Warning: Permanently added '10.128.1.90' (ED25519) to the list of known hosts. 2026/07/14 15:01:56 parsed 1 programs 2026/07/14 15:01:56 serving rpc on tcp://42443 [ 21.991251][ T24] audit: type=1400 audit(1784041316.940:64): 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 [ 22.012581][ T24] audit: type=1400 audit(1784041316.940:65): 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 [ 22.032485][ T24] audit: type=1400 audit(1784041316.940:66): 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 [ 22.908852][ T24] audit: type=1400 audit(1784041317.850:67): 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 [ 22.912079][ T293] cgroup: Unknown subsys name 'net' [ 22.931733][ T24] audit: type=1400 audit(1784041317.850:68): 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 [ 22.959030][ T24] audit: type=1400 audit(1784041317.880:69): 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 [ 22.959459][ T293] cgroup: Unknown subsys name 'devices' [ 23.101768][ T293] cgroup: Unknown subsys name 'hugetlb' [ 23.107365][ T293] cgroup: Unknown subsys name 'rlimit' [ 23.254442][ T24] audit: type=1400 audit(1784041318.200:70): 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 [ 23.277677][ T24] audit: type=1400 audit(1784041318.200:71): 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 [ 23.294355][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 23.298147][ T24] audit: type=1400 audit(1784041318.200:72): 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 [ 23.326934][ T24] audit: type=1400 audit(1784041318.200:73): 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 [ 23.354984][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 23.752798][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 23.763738][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 23.904301][ T312] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.911392][ T312] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.918722][ T312] device bridge_slave_0 entered promiscuous mode [ 23.925701][ T312] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.932744][ T312] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.940028][ T312] device bridge_slave_1 entered promiscuous mode [ 23.980734][ T312] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.987775][ T312] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.995067][ T312] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.002117][ T312] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.019511][ T112] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.026825][ T112] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.034366][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 24.042114][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.051976][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.060252][ T112] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.067283][ T112] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.076117][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.084567][ T112] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.091628][ T112] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.104388][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.113536][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.128122][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.139277][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.148006][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.155558][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.164725][ T312] device veth0_vlan entered promiscuous mode [ 24.174523][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.183580][ T312] device veth1_macvtap entered promiscuous mode [ 24.193222][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.203555][ T112] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/14 15:01:59 executed programs: 0 [ 24.901033][ T9] device bridge_slave_1 left promiscuous mode [ 24.907753][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.915621][ T9] device bridge_slave_0 left promiscuous mode [ 24.921961][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.931244][ T9] device veth1_macvtap left promiscuous mode [ 24.937296][ T9] device veth0_vlan left promiscuous mode [ 25.030771][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.037855][ T363] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.045377][ T363] device bridge_slave_0 entered promiscuous mode [ 25.052273][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.059318][ T363] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.066980][ T363] device bridge_slave_1 entered promiscuous mode [ 25.106547][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.113653][ T363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.120958][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.127989][ T363] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.145359][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.152952][ T317] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.160137][ T317] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.168852][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.177106][ T317] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.184156][ T317] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.193006][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.201271][ T317] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.208288][ T317] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.219846][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.235891][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.244801][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.256668][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.264783][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.273233][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.281422][ T363] device veth0_vlan entered promiscuous mode [ 25.292403][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.301742][ T363] device veth1_macvtap entered promiscuous mode [ 25.311653][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 25.328002][ T317] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 25.344199][ T386] ================================================================== [ 25.352421][ T386] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 25.359111][ T386] Write of size 8 at addr ffff888111593150 by task syz.2.17/386 [ 25.366734][ T386] [ 25.369077][ T386] CPU: 1 PID: 386 Comm: syz.2.17 Not tainted syzkaller #0 [ 25.376170][ T386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 25.386232][ T386] Call Trace: [ 25.389516][ T386] __dump_stack+0x21/0x24 [ 25.393841][ T386] dump_stack_lvl+0x1a7/0x208 [ 25.398533][ T386] ? show_regs_print_info+0x18/0x18 [ 25.403726][ T386] ? thaw_kernel_threads+0x220/0x220 [ 25.409013][ T386] ? debug_smp_processor_id+0x17/0x20 [ 25.414396][ T386] print_address_description+0x7f/0x2c0 [ 25.419926][ T386] ? mutex_lock+0x85/0xf0 [ 25.424242][ T386] kasan_report+0x100/0x140 [ 25.428739][ T386] ? mutex_lock+0x85/0xf0 [ 25.433067][ T386] kasan_check_range+0x249/0x2a0 [ 25.437996][ T386] __kasan_check_write+0x14/0x20 [ 25.442922][ T386] mutex_lock+0x85/0xf0 [ 25.447150][ T386] ? mutex_trylock+0xb0/0xb0 [ 25.451726][ T386] ? l2tp_session_put+0xb2/0x1a0 [ 25.456674][ T386] ? l2tp_session_delete+0x3a9/0x4a0 [ 25.461945][ T386] pppol2tp_release+0x178/0x2b0 [ 25.466784][ T386] sock_close+0xb8/0x200 [ 25.471028][ T386] ? sock_mmap+0xa0/0xa0 [ 25.475272][ T386] __fput+0x2dc/0x730 [ 25.479244][ T386] ____fput+0x15/0x20 [ 25.483216][ T386] task_work_run+0x127/0x190 [ 25.487798][ T386] exit_to_user_mode_loop+0xcb/0xe0 [ 25.492990][ T386] exit_to_user_mode_prepare+0x76/0xa0 [ 25.498435][ T386] syscall_exit_to_user_mode+0x1d/0x40 [ 25.503879][ T386] do_syscall_64+0x3d/0x40 [ 25.508304][ T386] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.514182][ T386] RIP: 0033:0x7fd081a7be59 [ 25.518584][ T386] 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 [ 25.538304][ T386] RSP: 002b:00007ffe31a8f118 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 25.546709][ T386] RAX: 0000000000000000 RBX: 00007ffe31a8f200 RCX: 00007fd081a7be59 [ 25.554695][ T386] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 25.562660][ T386] RBP: 00000000000062ea R08: 0000000000000001 R09: 0000000000000000 [ 25.570637][ T386] R10: 0000001b32a20000 R11: 0000000000000246 R12: 0000000000000000 [ 25.578645][ T386] R13: 00007fd081d03fac R14: 00007fd081d03fa8 R15: 00007fd081d03fa0 [ 25.586611][ T386] [ 25.588933][ T386] Allocated by task 386: [ 25.593168][ T386] __kasan_kmalloc+0xd4/0x100 [ 25.597831][ T386] __kmalloc+0x19f/0x330 [ 25.602057][ T386] l2tp_session_create+0x39/0xb60 [ 25.607066][ T386] pppol2tp_connect+0xbf5/0x1640 [ 25.611988][ T386] __sys_connect+0x3ce/0x450 [ 25.616566][ T386] __x64_sys_connect+0x7a/0x90 [ 25.621318][ T386] do_syscall_64+0x31/0x40 [ 25.625727][ T386] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.631599][ T386] [ 25.633912][ T386] Freed by task 386: [ 25.637798][ T386] kasan_set_track+0x4a/0x70 [ 25.642375][ T386] kasan_set_free_info+0x23/0x40 [ 25.647304][ T386] ____kasan_slab_free+0x125/0x160 [ 25.652401][ T386] __kasan_slab_free+0x11/0x20 [ 25.657184][ T386] slab_free_freelist_hook+0xc5/0x190 [ 25.662556][ T386] kfree+0xc0/0x270 [ 25.666353][ T386] l2tp_session_put+0xb2/0x1a0 [ 25.671113][ T386] l2tp_session_delete+0x3a9/0x4a0 [ 25.676210][ T386] pppol2tp_release+0x169/0x2b0 [ 25.681048][ T386] sock_close+0xb8/0x200 [ 25.685276][ T386] __fput+0x2dc/0x730 [ 25.689244][ T386] ____fput+0x15/0x20 [ 25.693224][ T386] task_work_run+0x127/0x190 [ 25.698250][ T386] exit_to_user_mode_loop+0xcb/0xe0 [ 25.703445][ T386] exit_to_user_mode_prepare+0x76/0xa0 [ 25.708898][ T386] syscall_exit_to_user_mode+0x1d/0x40 [ 25.714350][ T386] do_syscall_64+0x3d/0x40 [ 25.718813][ T386] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.724695][ T386] [ 25.727026][ T386] The buggy address belongs to the object at ffff888111593000 [ 25.727026][ T386] which belongs to the cache kmalloc-512 of size 512 [ 25.741115][ T386] The buggy address is located 336 bytes inside of [ 25.741115][ T386] 512-byte region [ffff888111593000, ffff888111593200) [ 25.754377][ T386] The buggy address belongs to the page: [ 25.760021][ T386] page:ffffea0004456400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111590 [ 25.770259][ T386] head:ffffea0004456400 order:2 compound_mapcount:0 compound_pincount:0 [ 25.778601][ T386] flags: 0x4000000000010200(slab|head) [ 25.784056][ T386] raw: 4000000000010200 ffffea00043eff00 0000000300000003 ffff888100043080 [ 25.792652][ T386] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 25.801220][ T386] page dumped because: kasan: bad access detected [ 25.807633][ T386] page_owner tracks the page as allocated [ 25.813360][ T386] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 106, ts 4908195049, free_ts 0 [ 25.831406][ T386] prep_new_page+0x176/0x190 [ 25.835998][ T386] get_page_from_freelist+0x225f/0x23f0 [ 25.841529][ T386] __alloc_pages_nodemask+0x29a/0x640 [ 25.846887][ T386] new_slab+0x84/0x3f0 [ 25.850944][ T386] ___slab_alloc+0x2f8/0x4c0 [ 25.855516][ T386] __slab_alloc+0x63/0xa0 [ 25.859832][ T386] __kmalloc_track_caller+0x1e4/0x310 [ 25.865191][ T386] __alloc_skb+0xdc/0x520 [ 25.869532][ T386] alloc_skb_with_frags+0xa3/0x560 [ 25.874628][ T386] sock_alloc_send_pskb+0x87f/0x9a0 [ 25.879824][ T386] unix_dgram_sendmsg+0x6f3/0x18f0 [ 25.884932][ T386] sock_write_iter+0x2a6/0x3a0 [ 25.889686][ T386] vfs_write+0x770/0xd70 [ 25.893932][ T386] ksys_write+0x14a/0x260 [ 25.898249][ T386] __x64_sys_write+0x7b/0x90 [ 25.902833][ T386] do_syscall_64+0x31/0x40 [ 25.907233][ T386] page_owner free stack trace missing [ 25.912602][ T386] [ 25.914930][ T386] Memory state around the buggy address: [ 25.920555][ T386] ffff888111593000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.928714][ T386] ffff888111593080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.936780][ T386] >ffff888111593100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.944927][ T386] ^ [ 25.951690][ T386] ffff888111593180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.959743][ T386] ffff888111593200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.967799][ T386] ================================================================== [ 25.975852][ T386] Disabling lock debugging due to kernel taint