xe4 [ 43.576799][ T4035] el0t_64_sync+0x1a0/0x1a4 [ 43.578019][ T4035] [ 43.578631][ T4035] The buggy address belongs to the object at ffff0000c1dda600 [ 43.578631][ T4035] which belongs to the cache kmalloc-256 of size 256 [ 43.582591][ T4035] The buggy address is located 56 bytes inside of [ 43.582591][ T4035] 256-byte region [ffff0000c1dda600, ffff0000c1dda700) [ 43.586126][ T4035] The buggy address belongs to the page: [ 43.587643][ T4035] page:000000002b5aa4ce refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101dda [ 43.590475][ T4035] head:000000002b5aa4ce order:1 compound_mapcount:0 [ 43.592281][ T4035] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 43.594451][ T4035] raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480 [ 43.596789][ T4035] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 43.599117][ T4035] page dumped because: kasan: bad access detected [ 43.600920][ T4035] [ 43.601532][ T4035] Memory state around the buggy address: [ 43.603031][ T4035] ffff0000c1dda500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.605345][ T4035] ffff0000c1dda580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.607511][ T4035] >ffff0000c1dda600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 43.609703][ T4035] ^ [ 43.611299][ T4035] ffff0000c1dda680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 43.613500][ T4035] ffff0000c1dda700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.615668][ T4035] ================================================================== [ 43.617869][ T4035] Disabling lock debugging due to kernel taint [ 43.622589][ T4035] Unable to handle kernel paging request at virtual address 000002b20000156a [ 43.624988][ T4035] Mem abort info: [ 43.626383][ T4035] ESR = 0x0000000096000021 [ 43.628194][ T4035] EC = 0x25: DABT (current EL), IL = 32 bits [ 43.629785][ T4035] SET = 0, FnV = 0 [ 43.631334][ T4035] EA = 0, S1PTW = 0 [ 43.632357][ T4035] FSC = 0x21: alignment fault [ 43.633568][ T4035] Data abort info: [ 43.634521][ T4035] ISV = 0, ISS = 0x00000021 [ 43.635758][ T4035] CM = 0, WnR = 0 [ 43.636733][ T4035] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101157000 [ 43.638663][ T4035] [000002b20000156a] pgd=0000000000000000, p4d=0000000000000000 [ 43.641052][ T4035] Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP [ 43.643007][ T4035] Modules linked in: [ 43.643965][ T4035] CPU: 1 PID: 4035 Comm: syz-executor242 Tainted: G B 5.15.183-syzkaller #0 [ 43.646581][ T4035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 43.649272][ T4035] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 43.651321][ T4035] pc : ax25_release+0x4f4/0x814 [ 43.652607][ T4035] lr : ax25_release+0x4ec/0x814 [ 43.653917][ T4035] sp : ffff80001f177a00 [ 43.655000][ T4035] x29: ffff80001f177a20 x28: dfff800000000000 x27: ffff0000c8010080 [ 43.657271][ T4035] x26: ffff0000c7f1d828 x25: 0000000000000002 x24: 00000000ffffffff [ 43.659480][ T4035] x23: 800002b20000156a x22: ffff0000c1dda600 x21: ffff0000e207aa18 [ 43.661570][ T4035] x20: ffff0000c8010000 x19: 1fffe00018fe3b05 x18: 0000000000000000 [ 43.663761][ T4035] x17: 0000000000000000 x16: ffff8000082d4b38 x15: 0000000000000002 [ 43.665872][ T4035] x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 [ 43.667976][ T4035] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff8000104473e0 [ 43.670138][ T4035] x8 : ffff0000c82751c0 x7 : 0000000000000000 x6 : ffff80000837a0a0 [ 43.672324][ T4035] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000104473d4 [ 43.674406][ T4035] x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 [ 43.676622][ T4035] Call trace: [ 43.677492][ T4035] ax25_release+0x4f4/0x814 [ 43.678695][ T4035] sock_close+0xb4/0x1f8 [ 43.679863][ T4035] __fput+0x1c0/0x7f8 [ 43.680945][ T4035] ____fput+0x20/0x30 [ 43.681991][ T4035] task_work_run+0x12c/0x1e0 [ 43.683205][ T4035] do_notify_resume+0x24b4/0x3128 [ 43.684564][ T4035] el0_svc+0xf0/0x1e0 [ 43.685622][ T4035] el0t_64_sync_handler+0xcc/0xe4 [ 43.686991][ T4035] el0t_64_sync+0x1a0/0x1a4 [ 43.688169][ T4035] Code: d503201f 9600c549 52800038 4b1803f8 (b87802f8) [ 43.689994][ T4035] ---[ end trace d5bad9f82a5bbab2 ]--- [ 43.982545][ T4035] Kernel panic - not syncing: Oops: Fatal exception [ 43.984389][ T4035] SMP: stopping secondary CPUs [ 43.985730][ T4035] Kernel Offset: disabled [ 43.986888][ T4035] CPU features: 0x8,000081c1,21302e40 [ 43.988300][ T4035] Memory Limit: none [ 44.281941][ T4035] Rebooting in 86400 seconds..