Warning: Permanently added '10.128.1.98' (ED25519) to the list of known hosts. [ 52.631156][ T4167] chnl_net:caif_netlink_parms(): no params data found [ 52.666450][ T4167] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.673790][ T4167] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.682021][ T4167] device bridge_slave_0 entered promiscuous mode [ 52.690300][ T4167] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.697469][ T4167] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.705213][ T4167] device bridge_slave_1 entered promiscuous mode [ 52.724329][ T4167] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.734910][ T4167] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.753903][ T4167] team0: Port device team_slave_0 added [ 52.760904][ T4167] team0: Port device team_slave_1 added [ 52.775356][ T4167] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.782333][ T4167] 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. [ 52.808366][ T4167] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.820293][ T4167] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.827268][ T4167] 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. [ 52.853163][ T4167] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.878286][ T4167] device hsr_slave_0 entered promiscuous mode [ 52.885249][ T4167] device hsr_slave_1 entered promiscuous mode [ 52.958846][ T4167] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.969371][ T4167] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.978270][ T4167] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.987182][ T4167] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.005276][ T4167] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.012411][ T4167] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.020379][ T4167] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.027440][ T4167] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.060786][ T4167] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.073266][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.082554][ T154] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.091294][ T154] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.099376][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.111310][ T4167] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.121650][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.130175][ T154] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.137520][ T154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.151279][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.160477][ T154] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.167669][ T154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.184707][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.193563][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.205750][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.218892][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.229570][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.239945][ T4167] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.253505][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.262067][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.272937][ T4167] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.288284][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.304469][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.313257][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.321627][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.331351][ T4167] device veth0_vlan entered promiscuous mode [ 53.342071][ T4167] device veth1_vlan entered promiscuous mode [ 53.359152][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.367851][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.375959][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.386971][ T4167] device veth0_macvtap entered promiscuous mode [ 53.396044][ T4167] device veth1_macvtap entered promiscuous mode [ 53.409319][ T4167] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.418216][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.427910][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.437510][ T4167] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.446625][ T4167] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.455457][ T4167] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program [ 53.464488][ T4167] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.474348][ T4167] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.485355][ T154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.524608][ T4177] IPv6: ADDRCONF(NETDEV_CHANGE): bpq0: link becomes ready [ 53.548887][ T4179] ================================================================== [ 53.557051][ T4179] BUG: KASAN: use-after-free in ax25_fillin_cb+0x459/0x640 [ 53.564252][ T4179] Read of size 4 at addr ffff8880199ca838 by task syz-executor229/4179 [ 53.572462][ T4179] [ 53.574763][ T4179] CPU: 0 PID: 4179 Comm: syz-executor229 Not tainted 5.15.183-syzkaller #0 [ 53.583324][ T4179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 53.593353][ T4179] Call Trace: [ 53.596610][ T4179] [ 53.599527][ T4179] dump_stack_lvl+0x168/0x230 [ 53.604196][ T4179] ? show_regs_print_info+0x20/0x20 [ 53.609386][ T4179] ? _printk+0xcc/0x110 [ 53.613545][ T4179] ? ax25_fillin_cb+0x459/0x640 [ 53.618403][ T4179] ? load_image+0x3b0/0x3b0 [ 53.622886][ T4179] print_address_description+0x60/0x2d0 [ 53.628404][ T4179] ? ax25_fillin_cb+0x459/0x640 [ 53.633227][ T4179] kasan_report+0xdf/0x130 [ 53.637707][ T4179] ? ax25_fillin_cb+0x459/0x640 [ 53.642543][ T4179] ax25_fillin_cb+0x459/0x640 [ 53.647193][ T4179] ax25_setsockopt+0x8a2/0xa40 [ 53.651932][ T4179] ? ax25_shutdown+0x10/0x10 [ 53.656503][ T4179] ? aa_sock_opt_perm+0x74/0x100 [ 53.661446][ T4179] ? bpf_lsm_socket_setsockopt+0x5/0x10 [ 53.666973][ T4179] ? security_socket_setsockopt+0x7a/0xa0 [ 53.672699][ T4179] ? ax25_shutdown+0x10/0x10 [ 53.677300][ T4179] __sys_setsockopt+0x3d6/0x5e0 [ 53.682167][ T4179] ? __ia32_sys_recv+0xb0/0xb0 [ 53.686924][ T4179] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 53.692897][ T4179] ? lock_chain_count+0x20/0x20 [ 53.697743][ T4179] ? vtime_user_exit+0x2dc/0x400 [ 53.702673][ T4179] __x64_sys_setsockopt+0xb1/0xc0 [ 53.707696][ T4179] do_syscall_64+0x4c/0xa0 [ 53.712196][ T4179] ? clear_bhb_loop+0x15/0x70 [ 53.716866][ T4179] ? clear_bhb_loop+0x15/0x70 [ 53.721527][ T4179] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.727505][ T4179] RIP: 0033:0x7f2182fda619 [ 53.731901][ T4179] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.751490][ T4179] RSP: 002b:00007fff99a4d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 53.759980][ T4179] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2182fda619 [ 53.768044][ T4179] RDX: 0000000000000019 RSI: 0000000000000101 RDI: 0000000000000007 [ 53.776009][ T4179] RBP: 00007fff99a4d220 R08: 0000000000000010 R09: 0000000000000001 [ 53.783974][ T4179] R10: 00002000000001c0 R11: 0000000000000246 R12: 00000000000f4240 [ 53.791934][ T4179] R13: 000000000000d0f1 R14: 00007fff99a4d204 R15: 00007fff99a4d210 [ 53.800153][ T4179] [ 53.803169][ T4179] [ 53.805472][ T4179] Allocated by task 4177: [ 53.809777][ T4179] __kasan_kmalloc+0xb5/0xf0 [ 53.814362][ T4179] ax25_dev_device_up+0x50/0x580 [ 53.819272][ T4179] ax25_device_event+0x483/0x4f0 [ 53.824202][ T4179] raw_notifier_call_chain+0xcb/0x160 [ 53.829560][ T4179] __dev_notify_flags+0x178/0x2d0 [ 53.834572][ T4179] dev_change_flags+0xe3/0x1a0 [ 53.839307][ T4179] dev_ifsioc+0x147/0xe70 [ 53.843626][ T4179] dev_ioctl+0x55f/0xe50 [ 53.847854][ T4179] sock_do_ioctl+0x222/0x2f0 [ 53.852416][ T4179] sock_ioctl+0x4ed/0x6e0 [ 53.856729][ T4179] __se_sys_ioctl+0xfa/0x170 [ 53.861343][ T4179] do_syscall_64+0x4c/0xa0 [ 53.865766][ T4179] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.871659][ T4179] [ 53.873972][ T4179] Freed by task 4178: [ 53.877921][ T4179] kasan_set_track+0x4b/0x70 [ 53.882484][ T4179] kasan_set_free_info+0x1f/0x40 [ 53.887411][ T4179] ____kasan_slab_free+0xd5/0x110 [ 53.892411][ T4179] slab_free_freelist_hook+0xea/0x170 [ 53.897756][ T4179] kfree+0xef/0x2a0 [ 53.901535][ T4179] ax25_release+0x661/0x870 [ 53.906098][ T4179] sock_close+0xd5/0x240 [ 53.910325][ T4179] __fput+0x234/0x930 [ 53.914278][ T4179] task_work_run+0x125/0x1a0 [ 53.918838][ T4179] exit_to_user_mode_loop+0x10f/0x130 [ 53.924181][ T4179] exit_to_user_mode_prepare+0xb1/0x140 [ 53.929699][ T4179] syscall_exit_to_user_mode+0x16/0x40 [ 53.935144][ T4179] do_syscall_64+0x58/0xa0 [ 53.939532][ T4179] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.945397][ T4179] [ 53.947704][ T4179] The buggy address belongs to the object at ffff8880199ca800 [ 53.947704][ T4179] which belongs to the cache kmalloc-192 of size 192 [ 53.961775][ T4179] The buggy address is located 56 bytes inside of [ 53.961775][ T4179] 192-byte region [ffff8880199ca800, ffff8880199ca8c0) [ 53.975030][ T4179] The buggy address belongs to the page: [ 53.980635][ T4179] page:ffffea0000667280 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x199ca [ 53.990755][ T4179] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 53.998280][ T4179] raw: 00fff00000000200 dead000000000100 dead000000000122 ffff888016841a00 [ 54.006852][ T4179] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 54.015427][ T4179] page dumped because: kasan: bad access detected [ 54.021825][ T4179] page_owner tracks the page as allocated [ 54.027523][ T4179] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 2078976948, free_ts 0 [ 54.042335][ T4179] get_page_from_freelist+0x1b77/0x1c60 [ 54.047870][ T4179] __alloc_pages+0x1e1/0x470 [ 54.052433][ T4179] alloc_page_interleave+0x24/0x1e0 [ 54.057617][ T4179] new_slab+0xc0/0x4b0 [ 54.061756][ T4179] ___slab_alloc+0x81e/0xdf0 [ 54.066381][ T4179] __kmalloc_track_caller+0x1cb/0x330 [ 54.071754][ T4179] krealloc+0x5a/0xf0 [ 54.075722][ T4179] add_sysfs_param+0xe8/0x930 [ 54.080373][ T4179] kernel_add_sysfs_param+0xaf/0x120 [ 54.085633][ T4179] param_sysfs_builtin+0x164/0x1e0 [ 54.090721][ T4179] param_sysfs_init+0x66/0x70 [ 54.095373][ T4179] do_one_initcall+0x1ee/0x680 [ 54.100119][ T4179] do_initcall_level+0x137/0x1f0 [ 54.105048][ T4179] do_initcalls+0x4b/0x90 [ 54.109371][ T4179] kernel_init_freeable+0x3ce/0x560 [ 54.114558][ T4179] kernel_init+0x19/0x1b0 [ 54.118878][ T4179] page_owner free stack trace missing [ 54.124229][ T4179] [ 54.126529][ T4179] Memory state around the buggy address: [ 54.132146][ T4179] ffff8880199ca700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 54.140204][ T4179] ffff8880199ca780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 54.148246][ T4179] >ffff8880199ca800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 54.156374][ T4179] ^ [ 54.162268][ T4179] ffff8880199ca880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 54.170310][ T4179] ffff8880199ca900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 54.178347][ T4179] ================================================================== [ 54.186393][ T4179] Disabling lock debugging due to kernel taint [ 54.199536][ T4179] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 54.206763][ T4179] CPU: 0 PID: 4179 Comm: syz-executor229 Tainted: G B 5.15.183-syzkaller #0 [ 54.216738][ T4179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 54.226771][ T4179] Call Trace: [ 54.230027][ T4179] [ 54.232933][ T4179] dump_stack_lvl+0x168/0x230 [ 54.237606][ T4179] ? show_regs_print_info+0x20/0x20 [ 54.242791][ T4179] ? load_image+0x3b0/0x3b0 [ 54.247280][ T4179] panic+0x2c9/0x7f0 [ 54.251293][ T4179] ? bpf_jit_dump+0xd0/0xd0 [ 54.255904][ T4179] ? _raw_spin_unlock_irqrestore+0xf6/0x100 [ 54.261826][ T4179] ? _raw_spin_unlock+0x40/0x40 [ 54.266660][ T4179] ? print_memory_metadata+0x314/0x400 [ 54.272098][ T4179] ? ax25_fillin_cb+0x459/0x640 [ 54.276937][ T4179] check_panic_on_warn+0x80/0xa0 [ 54.281870][ T4179] ? ax25_fillin_cb+0x459/0x640 [ 54.286707][ T4179] end_report+0x6d/0xf0 [ 54.290852][ T4179] kasan_report+0x102/0x130 [ 54.295335][ T4179] ? ax25_fillin_cb+0x459/0x640 [ 54.300159][ T4179] ax25_fillin_cb+0x459/0x640 [ 54.304811][ T4179] ax25_setsockopt+0x8a2/0xa40 [ 54.309548][ T4179] ? ax25_shutdown+0x10/0x10 [ 54.314141][ T4179] ? aa_sock_opt_perm+0x74/0x100 [ 54.319064][ T4179] ? bpf_lsm_socket_setsockopt+0x5/0x10 [ 54.324597][ T4179] ? security_socket_setsockopt+0x7a/0xa0 [ 54.330294][ T4179] ? ax25_shutdown+0x10/0x10 [ 54.334862][ T4179] __sys_setsockopt+0x3d6/0x5e0 [ 54.339691][ T4179] ? __ia32_sys_recv+0xb0/0xb0 [ 54.344426][ T4179] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 54.350468][ T4179] ? lock_chain_count+0x20/0x20 [ 54.355301][ T4179] ? vtime_user_exit+0x2dc/0x400 [ 54.360403][ T4179] __x64_sys_setsockopt+0xb1/0xc0 [ 54.365420][ T4179] do_syscall_64+0x4c/0xa0 [ 54.369830][ T4179] ? clear_bhb_loop+0x15/0x70 [ 54.374592][ T4179] ? clear_bhb_loop+0x15/0x70 [ 54.379256][ T4179] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 54.385146][ T4179] RIP: 0033:0x7f2182fda619 [ 54.389662][ T4179] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 54.409277][ T4179] RSP: 002b:00007fff99a4d1e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 54.417764][ T4179] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2182fda619 [ 54.425717][ T4179] RDX: 0000000000000019 RSI: 0000000000000101 RDI: 0000000000000007 [ 54.433774][ T4179] RBP: 00007fff99a4d220 R08: 0000000000000010 R09: 0000000000000001 [ 54.441921][ T4179] R10: 00002000000001c0 R11: 0000000000000246 R12: 00000000000f4240 [ 54.449870][ T4179] R13: 000000000000d0f1 R14: 00007fff99a4d204 R15: 00007fff99a4d210 [ 54.457838][ T4179] [ 54.461066][ T4179] Kernel Offset: disabled [ 54.465389][ T4179] Rebooting in 86400 seconds..