Warning: Permanently added '10.128.1.103' (ED25519) to the list of known hosts. 2026/06/30 00:25:13 parsed 1 programs 2026/06/30 00:25:13 serving rpc on tcp://44225 [ 23.785453][ T24] audit: type=1400 audit(1782779113.160:64): 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 [ 23.806682][ T24] audit: type=1400 audit(1782779113.160:65): 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 [ 23.826347][ T24] audit: type=1400 audit(1782779113.160:66): 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 [ 24.442103][ T24] audit: type=1400 audit(1782779113.820:67): 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 [ 24.443091][ T293] cgroup: Unknown subsys name 'net' [ 24.464825][ T24] audit: type=1400 audit(1782779113.820:68): 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 [ 24.492180][ T24] audit: type=1400 audit(1782779113.840:69): 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 [ 24.492324][ T293] cgroup: Unknown subsys name 'devices' [ 24.602095][ T293] cgroup: Unknown subsys name 'hugetlb' [ 24.607733][ T293] cgroup: Unknown subsys name 'rlimit' [ 24.719360][ T24] audit: type=1400 audit(1782779114.090:70): 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 [ 24.742844][ T24] audit: type=1400 audit(1782779114.090:71): 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 [ 24.749261][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 24.763492][ T24] audit: type=1400 audit(1782779114.090:72): 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 [ 24.792314][ T24] audit: type=1400 audit(1782779114.090:73): 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 [ 24.814191][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.281152][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 25.290951][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 25.366282][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.373559][ T304] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.381022][ T304] device bridge_slave_0 entered promiscuous mode [ 25.387723][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.395326][ T304] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.402806][ T304] device bridge_slave_1 entered promiscuous mode [ 25.437507][ T304] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.444601][ T304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.451883][ T304] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.458914][ T304] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.476080][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.483560][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.491323][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 25.498737][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.508563][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.516783][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.524106][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.532714][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.540931][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.548039][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.559749][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.568663][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.582776][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.593555][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.601791][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.609188][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.618395][ T304] device veth0_vlan entered promiscuous mode [ 25.627956][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.637179][ T304] device veth1_macvtap entered promiscuous mode [ 25.647247][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.657040][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/30 00:25:15 executed programs: 0 [ 26.365882][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.373322][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.381099][ T365] device bridge_slave_0 entered promiscuous mode [ 26.387833][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.395213][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.403143][ T365] device bridge_slave_1 entered promiscuous mode [ 26.442957][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.450022][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.457464][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.464534][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.484541][ T305] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.492038][ T305] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.499344][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 26.506986][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.515843][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.524182][ T305] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.531232][ T305] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.540777][ T9] device bridge_slave_1 left promiscuous mode [ 26.546891][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.554488][ T9] device bridge_slave_0 left promiscuous mode [ 26.560829][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.568477][ T9] device veth1_macvtap left promiscuous mode [ 26.574529][ T9] device veth0_vlan left promiscuous mode [ 26.684736][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.692946][ T305] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.699981][ T305] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.711536][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.722781][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.734747][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.745398][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.753616][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.761224][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.769360][ T365] device veth0_vlan entered promiscuous mode [ 26.778892][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.787898][ T365] device veth1_macvtap entered promiscuous mode [ 26.797215][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.806816][ T305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.860931][ C1] ================================================================== [ 26.869335][ C1] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x6c/0xb0 [ 26.876730][ C1] Read of size 8 at addr ffff8881119e8590 by task ksoftirqd/1/19 [ 26.884460][ C1] [ 26.886810][ C1] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted syzkaller #0 [ 26.894295][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 26.904560][ C1] Call Trace: [ 26.907873][ C1] __dump_stack+0x21/0x24 [ 26.912229][ C1] dump_stack_lvl+0x1a7/0x208 [ 26.917108][ C1] ? show_regs_print_info+0x18/0x18 [ 26.922332][ C1] ? thaw_kernel_threads+0x220/0x220 [ 26.927642][ C1] print_address_description+0x7f/0x2c0 [ 26.933220][ C1] ? rcu_cblist_dequeue+0x6c/0xb0 [ 26.938271][ C1] kasan_report+0x100/0x140 [ 26.942886][ C1] ? rcu_cblist_dequeue+0x6c/0xb0 [ 26.947942][ C1] __asan_report_load8_noabort+0x14/0x20 [ 26.953596][ C1] rcu_cblist_dequeue+0x6c/0xb0 [ 26.958556][ C1] rcu_do_batch+0x448/0xaf0 [ 26.963080][ C1] ? local_bh_enable+0x20/0x20 [ 26.967964][ C1] ? __kasan_check_write+0x14/0x20 [ 26.973077][ C1] ? rcu_report_qs_rnp+0x2bc/0x390 [ 26.978192][ C1] rcu_core+0x50a/0xca0 [ 26.982346][ C1] ? rcu_cpu_kthread_park+0x90/0x90 [ 26.987553][ C1] ? __this_cpu_preempt_check+0x13/0x20 [ 26.993183][ C1] ? rcu_softirq_qs+0xd5/0x1d0 [ 26.997939][ C1] ? rcu_get_gp_kthreads_prio+0x10/0x10 [ 27.003484][ C1] rcu_core_si+0x9/0x10 [ 27.007721][ C1] __do_softirq+0x255/0x563 [ 27.012220][ C1] ? ksoftirqd_should_run+0x20/0x20 [ 27.017434][ C1] run_ksoftirqd+0x23/0x30 [ 27.021850][ C1] smpboot_thread_fn+0x464/0x820 [ 27.026874][ C1] kthread+0x324/0x3b0 [ 27.030942][ C1] ? cpu_report_death+0x1b0/0x1b0 [ 27.035960][ C1] ? kthread_blkcg+0xd0/0xd0 [ 27.040639][ C1] ret_from_fork+0x1f/0x30 [ 27.045133][ C1] [ 27.047454][ C1] Allocated by task 369: [ 27.051693][ C1] __kasan_kmalloc+0xd4/0x100 [ 27.056368][ C1] __kmalloc+0x19f/0x330 [ 27.060719][ C1] l2tp_session_create+0x39/0xb60 [ 27.065753][ C1] pppol2tp_connect+0xbf5/0x1640 [ 27.070686][ C1] __sys_connect+0x3ce/0x450 [ 27.075278][ C1] __x64_sys_connect+0x7a/0x90 [ 27.080034][ C1] do_syscall_64+0x31/0x40 [ 27.084446][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.090525][ C1] [ 27.092865][ C1] Freed by task 305: [ 27.096784][ C1] kasan_set_track+0x4a/0x70 [ 27.101378][ C1] kasan_set_free_info+0x23/0x40 [ 27.106309][ C1] ____kasan_slab_free+0x125/0x160 [ 27.111420][ C1] __kasan_slab_free+0x11/0x20 [ 27.116179][ C1] slab_free_freelist_hook+0xc5/0x190 [ 27.121569][ C1] kfree+0xc0/0x270 [ 27.125373][ C1] l2tp_session_put+0xb2/0x1a0 [ 27.130130][ C1] l2tp_session_delete+0x3a9/0x4a0 [ 27.135494][ C1] l2tp_tunnel_del_work+0x180/0x3d0 [ 27.140724][ C1] process_one_work+0x6fd/0xbc0 [ 27.145815][ C1] worker_thread+0xa8e/0x13c0 [ 27.150639][ C1] kthread+0x324/0x3b0 [ 27.154717][ C1] ret_from_fork+0x1f/0x30 [ 27.159263][ C1] [ 27.161676][ C1] Last potentially related work creation: [ 27.167394][ C1] kasan_save_stack+0x3a/0x60 [ 27.172068][ C1] __kasan_record_aux_stack+0xd2/0x100 [ 27.177524][ C1] kasan_record_aux_stack_noalloc+0xb/0x10 [ 27.183604][ C1] call_rcu+0x11a/0x1090 [ 27.187854][ C1] pppol2tp_release+0x1e3/0x2b0 [ 27.192699][ C1] sock_close+0xb8/0x200 [ 27.196936][ C1] __fput+0x2dc/0x730 [ 27.200913][ C1] ____fput+0x15/0x20 [ 27.205007][ C1] task_work_run+0x127/0x190 [ 27.209610][ C1] exit_to_user_mode_loop+0xcb/0xe0 [ 27.214834][ C1] exit_to_user_mode_prepare+0x76/0xa0 [ 27.220318][ C1] syscall_exit_to_user_mode+0x1d/0x40 [ 27.225776][ C1] do_syscall_64+0x3d/0x40 [ 27.230192][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.236072][ C1] [ 27.238404][ C1] The buggy address belongs to the object at ffff8881119e8400 [ 27.238404][ C1] which belongs to the cache kmalloc-512 of size 512 [ 27.252454][ C1] The buggy address is located 400 bytes inside of [ 27.252454][ C1] 512-byte region [ffff8881119e8400, ffff8881119e8600) [ 27.265713][ C1] The buggy address belongs to the page: [ 27.271346][ C1] page:ffffea0004467a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1119e8 [ 27.281576][ C1] head:ffffea0004467a00 order:2 compound_mapcount:0 compound_pincount:0 [ 27.289905][ C1] flags: 0x4000000000010200(slab|head) [ 27.295458][ C1] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 27.304042][ C1] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.312614][ C1] page dumped because: kasan: bad access detected [ 27.319017][ C1] page_owner tracks the page as allocated [ 27.324754][ C1] 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 9, ts 26825931968, free_ts 26824958824 [ 27.345229][ C1] prep_new_page+0x176/0x190 [ 27.350109][ C1] get_page_from_freelist+0x225f/0x23f0 [ 27.355645][ C1] __alloc_pages_nodemask+0x29a/0x640 [ 27.361013][ C1] new_slab+0x84/0x3f0 [ 27.365107][ C1] ___slab_alloc+0x2f8/0x4c0 [ 27.369694][ C1] __slab_alloc+0x63/0xa0 [ 27.374016][ C1] __kmalloc_track_caller+0x1e4/0x310 [ 27.379383][ C1] __alloc_skb+0xdc/0x520 [ 27.383713][ C1] inet6_netconf_notify_devconf+0xd6/0x190 [ 27.389695][ C1] addrconf_exit_net+0xd6/0x200 [ 27.394570][ C1] cleanup_net+0x589/0xb80 [ 27.398984][ C1] process_one_work+0x6fd/0xbc0 [ 27.403828][ C1] worker_thread+0xa8e/0x13c0 [ 27.408504][ C1] kthread+0x324/0x3b0 [ 27.412574][ C1] ret_from_fork+0x1f/0x30 [ 27.416977][ C1] page last free stack trace: [ 27.421647][ C1] __free_pages_ok+0x80b/0x830 [ 27.426528][ C1] __free_pages+0xd8/0x390 [ 27.431144][ C1] __free_slab+0xcf/0x190 [ 27.435561][ C1] unfreeze_partials+0x150/0x180 [ 27.440493][ C1] put_cpu_partial+0xc1/0x180 [ 27.445183][ C1] __slab_free+0x2c9/0x3a0 [ 27.449684][ C1] ___cache_free+0x10e/0x130 [ 27.454454][ C1] qlink_free+0x50/0x90 [ 27.458691][ C1] qlist_free_all+0x5f/0xb0 [ 27.463191][ C1] kasan_quarantine_reduce+0x14a/0x160 [ 27.468727][ C1] __kasan_slab_alloc+0x2f/0xe0 [ 27.473657][ C1] slab_post_alloc_hook+0x5d/0x2f0 [ 27.478765][ C1] __kmalloc+0x17b/0x330 [ 27.483004][ C1] kernfs_fop_write_iter+0x152/0x400 [ 27.488301][ C1] vfs_write+0x770/0xd70 [ 27.492568][ C1] ksys_write+0x14a/0x260 [ 27.496974][ C1] [ 27.499472][ C1] Memory state around the buggy address: [ 27.505098][ C1] ffff8881119e8480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.513253][ C1] ffff8881119e8500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.521392][ C1] >ffff8881119e8580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.529463][ C1] ^ [ 27.534048][ C1] ffff8881119e8600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.542366][ C1] ffff8881119e8680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.550414][ C1] ================================================================== [ 27.558472][ C1] Disabling lock debugging due to kernel taint