Warning: Permanently added '10.128.0.6' (ED25519) to the list of known hosts. 2026/10/16 17:14:37 parsed 1 programs 2026/10/16 17:14:37 serving rpc on tcp://37237 [ 31.561217][ T24] audit: type=1400 audit(1792170877.230:64): 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 [ 31.582574][ T24] audit: type=1400 audit(1792170877.230:65): 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 [ 31.602164][ T24] audit: type=1400 audit(1792170877.230:66): 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 [ 32.500732][ T24] audit: type=1400 audit(1792170878.170:67): 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 [ 32.504155][ T293] cgroup: Unknown subsys name 'net' [ 32.523548][ T24] audit: type=1400 audit(1792170878.170:68): 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 [ 32.550786][ T24] audit: type=1400 audit(1792170878.190:69): 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 [ 32.551269][ T293] cgroup: Unknown subsys name 'devices' [ 32.671328][ T293] cgroup: Unknown subsys name 'hugetlb' [ 32.676976][ T293] cgroup: Unknown subsys name 'rlimit' [ 32.797799][ T24] audit: type=1400 audit(1792170878.460:70): 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 [ 32.821178][ T24] audit: type=1400 audit(1792170878.460:71): 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 [ 32.841721][ T24] audit: type=1400 audit(1792170878.460:72): 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 [ 32.862312][ T24] audit: type=1400 audit(1792170878.460:73): 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 [ 32.880277][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 32.917658][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 33.333350][ T301] request_module fs-gadgetfs succeeded, but still no fs? [ 33.344687][ T301] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 33.768838][ T333] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.775952][ T333] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.783507][ T333] device bridge_slave_0 entered promiscuous mode [ 33.790409][ T333] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.797433][ T333] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.805205][ T333] device bridge_slave_1 entered promiscuous mode [ 33.845896][ T333] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.852974][ T333] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.860450][ T333] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.867494][ T333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.887180][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.894962][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.902323][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.911684][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 33.920080][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.927128][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.940258][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 33.948516][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.955594][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.970612][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 33.978792][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 33.991823][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 34.004080][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 34.012369][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 34.019871][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 34.028065][ T333] device veth0_vlan entered promiscuous mode [ 34.038907][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 34.048070][ T333] device veth1_macvtap entered promiscuous mode [ 34.058027][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 34.068404][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/10/16 17:14:40 executed programs: 0 [ 34.568892][ T366] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.576416][ T366] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.584075][ T366] device bridge_slave_0 entered promiscuous mode [ 34.591260][ T366] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.598332][ T366] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.605805][ T366] device bridge_slave_1 entered promiscuous mode [ 34.648967][ T366] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.656036][ T366] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.663351][ T366] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.670407][ T366] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.693016][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.700675][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.707872][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.716967][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 34.725238][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.732325][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.745022][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 34.753327][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.760489][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.774259][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 34.789840][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 34.800881][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 34.816167][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 34.824846][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 34.832575][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 34.841524][ T366] device veth0_vlan entered promiscuous mode [ 34.854689][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 34.864800][ T366] device veth1_macvtap entered promiscuous mode [ 34.875561][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 34.886473][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 34.908887][ T389] ================================================================== [ 34.917183][ T389] BUG: KASAN: use-after-free in rcu_segcblist_enqueue+0x85/0xa0 [ 34.925018][ T389] Write of size 8 at addr ffff88810fc91590 by task syz.2.17/389 [ 34.932783][ T389] [ 34.935133][ T389] CPU: 1 PID: 389 Comm: syz.2.17 Not tainted syzkaller #0 [ 34.942255][ T389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 34.952339][ T389] Call Trace: [ 34.955654][ T389] __dump_stack+0x21/0x24 [ 34.959987][ T389] dump_stack_lvl+0x1a7/0x208 [ 34.964665][ T389] ? show_regs_print_info+0x18/0x18 [ 34.969891][ T389] ? thaw_kernel_threads+0x220/0x220 [ 34.975182][ T389] print_address_description+0x7f/0x2c0 [ 34.980750][ T389] ? rcu_segcblist_enqueue+0x85/0xa0 [ 34.986039][ T389] kasan_report+0x100/0x140 [ 34.990547][ T389] ? rcu_segcblist_enqueue+0x85/0xa0 [ 34.995839][ T389] __asan_report_store8_noabort+0x17/0x20 [ 35.001561][ T389] rcu_segcblist_enqueue+0x85/0xa0 [ 35.006853][ T389] call_rcu+0x4df/0x1090 [ 35.011153][ T389] ? rcu_gp_kthread_wake+0x90/0x90 [ 35.016298][ T389] ? __kasan_check_write+0x14/0x20 [ 35.021419][ T389] ? __wake_up_bit+0x120/0x120 [ 35.026221][ T389] security_inode_free+0xb4/0xd0 [ 35.031195][ T389] __destroy_inode+0x175/0x4f0 [ 35.035962][ T389] evict+0x7e8/0x940 [ 35.039886][ T389] ? mode_strip_sgid+0x150/0x150 [ 35.044834][ T389] ? _raw_spin_lock+0x94/0xf0 [ 35.049520][ T389] ? _raw_spin_trylock_bh+0x150/0x150 [ 35.054910][ T389] ? __kasan_check_read+0x11/0x20 [ 35.059960][ T389] ? __kasan_check_write+0x14/0x20 [ 35.065082][ T389] iput+0x654/0x7e0 [ 35.068888][ T389] dentry_unlink_inode+0x2d5/0x390 [ 35.074001][ T389] __dentry_kill+0x45b/0x660 [ 35.078616][ T389] dentry_kill+0xc0/0x2a0 [ 35.082977][ T389] dput+0x42/0x80 [ 35.086722][ T389] __fput+0x4bd/0x730 [ 35.090718][ T389] ____fput+0x15/0x20 [ 35.094717][ T389] task_work_run+0x127/0x190 [ 35.099309][ T389] exit_to_user_mode_loop+0xcb/0xe0 [ 35.104543][ T389] exit_to_user_mode_prepare+0x76/0xa0 [ 35.110004][ T389] syscall_exit_to_user_mode+0x1d/0x40 [ 35.115466][ T389] do_syscall_64+0x3d/0x40 [ 35.119882][ T389] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 35.125789][ T389] RIP: 0033:0x7f0578886559 [ 35.130201][ T389] 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 [ 35.149912][ T389] RSP: 002b:00007ffe01f2ff98 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 35.158349][ T389] RAX: 0000000000000000 RBX: 00007ffe01f30080 RCX: 00007f0578886559 [ 35.166323][ T389] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 35.174308][ T389] RBP: 000000000000883e R08: 0000000000000001 R09: 0000000000000000 [ 35.182308][ T389] R10: 0000001b32d20000 R11: 0000000000000246 R12: 0000000000000000 [ 35.190304][ T389] R13: 00007f0578b0dfac R14: 00007f0578b0dfa8 R15: 00007f0578b0dfa0 [ 35.198318][ T389] [ 35.200816][ T389] Allocated by task 389: [ 35.205088][ T389] __kasan_kmalloc+0xd4/0x100 [ 35.209784][ T389] __kmalloc+0x19f/0x330 [ 35.214036][ T389] l2tp_session_create+0x39/0xb60 [ 35.219061][ T389] pppol2tp_connect+0xbf5/0x1640 [ 35.223998][ T389] __sys_connect+0x3ce/0x450 [ 35.228592][ T389] __x64_sys_connect+0x7a/0x90 [ 35.233375][ T389] do_syscall_64+0x31/0x40 [ 35.237793][ T389] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 35.243878][ T389] [ 35.246293][ T389] Freed by task 388: [ 35.250208][ T389] kasan_set_track+0x4a/0x70 [ 35.254822][ T389] kasan_set_free_info+0x23/0x40 [ 35.259761][ T389] ____kasan_slab_free+0x125/0x160 [ 35.264866][ T389] __kasan_slab_free+0x11/0x20 [ 35.269632][ T389] slab_free_freelist_hook+0xc5/0x190 [ 35.275017][ T389] kfree+0xc0/0x270 [ 35.278825][ T389] l2tp_session_put+0xb2/0x1a0 [ 35.283611][ T389] l2tp_session_delete+0x3a9/0x4a0 [ 35.288753][ T389] l2tp_tunnel_del_work+0x180/0x3d0 [ 35.293950][ T389] process_one_work+0x6fd/0xbc0 [ 35.298797][ T389] worker_thread+0xa8e/0x13c0 [ 35.303482][ T389] kthread+0x324/0x3b0 [ 35.307564][ T389] ret_from_fork+0x1f/0x30 [ 35.311969][ T389] [ 35.314289][ T389] Last potentially related work creation: [ 35.320022][ T389] kasan_save_stack+0x3a/0x60 [ 35.324703][ T389] __kasan_record_aux_stack+0xd2/0x100 [ 35.330166][ T389] kasan_record_aux_stack_noalloc+0xb/0x10 [ 35.335997][ T389] call_rcu+0x11a/0x1090 [ 35.340250][ T389] pppol2tp_release+0x1e3/0x2b0 [ 35.345111][ T389] sock_close+0xb8/0x200 [ 35.349368][ T389] __fput+0x2dc/0x730 [ 35.353353][ T389] ____fput+0x15/0x20 [ 35.357335][ T389] task_work_run+0x127/0x190 [ 35.361928][ T389] exit_to_user_mode_loop+0xcb/0xe0 [ 35.367143][ T389] exit_to_user_mode_prepare+0x76/0xa0 [ 35.372609][ T389] syscall_exit_to_user_mode+0x1d/0x40 [ 35.378087][ T389] do_syscall_64+0x3d/0x40 [ 35.382509][ T389] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 35.388420][ T389] [ 35.390757][ T389] The buggy address belongs to the object at ffff88810fc91400 [ 35.390757][ T389] which belongs to the cache kmalloc-512 of size 512 [ 35.404819][ T389] The buggy address is located 400 bytes inside of [ 35.404819][ T389] 512-byte region [ffff88810fc91400, ffff88810fc91600) [ 35.418095][ T389] The buggy address belongs to the page: [ 35.423767][ T389] page:ffffea00043f2400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fc90 [ 35.434011][ T389] head:ffffea00043f2400 order:2 compound_mapcount:0 compound_pincount:0 [ 35.442484][ T389] flags: 0x4000000000010200(slab|head) [ 35.447958][ T389] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 35.456550][ T389] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 35.465138][ T389] page dumped because: kasan: bad access detected [ 35.471569][ T389] page_owner tracks the page as allocated [ 35.477301][ T389] 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 7, ts 34883796507, free_ts 34863011004 [ 35.497529][ T389] prep_new_page+0x176/0x190 [ 35.502138][ T389] get_page_from_freelist+0x225f/0x23f0 [ 35.507690][ T389] __alloc_pages_nodemask+0x29a/0x640 [ 35.513084][ T389] new_slab+0x84/0x3f0 [ 35.517171][ T389] ___slab_alloc+0x2f8/0x4c0 [ 35.521798][ T389] __slab_alloc+0x63/0xa0 [ 35.526143][ T389] __kmalloc+0x1f9/0x330 [ 35.530403][ T389] fib6_info_alloc+0x34/0xe0 [ 35.535001][ T389] ip6_route_info_create+0x4c7/0x1450 [ 35.540379][ T389] ip6_route_add+0x27/0x130 [ 35.544888][ T389] addrconf_add_dev+0x385/0x4c0 [ 35.549740][ T389] addrconf_dev_config+0x1c3/0x510 [ 35.554861][ T389] addrconf_notify+0x9d8/0xea0 [ 35.559641][ T389] raw_notifier_call_chain+0x90/0x100 [ 35.565023][ T389] netdev_state_change+0x175/0x230 [ 35.570164][ T389] linkwatch_do_dev+0x102/0x140 [ 35.575021][ T389] page last free stack trace: [ 35.579706][ T389] __free_pages_ok+0x80b/0x830 [ 35.584479][ T389] __free_pages+0xd8/0x390 [ 35.588901][ T389] __free_slab+0xcf/0x190 [ 35.593233][ T389] unfreeze_partials+0x150/0x180 [ 35.598193][ T389] put_cpu_partial+0xc1/0x180 [ 35.602873][ T389] __slab_free+0x2c9/0x3a0 [ 35.607299][ T389] ___cache_free+0x10e/0x130 [ 35.611899][ T389] qlink_free+0x50/0x90 [ 35.616059][ T389] qlist_free_all+0x5f/0xb0 [ 35.620567][ T389] kasan_quarantine_reduce+0x14a/0x160 [ 35.626034][ T389] __kasan_slab_alloc+0x2f/0xe0 [ 35.630898][ T389] slab_post_alloc_hook+0x5d/0x2f0 [ 35.636014][ T389] kmem_cache_alloc+0x15a/0x2d0 [ 35.640875][ T389] __alloc_skb+0x9e/0x520 [ 35.645228][ T389] netlink_ack+0x35c/0xb30 [ 35.649658][ T389] netlink_rcv_skb+0x267/0x430 [ 35.654419][ T389] [ 35.656775][ T389] Memory state around the buggy address: [ 35.662411][ T389] ffff88810fc91480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.670479][ T389] ffff88810fc91500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.678548][ T389] >ffff88810fc91580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.686606][ T389] ^ [ 35.691203][ T389] ffff88810fc91600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.699266][ T389] ffff88810fc91680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.707350][ T389] ================================================================== [ 35.715410][ T389] Disabling lock debugging due to kernel taint