Warning: Permanently added '10.128.0.124' (ED25519) to the list of known hosts. 2026/06/27 05:00:24 parsed 1 programs 2026/06/27 05:00:24 serving rpc on tcp://36631 [ 21.347830][ T24] audit: type=1400 audit(1782536424.439:64): 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 [ 21.369679][ T24] audit: type=1400 audit(1782536424.439:65): 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 [ 21.389545][ T24] audit: type=1400 audit(1782536424.439:66): 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 [ 21.954618][ T24] audit: type=1400 audit(1782536425.049:67): 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 [ 21.955638][ T293] cgroup: Unknown subsys name 'net' [ 21.977275][ T24] audit: type=1400 audit(1782536425.049:68): 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 [ 22.004500][ T24] audit: type=1400 audit(1782536425.079:69): 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 [ 22.004662][ T293] cgroup: Unknown subsys name 'devices' [ 22.112947][ T293] cgroup: Unknown subsys name 'hugetlb' [ 22.118554][ T293] cgroup: Unknown subsys name 'rlimit' [ 22.291384][ T24] audit: type=1400 audit(1782536425.379:70): 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 [ 22.314630][ T24] audit: type=1400 audit(1782536425.389:71): 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 [ 22.319810][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.335145][ T24] audit: type=1400 audit(1782536425.389:72): 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 [ 22.363827][ T24] audit: type=1400 audit(1782536425.389:73): 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 [ 22.387334][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 22.751049][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 22.761812][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 23.280515][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.287769][ T349] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.295197][ T349] device bridge_slave_0 entered promiscuous mode [ 23.302078][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.309116][ T349] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.316594][ T349] device bridge_slave_1 entered promiscuous mode [ 23.347318][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.354362][ T349] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.361653][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.368670][ T349] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.383768][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.391275][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.398551][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.407692][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.416167][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.423215][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.431624][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 23.439765][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.446796][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.458123][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 23.467220][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 23.479330][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 23.490094][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 23.498200][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 23.505699][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 23.513772][ T349] device veth0_vlan entered promiscuous mode [ 23.522975][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 23.531938][ T349] device veth1_macvtap entered promiscuous mode [ 23.540619][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 23.550300][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/27 05:00:26 executed programs: 0 [ 23.816475][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.823907][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.831160][ T365] device bridge_slave_0 entered promiscuous mode [ 23.843357][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.850384][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.857728][ T365] device bridge_slave_1 entered promiscuous mode [ 23.899540][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 23.906978][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.922942][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 23.931228][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.939451][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.946489][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.954216][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 23.963033][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 23.971309][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 23.979444][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.986466][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.998482][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.013881][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.022281][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.034407][ T365] device veth0_vlan entered promiscuous mode [ 24.040635][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.048740][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.057181][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.067589][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.077207][ T365] device veth1_macvtap entered promiscuous mode [ 24.086964][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.097828][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.117737][ T395] ================================================================== [ 24.125847][ T395] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 24.132503][ T395] Write of size 8 at addr ffff888110f83150 by task syz.2.17/395 [ 24.140101][ T395] [ 24.142424][ T395] CPU: 0 PID: 395 Comm: syz.2.17 Not tainted syzkaller #0 [ 24.149508][ T395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 24.159540][ T395] Call Trace: [ 24.162814][ T395] __dump_stack+0x21/0x24 [ 24.167117][ T395] dump_stack_lvl+0x1a7/0x208 [ 24.171771][ T395] ? show_regs_print_info+0x18/0x18 [ 24.176943][ T395] ? thaw_kernel_threads+0x220/0x220 [ 24.182201][ T395] ? debug_smp_processor_id+0x17/0x20 [ 24.187553][ T395] print_address_description+0x7f/0x2c0 [ 24.193079][ T395] ? mutex_lock+0x85/0xf0 [ 24.197383][ T395] kasan_report+0x100/0x140 [ 24.201865][ T395] ? mutex_lock+0x85/0xf0 [ 24.206168][ T395] kasan_check_range+0x249/0x2a0 [ 24.211082][ T395] __kasan_check_write+0x14/0x20 [ 24.215995][ T395] mutex_lock+0x85/0xf0 [ 24.220147][ T395] ? mutex_trylock+0xb0/0xb0 [ 24.224722][ T395] ? l2tp_session_put+0xb2/0x1a0 [ 24.229644][ T395] ? l2tp_session_delete+0x3a9/0x4a0 [ 24.234910][ T395] pppol2tp_release+0x178/0x2b0 [ 24.239746][ T395] sock_close+0xb8/0x200 [ 24.243967][ T395] ? sock_mmap+0xa0/0xa0 [ 24.248206][ T395] __fput+0x2dc/0x730 [ 24.252175][ T395] ____fput+0x15/0x20 [ 24.256135][ T395] task_work_run+0x127/0x190 [ 24.260705][ T395] exit_to_user_mode_loop+0xcb/0xe0 [ 24.265882][ T395] exit_to_user_mode_prepare+0x76/0xa0 [ 24.271323][ T395] syscall_exit_to_user_mode+0x1d/0x40 [ 24.276761][ T395] do_syscall_64+0x3d/0x40 [ 24.281157][ T395] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.287026][ T395] RIP: 0033:0x7f632814ee59 [ 24.291422][ T395] 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 [ 24.311011][ T395] RSP: 002b:00007ffe40780768 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 24.319412][ T395] RAX: 0000000000000000 RBX: 00007ffe40780850 RCX: 00007f632814ee59 [ 24.327561][ T395] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 24.335513][ T395] RBP: 0000000000005e1f R08: 0000000000000001 R09: 0000000000000000 [ 24.343464][ T395] R10: 0000001b32c20000 R11: 0000000000000246 R12: 0000000000000000 [ 24.351415][ T395] R13: 00007f63283c7fac R14: 00007f63283c7fa8 R15: 00007f63283c7fa0 [ 24.359364][ T395] [ 24.361672][ T395] Allocated by task 395: [ 24.365893][ T395] __kasan_kmalloc+0xd4/0x100 [ 24.370548][ T395] __kmalloc+0x19f/0x330 [ 24.374769][ T395] l2tp_session_create+0x39/0xb60 [ 24.379768][ T395] pppol2tp_connect+0xbf5/0x1640 [ 24.384679][ T395] __sys_connect+0x3ce/0x450 [ 24.389245][ T395] __x64_sys_connect+0x7a/0x90 [ 24.393984][ T395] do_syscall_64+0x31/0x40 [ 24.398374][ T395] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.404235][ T395] [ 24.406537][ T395] Freed by task 395: [ 24.410406][ T395] kasan_set_track+0x4a/0x70 [ 24.414971][ T395] kasan_set_free_info+0x23/0x40 [ 24.419881][ T395] ____kasan_slab_free+0x125/0x160 [ 24.424964][ T395] __kasan_slab_free+0x11/0x20 [ 24.429698][ T395] slab_free_freelist_hook+0xc5/0x190 [ 24.435074][ T395] kfree+0xc0/0x270 [ 24.438873][ T395] l2tp_session_put+0xb2/0x1a0 [ 24.443614][ T395] l2tp_session_delete+0x3a9/0x4a0 [ 24.448696][ T395] pppol2tp_release+0x169/0x2b0 [ 24.453520][ T395] sock_close+0xb8/0x200 [ 24.457735][ T395] __fput+0x2dc/0x730 [ 24.461693][ T395] ____fput+0x15/0x20 [ 24.465653][ T395] task_work_run+0x127/0x190 [ 24.470217][ T395] exit_to_user_mode_loop+0xcb/0xe0 [ 24.475394][ T395] exit_to_user_mode_prepare+0x76/0xa0 [ 24.480826][ T395] syscall_exit_to_user_mode+0x1d/0x40 [ 24.486256][ T395] do_syscall_64+0x3d/0x40 [ 24.490649][ T395] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.496507][ T395] [ 24.498812][ T395] The buggy address belongs to the object at ffff888110f83000 [ 24.498812][ T395] which belongs to the cache kmalloc-512 of size 512 [ 24.512841][ T395] The buggy address is located 336 bytes inside of [ 24.512841][ T395] 512-byte region [ffff888110f83000, ffff888110f83200) [ 24.526088][ T395] The buggy address belongs to the page: [ 24.531716][ T395] page:ffffea000443e000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110f80 [ 24.542293][ T395] head:ffffea000443e000 order:2 compound_mapcount:0 compound_pincount:0 [ 24.550604][ T395] flags: 0x4000000000010200(slab|head) [ 24.556050][ T395] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 24.564609][ T395] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 24.573165][ T395] page dumped because: kasan: bad access detected [ 24.579552][ T395] page_owner tracks the page as allocated [ 24.585273][ T395] 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 49, ts 24106468956, free_ts 24097134650 [ 24.605558][ T395] prep_new_page+0x176/0x190 [ 24.610125][ T395] get_page_from_freelist+0x225f/0x23f0 [ 24.615646][ T395] __alloc_pages_nodemask+0x29a/0x640 [ 24.620991][ T395] new_slab+0x84/0x3f0 [ 24.625037][ T395] ___slab_alloc+0x2f8/0x4c0 [ 24.629603][ T395] __slab_alloc+0x63/0xa0 [ 24.633904][ T395] kmem_cache_alloc_trace+0x1a8/0x2e0 [ 24.639248][ T395] ipv6_add_addr+0x408/0xd90 [ 24.643808][ T395] addrconf_add_linklocal+0x209/0x660 [ 24.649155][ T395] addrconf_addr_gen+0x53f/0x6a0 [ 24.654063][ T395] addrconf_dev_config+0x299/0x510 [ 24.659144][ T395] addrconf_notify+0x9d8/0xea0 [ 24.663882][ T395] raw_notifier_call_chain+0x90/0x100 [ 24.669229][ T395] netdev_state_change+0x175/0x230 [ 24.674311][ T395] linkwatch_do_dev+0x102/0x140 [ 24.679134][ T395] __linkwatch_run_queue+0x4b1/0x7c0 [ 24.684390][ T395] page last free stack trace: [ 24.689045][ T395] __free_pages_ok+0x80b/0x830 [ 24.693784][ T395] __free_pages+0xd8/0x390 [ 24.698173][ T395] __free_slab+0xcf/0x190 [ 24.702479][ T395] unfreeze_partials+0x150/0x180 [ 24.707386][ T395] put_cpu_partial+0xc1/0x180 [ 24.712040][ T395] __slab_free+0x2c9/0x3a0 [ 24.716435][ T395] ___cache_free+0x10e/0x130 [ 24.720997][ T395] qlink_free+0x50/0x90 [ 24.725150][ T395] qlist_free_all+0x5f/0xb0 [ 24.729632][ T395] kasan_quarantine_reduce+0x14a/0x160 [ 24.735069][ T395] __kasan_slab_alloc+0x2f/0xe0 [ 24.739900][ T395] slab_post_alloc_hook+0x5d/0x2f0 [ 24.744989][ T395] kmem_cache_alloc+0x15a/0x2d0 [ 24.749816][ T395] sock_alloc_inode+0x1b/0xb0 [ 24.754468][ T395] new_inode_pseudo+0x62/0x210 [ 24.759206][ T395] __sock_create+0x12c/0x770 [ 24.763764][ T395] [ 24.766068][ T395] Memory state around the buggy address: [ 24.771672][ T395] ffff888110f83000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.779712][ T395] ffff888110f83080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.787752][ T395] >ffff888110f83100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.795786][ T395] ^ [ 24.802434][ T395] ffff888110f83180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.810472][ T395] ffff888110f83200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.818599][ T395] ================================================================== [ 24.826631][ T395] Disabling lock debugging due to kernel taint