Warning: Permanently added '10.128.1.165' (ED25519) to the list of known hosts. 2026/07/23 21:45:59 parsed 1 programs 2026/07/23 21:45:59 serving rpc on tcp://38971 [ 21.775642][ T28] audit: type=1400 audit(1784843159.978:64): avc: denied { node_bind } for pid=295 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 21.796710][ T28] audit: type=1400 audit(1784843159.978:65): avc: denied { module_request } for pid=295 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 [ 22.536257][ T28] audit: type=1400 audit(1784843160.738:66): avc: denied { mounton } for pid=301 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 [ 22.537350][ T301] cgroup: Unknown subsys name 'net' [ 22.559023][ T28] audit: type=1400 audit(1784843160.738:67): avc: denied { mount } for pid=301 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 [ 22.586324][ T28] audit: type=1400 audit(1784843160.768:68): avc: denied { unmount } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 22.586475][ T301] cgroup: Unknown subsys name 'devices' [ 22.724256][ T301] cgroup: Unknown subsys name 'hugetlb' [ 22.729899][ T301] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 22.837237][ T28] audit: type=1400 audit(1784843161.038:69): avc: denied { setattr } for pid=301 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 22.859147][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.860430][ T28] audit: type=1400 audit(1784843161.038:70): avc: denied { create } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.882359][ T301] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 22.889381][ T28] audit: type=1400 audit(1784843161.038:71): avc: denied { write } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.918360][ T28] audit: type=1400 audit(1784843161.038:72): avc: denied { read } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.938598][ T28] audit: type=1400 audit(1784843161.038:73): avc: denied { mounton } for pid=301 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 23.542482][ T307] request_module fs-gadgetfs succeeded, but still no fs? [ 24.164717][ T359] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.171763][ T359] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.179145][ T359] device bridge_slave_0 entered promiscuous mode [ 24.186180][ T359] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.193567][ T359] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.200857][ T359] device bridge_slave_1 entered promiscuous mode [ 24.236207][ T359] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.243295][ T359] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.250640][ T359] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.257671][ T359] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.274659][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.282269][ T346] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.289586][ T346] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.298270][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.306574][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.313609][ T346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.322162][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.330567][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.337602][ T346] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.349870][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.358911][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.371607][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.382355][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.390564][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.398101][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.406861][ T359] device veth0_vlan entered promiscuous mode [ 24.416159][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.425101][ T359] device veth1_macvtap entered promiscuous mode [ 24.434273][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.444369][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/23 21:46:02 executed programs: 0 [ 24.679504][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.686710][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.694135][ T370] device bridge_slave_0 entered promiscuous mode [ 24.701240][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.708365][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.715908][ T370] device bridge_slave_1 entered promiscuous mode [ 24.757943][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.765013][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.772238][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.779303][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.802923][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.810647][ T346] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.818146][ T346] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.826998][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.835288][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.842295][ T346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.851059][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.859626][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.866697][ T346] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.882453][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.891569][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.904599][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.923697][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.931647][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.939140][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.947199][ T370] device veth0_vlan entered promiscuous mode [ 24.962498][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.971565][ T370] device veth1_macvtap entered promiscuous mode [ 24.980522][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.990466][ T346] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.114747][ T375] ================================================================== [ 25.122842][ T375] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 25.129615][ T375] Write of size 8 at addr ffff88812aa51550 by task syz.2.17/375 [ 25.137223][ T375] [ 25.139623][ T375] CPU: 0 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0 [ 25.146711][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 25.156844][ T375] Call Trace: [ 25.160107][ T375] [ 25.163018][ T375] __dump_stack+0x21/0x24 [ 25.167336][ T375] dump_stack_lvl+0x110/0x170 [ 25.172003][ T375] ? __cfi_dump_stack_lvl+0x8/0x8 [ 25.177012][ T375] ? mutex_lock+0x86/0x1b0 [ 25.181506][ T375] print_address_description+0x71/0x200 [ 25.187038][ T375] print_report+0x4a/0x60 [ 25.191355][ T375] kasan_report+0x122/0x150 [ 25.195845][ T375] ? mutex_lock+0x86/0x1b0 [ 25.200254][ T375] kasan_check_range+0x249/0x2a0 [ 25.205173][ T375] __kasan_check_write+0x14/0x20 [ 25.210089][ T375] mutex_lock+0x86/0x1b0 [ 25.214318][ T375] ? __cfi_mutex_lock+0x10/0x10 [ 25.219151][ T375] ? kfree+0x6f/0xf0 [ 25.223028][ T375] ? l2tp_session_put+0xaf/0x1a0 [ 25.227970][ T375] ? l2tp_session_delete+0x3df/0x4d0 [ 25.233237][ T375] pppol2tp_release+0x178/0x2b0 [ 25.238073][ T375] sock_close+0xc9/0x220 [ 25.242329][ T375] ? __cfi_sock_close+0x10/0x10 [ 25.247491][ T375] __fput+0x1fd/0x8f0 [ 25.251577][ T375] ____fput+0x15/0x20 [ 25.255545][ T375] task_work_run+0x1e1/0x250 [ 25.260121][ T375] ? __cfi_task_work_run+0x10/0x10 [ 25.265217][ T375] ? free_nsproxy+0x21f/0x270 [ 25.269880][ T375] do_exit+0xaf2/0x2850 [ 25.274037][ T375] ? __cfi_do_exit+0x10/0x10 [ 25.278617][ T375] ? _raw_spin_unlock+0x4c/0x70 [ 25.283451][ T375] ? __kasan_check_write+0x14/0x20 [ 25.288633][ T375] ? _raw_spin_lock_irq+0x95/0xf0 [ 25.293640][ T375] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 25.299167][ T375] do_group_exit+0x21b/0x2e0 [ 25.303739][ T375] ? __kasan_check_write+0x14/0x20 [ 25.308840][ T375] ? recalc_sigpending+0x180/0x1c0 [ 25.313986][ T375] get_signal+0x167c/0x1700 [ 25.318491][ T375] ? __cfi_get_signal+0x10/0x10 [ 25.323328][ T375] ? usleep_range_state+0x130/0x130 [ 25.328523][ T375] arch_do_signal_or_restart+0xd1/0x11c0 [ 25.334161][ T375] ? hrtimer_nanosleep+0x18f/0x340 [ 25.339266][ T375] ? __cfi_hrtimer_nanosleep+0x10/0x10 [ 25.344719][ T375] ? __cfi_hrtimer_wakeup+0x10/0x10 [ 25.349913][ T375] ? get_timespec64+0x116/0x1b0 [ 25.354749][ T375] ? __cfi_arch_do_signal_or_restart+0x10/0x10 [ 25.360895][ T375] ? __x64_sys_clock_nanosleep+0xb0/0xb0 [ 25.366542][ T375] ? do_user_addr_fault+0x9a5/0x1030 [ 25.371831][ T375] exit_to_user_mode_loop+0x7a/0xb0 [ 25.377013][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 25.382453][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 25.387980][ T375] do_syscall_64+0x58/0xa0 [ 25.392379][ T375] ? clear_bhb_loop+0x30/0x80 [ 25.397034][ T375] ? clear_bhb_loop+0x30/0x80 [ 25.401694][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.407573][ T375] RIP: 0033:0x7fe60d359017 [ 25.411979][ T375] Code: Unable to access opcode bytes at 0x7fe60d358fed. [ 25.418971][ T375] RSP: 002b:00007ffe015e79e0 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 [ 25.427372][ T375] RAX: fffffffffffffdfc RBX: 0000555569ed5500 RCX: 00007fe60d359017 [ 25.435325][ T375] RDX: 00007ffe015e7a20 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.443277][ T375] RBP: 00007fe60d433eaf R08: 0000000000000000 R09: 0000000000000000 [ 25.451227][ T375] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 25.459178][ T375] R13: 00007fe60d625fac R14: 00007fe60d625fa0 R15: 00007fe60d625fa0 [ 25.467133][ T375] [ 25.470134][ T375] [ 25.472445][ T375] Allocated by task 374: [ 25.476834][ T375] kasan_set_track+0x4b/0x70 [ 25.481411][ T375] kasan_save_alloc_info+0x1f/0x30 [ 25.486500][ T375] __kasan_kmalloc+0x95/0xb0 [ 25.491074][ T375] __kmalloc+0xb4/0x1e0 [ 25.495206][ T375] l2tp_session_create+0x38/0xbd0 [ 25.500220][ T375] pppol2tp_connect+0xbf5/0x1640 [ 25.505170][ T375] __sys_connect+0x3da/0x460 [ 25.509755][ T375] __x64_sys_connect+0x7a/0x90 [ 25.514503][ T375] x64_sys_call+0x88d/0x9a0 [ 25.518990][ T375] do_syscall_64+0x4c/0xa0 [ 25.523391][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.529270][ T375] [ 25.531573][ T375] Freed by task 375: [ 25.535439][ T375] kasan_set_track+0x4b/0x70 [ 25.540015][ T375] kasan_save_free_info+0x2b/0x40 [ 25.545021][ T375] ____kasan_slab_free+0x132/0x180 [ 25.550115][ T375] __kasan_slab_free+0x11/0x20 [ 25.554860][ T375] slab_free_freelist_hook+0xc2/0x190 [ 25.560213][ T375] __kmem_cache_free+0xb7/0x1b0 [ 25.565050][ T375] kfree+0x6f/0xf0 [ 25.568758][ T375] l2tp_session_put+0xaf/0x1a0 [ 25.573514][ T375] l2tp_session_delete+0x3df/0x4d0 [ 25.578604][ T375] pppol2tp_release+0x169/0x2b0 [ 25.583456][ T375] sock_close+0xc9/0x220 [ 25.587684][ T375] __fput+0x1fd/0x8f0 [ 25.591654][ T375] ____fput+0x15/0x20 [ 25.595637][ T375] task_work_run+0x1e1/0x250 [ 25.600213][ T375] do_exit+0xaf2/0x2850 [ 25.604372][ T375] do_group_exit+0x21b/0x2e0 [ 25.608952][ T375] get_signal+0x167c/0x1700 [ 25.613462][ T375] arch_do_signal_or_restart+0xd1/0x11c0 [ 25.619078][ T375] exit_to_user_mode_loop+0x7a/0xb0 [ 25.624258][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 25.629787][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 25.635227][ T375] do_syscall_64+0x58/0xa0 [ 25.639628][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.645504][ T375] [ 25.647810][ T375] The buggy address belongs to the object at ffff88812aa51400 [ 25.647810][ T375] which belongs to the cache kmalloc-512 of size 512 [ 25.661843][ T375] The buggy address is located 336 bytes inside of [ 25.661843][ T375] 512-byte region [ffff88812aa51400, ffff88812aa51600) [ 25.675120][ T375] [ 25.677441][ T375] The buggy address belongs to the physical page: [ 25.683841][ T375] page:ffffea0004aa9400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12aa50 [ 25.694160][ T375] head:ffffea0004aa9400 order:2 compound_mapcount:0 compound_pincount:0 [ 25.702484][ T375] flags: 0x4000000000010200(slab|head|zone=1) [ 25.708542][ T375] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 25.717206][ T375] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 25.725867][ T375] page dumped because: kasan: bad access detected [ 25.732290][ T375] page_owner tracks the page as allocated [ 25.737990][ T375] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 39, tgid 39 (kworker/1:1), ts 25012840567, free_ts 24086883818 [ 25.758376][ T375] post_alloc_hook+0x1f5/0x210 [ 25.763131][ T375] prep_new_page+0x1c/0x110 [ 25.767616][ T375] get_page_from_freelist+0x2ca9/0x2d20 [ 25.773144][ T375] __alloc_pages+0x1fa/0x610 [ 25.777717][ T375] alloc_slab_page+0x6e/0xf0 [ 25.782378][ T375] new_slab+0x98/0x3e0 [ 25.786434][ T375] ___slab_alloc+0x70f/0xb70 [ 25.791005][ T375] __slab_alloc+0x5e/0xa0 [ 25.795318][ T375] __kmem_cache_alloc_node+0x204/0x2d0 [ 25.800762][ T375] __kmalloc+0xa4/0x1e0 [ 25.804911][ T375] ___neigh_create+0x6e3/0x1db0 [ 25.809749][ T375] __neigh_create+0x31/0x40 [ 25.814252][ T375] ip6_finish_output2+0xaaf/0x18b0 [ 25.819523][ T375] ip6_finish_output+0x60b/0xbe0 [ 25.824451][ T375] ip6_output+0x1fa/0x410 [ 25.828765][ T375] mld_sendpack+0x7ce/0xda0 [ 25.833335][ T375] page last free stack trace: [ 25.837986][ T375] free_unref_page_prepare+0x80c/0x820 [ 25.843432][ T375] free_unref_page+0x93/0x530 [ 25.848094][ T375] __free_pages+0x67/0x100 [ 25.852494][ T375] free_pages+0x82/0x90 [ 25.856648][ T375] kasan_depopulate_vmalloc_pte+0x6b/0x90 [ 25.862434][ T375] __apply_to_page_range+0x8db/0xc80 [ 25.867705][ T375] apply_to_existing_page_range+0x38/0x50 [ 25.873408][ T375] kasan_release_vmalloc+0x97/0xb0 [ 25.878588][ T375] __purge_vmap_area_lazy+0xf09/0x1870 [ 25.884025][ T375] drain_vmap_area_work+0x3e/0xd0 [ 25.889029][ T375] process_one_work+0x717/0xc30 [ 25.893946][ T375] worker_thread+0xa4d/0x11d0 [ 25.898599][ T375] kthread+0x281/0x320 [ 25.902646][ T375] ret_from_fork+0x1f/0x30 [ 25.907044][ T375] [ 25.909364][ T375] Memory state around the buggy address: [ 25.915319][ T375] ffff88812aa51400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.923364][ T375] ffff88812aa51480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.931400][ T375] >ffff88812aa51500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.939435][ T375] ^ [ 25.946083][ T375] ffff88812aa51580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.954120][ T375] ffff88812aa51600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.962175][ T375] ===================================================