Warning: Permanently added '10.128.0.189' (ED25519) to the list of known hosts. 2026/07/18 06:37:47 parsed 1 programs 2026/07/18 06:37:47 serving rpc on tcp://40313 [ 86.019058][ T24] audit: type=1400 audit(1784356667.430:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 86.040735][ T24] audit: type=1400 audit(1784356667.430:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 86.060284][ T24] audit: type=1400 audit(1784356667.430:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 86.967705][ T24] audit: type=1400 audit(1784356668.380:67): avc: denied { mounton } for pid=293 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 86.971198][ T293] cgroup: Unknown subsys name 'net' [ 86.990502][ T24] audit: type=1400 audit(1784356668.380:68): avc: denied { mount } for pid=293 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 87.017713][ T24] audit: type=1400 audit(1784356668.410:69): avc: denied { unmount } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 87.018177][ T293] cgroup: Unknown subsys name 'devices' [ 87.163819][ T293] cgroup: Unknown subsys name 'hugetlb' [ 87.169437][ T293] cgroup: Unknown subsys name 'rlimit' [ 87.318664][ T24] audit: type=1400 audit(1784356668.730:70): avc: denied { setattr } for pid=293 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 87.342005][ T24] audit: type=1400 audit(1784356668.730:71): avc: denied { create } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 87.362453][ T24] audit: type=1400 audit(1784356668.730:72): avc: denied { write } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 87.380202][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 87.383452][ T24] audit: type=1400 audit(1784356668.730:73): avc: denied { read } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 87.429543][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 87.791654][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 87.802643][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 87.899564][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.906746][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.914643][ T304] device bridge_slave_0 entered promiscuous mode [ 87.922551][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.929632][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.937259][ T304] device bridge_slave_1 entered promiscuous mode [ 87.991452][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.998512][ T304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.005824][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.012896][ T304] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.031618][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.038849][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.046563][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 88.054072][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.064388][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.072692][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.079779][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.088896][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.098719][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.105784][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.119742][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.128955][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 88.144230][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.156534][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.164757][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.172674][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 88.180872][ T304] device veth0_vlan entered promiscuous mode [ 88.191813][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 88.200955][ T304] device veth1_macvtap entered promiscuous mode [ 88.210597][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 88.222448][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 88.872929][ T7] device bridge_slave_1 left promiscuous mode [ 88.879317][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.891841][ T7] device bridge_slave_0 left promiscuous mode [ 88.898158][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.906406][ T7] device veth1_macvtap left promiscuous mode [ 88.912505][ T7] device veth0_vlan left promiscuous mode 2026/07/18 06:37:50 executed programs: 0 [ 89.185301][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.192787][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.200132][ T365] device bridge_slave_0 entered promiscuous mode [ 89.207286][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.214380][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.221805][ T365] device bridge_slave_1 entered promiscuous mode [ 89.271092][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.278172][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.285523][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.292729][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.310257][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 89.318039][ T309] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.325697][ T309] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.336183][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.344524][ T309] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.351562][ T309] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.363963][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.372335][ T309] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.379368][ T309] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.388156][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 89.397774][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 89.410983][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 89.422431][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 89.430575][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 89.438221][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 89.446481][ T365] device veth0_vlan entered promiscuous mode [ 89.456794][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 89.465875][ T365] device veth1_macvtap entered promiscuous mode [ 89.475100][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 89.485057][ T309] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 89.506872][ T379] ================================================================== [ 89.515027][ T379] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 89.521812][ T379] Write of size 8 at addr ffff888111647150 by task syz.2.17/379 [ 89.529436][ T379] [ 89.531775][ T379] CPU: 0 PID: 379 Comm: syz.2.17 Not tainted syzkaller #0 [ 89.538869][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 89.548927][ T379] Call Trace: [ 89.552229][ T379] __dump_stack+0x21/0x24 [ 89.556724][ T379] dump_stack_lvl+0x1a7/0x208 [ 89.561437][ T379] ? show_regs_print_info+0x18/0x18 [ 89.566632][ T379] ? thaw_kernel_threads+0x220/0x220 [ 89.571925][ T379] ? debug_smp_processor_id+0x17/0x20 [ 89.577313][ T379] print_address_description+0x7f/0x2c0 [ 89.582853][ T379] ? mutex_lock+0x85/0xf0 [ 89.587172][ T379] kasan_report+0x100/0x140 [ 89.591683][ T379] ? mutex_lock+0x85/0xf0 [ 89.596009][ T379] kasan_check_range+0x249/0x2a0 [ 89.600959][ T379] __kasan_check_write+0x14/0x20 [ 89.605904][ T379] mutex_lock+0x85/0xf0 [ 89.610060][ T379] ? mutex_trylock+0xb0/0xb0 [ 89.614644][ T379] ? l2tp_session_put+0xb2/0x1a0 [ 89.619573][ T379] ? l2tp_session_delete+0x3a9/0x4a0 [ 89.624854][ T379] pppol2tp_release+0x178/0x2b0 [ 89.629696][ T379] sock_close+0xb8/0x200 [ 89.633963][ T379] ? sock_mmap+0xa0/0xa0 [ 89.638195][ T379] __fput+0x2dc/0x730 [ 89.642183][ T379] ____fput+0x15/0x20 [ 89.646178][ T379] task_work_run+0x127/0x190 [ 89.650779][ T379] exit_to_user_mode_loop+0xcb/0xe0 [ 89.655992][ T379] exit_to_user_mode_prepare+0x76/0xa0 [ 89.661442][ T379] syscall_exit_to_user_mode+0x1d/0x40 [ 89.666895][ T379] do_syscall_64+0x3d/0x40 [ 89.671308][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 89.677333][ T379] RIP: 0033:0x7f6f8224de99 [ 89.681739][ T379] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 89.701339][ T379] RSP: 002b:00007fff84ad5c58 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 89.709758][ T379] RAX: 0000000000000000 RBX: 00007fff84ad5d40 RCX: 00007f6f8224de99 [ 89.717741][ T379] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 89.725713][ T379] RBP: 0000000000015d81 R08: 0000000000000001 R09: 0000000000000000 [ 89.733714][ T379] R10: 0000001b32c20000 R11: 0000000000000246 R12: 0000000000000000 [ 89.741690][ T379] R13: 00007f6f824d5fac R14: 00007f6f824d5fa8 R15: 00007f6f824d5fa0 [ 89.749655][ T379] [ 89.751982][ T379] Allocated by task 379: [ 89.756230][ T379] __kasan_kmalloc+0xd4/0x100 [ 89.760903][ T379] __kmalloc+0x19f/0x330 [ 89.765138][ T379] l2tp_session_create+0x39/0xb60 [ 89.770156][ T379] pppol2tp_connect+0xbf5/0x1640 [ 89.775089][ T379] __sys_connect+0x3ce/0x450 [ 89.779667][ T379] __x64_sys_connect+0x7a/0x90 [ 89.784600][ T379] do_syscall_64+0x31/0x40 [ 89.789024][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 89.794901][ T379] [ 89.797221][ T379] Freed by task 379: [ 89.801110][ T379] kasan_set_track+0x4a/0x70 [ 89.805697][ T379] kasan_set_free_info+0x23/0x40 [ 89.810627][ T379] ____kasan_slab_free+0x125/0x160 [ 89.815735][ T379] __kasan_slab_free+0x11/0x20 [ 89.820491][ T379] slab_free_freelist_hook+0xc5/0x190 [ 89.825856][ T379] kfree+0xc0/0x270 [ 89.829658][ T379] l2tp_session_put+0xb2/0x1a0 [ 89.834410][ T379] l2tp_session_delete+0x3a9/0x4a0 [ 89.839523][ T379] pppol2tp_release+0x169/0x2b0 [ 89.844364][ T379] sock_close+0xb8/0x200 [ 89.848664][ T379] __fput+0x2dc/0x730 [ 89.852673][ T379] ____fput+0x15/0x20 [ 89.856650][ T379] task_work_run+0x127/0x190 [ 89.861241][ T379] exit_to_user_mode_loop+0xcb/0xe0 [ 89.866432][ T379] exit_to_user_mode_prepare+0x76/0xa0 [ 89.871902][ T379] syscall_exit_to_user_mode+0x1d/0x40 [ 89.877360][ T379] do_syscall_64+0x3d/0x40 [ 89.881775][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 89.887667][ T379] [ 89.889992][ T379] The buggy address belongs to the object at ffff888111647000 [ 89.889992][ T379] which belongs to the cache kmalloc-512 of size 512 [ 89.904130][ T379] The buggy address is located 336 bytes inside of [ 89.904130][ T379] 512-byte region [ffff888111647000, ffff888111647200) [ 89.917840][ T379] The buggy address belongs to the page: [ 89.923489][ T379] page:ffffea0004459100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111644 [ 89.933799][ T379] head:ffffea0004459100 order:2 compound_mapcount:0 compound_pincount:0 [ 89.942117][ T379] flags: 0x4000000000010200(slab|head) [ 89.947571][ T379] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 89.956150][ T379] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 89.964736][ T379] page dumped because: kasan: bad access detected [ 89.971157][ T379] page_owner tracks the page as allocated [ 89.976887][ T379] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 365, ts 89496351020, free_ts 89452942745 [ 89.997308][ T379] prep_new_page+0x176/0x190 [ 90.001914][ T379] get_page_from_freelist+0x225f/0x23f0 [ 90.007467][ T379] __alloc_pages_nodemask+0x29a/0x640 [ 90.012838][ T379] new_slab+0x84/0x3f0 [ 90.017050][ T379] ___slab_alloc+0x2f8/0x4c0 [ 90.021631][ T379] __slab_alloc+0x63/0xa0 [ 90.025952][ T379] __kmalloc+0x1f9/0x330 [ 90.030185][ T379] fib6_info_alloc+0x34/0xe0 [ 90.034766][ T379] ip6_route_info_create+0x4c7/0x1450 [ 90.040127][ T379] ip6_route_add+0x27/0x130 [ 90.044619][ T379] addrconf_add_dev+0x385/0x4c0 [ 90.049457][ T379] addrconf_dev_config+0x1c3/0x510 [ 90.054562][ T379] addrconf_notify+0x9d8/0xea0 [ 90.059315][ T379] raw_notifier_call_chain+0x90/0x100 [ 90.064678][ T379] __dev_notify_flags+0x2f4/0x5b0 [ 90.069694][ T379] dev_change_flags+0xe3/0x1a0 [ 90.074442][ T379] page last free stack trace: [ 90.079140][ T379] __free_pages_ok+0x80b/0x830 [ 90.083896][ T379] __free_pages+0xd8/0x390 [ 90.088306][ T379] __free_slab+0xcf/0x190 [ 90.092621][ T379] unfreeze_partials+0x150/0x180 [ 90.097630][ T379] put_cpu_partial+0xc1/0x180 [ 90.102295][ T379] __slab_free+0x2c9/0x3a0 [ 90.106703][ T379] ___cache_free+0x10e/0x130 [ 90.111281][ T379] qlink_free+0x50/0x90 [ 90.115443][ T379] qlist_free_all+0x5f/0xb0 [ 90.119936][ T379] kasan_quarantine_reduce+0x14a/0x160 [ 90.125399][ T379] __kasan_slab_alloc+0x2f/0xe0 [ 90.130242][ T379] slab_post_alloc_hook+0x5d/0x2f0 [ 90.135343][ T379] kmem_cache_alloc+0x15a/0x2d0 [ 90.140187][ T379] __alloc_skb+0x9e/0x520 [ 90.144537][ T379] rtmsg_ifinfo_build_skb+0x75/0x180 [ 90.149971][ T379] rtnetlink_event+0xd2/0x1a0 [ 90.154635][ T379] [ 90.156952][ T379] Memory state around the buggy address: [ 90.162587][ T379] ffff888111647000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 90.171302][ T379] ffff888111647080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 90.179621][ T379] >ffff888111647100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 90.187706][ T379] ^ [ 90.194379][ T379] ffff888111647180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 90.202436][ T379] ffff888111647200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 90.210549][ T379] ================================================================== [ 90.218772][ T379] Disabling lock debugging due to kernel taint