Warning: Permanently added '10.128.1.80' (ED25519) to the list of known hosts. 2026/07/15 12:41:41 parsed 1 programs 2026/07/15 12:41:41 serving rpc on tcp://35773 [ 24.065053][ T24] audit: type=1400 audit(1784119301.019:64): 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 [ 24.086280][ T24] audit: type=1400 audit(1784119301.019:65): 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 [ 24.106045][ T24] audit: type=1400 audit(1784119301.019:66): 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 [ 24.686035][ T24] audit: type=1400 audit(1784119301.639:67): avc: denied { mounton } for pid=294 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 [ 24.687160][ T294] cgroup: Unknown subsys name 'net' [ 24.708725][ T24] audit: type=1400 audit(1784119301.639:68): avc: denied { mount } for pid=294 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 [ 24.735953][ T24] audit: type=1400 audit(1784119301.669:69): avc: denied { unmount } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.736136][ T294] cgroup: Unknown subsys name 'devices' [ 24.848532][ T294] cgroup: Unknown subsys name 'hugetlb' [ 24.854137][ T294] cgroup: Unknown subsys name 'rlimit' [ 24.997775][ T24] audit: type=1400 audit(1784119301.959:70): avc: denied { setattr } for pid=294 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 [ 25.016967][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 25.021064][ T24] audit: type=1400 audit(1784119301.959:71): avc: denied { create } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.049946][ T24] audit: type=1400 audit(1784119301.959:72): avc: denied { write } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.070249][ T24] audit: type=1400 audit(1784119301.959:73): avc: denied { read } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.100995][ T294] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.480524][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 25.491204][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 25.765081][ T328] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.772769][ T328] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.780294][ T328] device bridge_slave_0 entered promiscuous mode [ 25.787318][ T328] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.794409][ T328] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.801836][ T328] device bridge_slave_1 entered promiscuous mode [ 25.834285][ T328] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.841365][ T328] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.848645][ T328] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.855660][ T328] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.872515][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.880097][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.887658][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.896185][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.904433][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.911464][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.920912][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.929073][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.936079][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.946801][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.955873][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.969741][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.980213][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.988362][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.995757][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.003981][ T328] device veth0_vlan entered promiscuous mode [ 26.014738][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.024404][ T328] device veth1_macvtap entered promiscuous mode [ 26.036182][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.044781][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/15 12:41:43 executed programs: 0 [ 26.489867][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.496921][ T362] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.504783][ T362] device bridge_slave_0 entered promiscuous mode [ 26.511874][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.519084][ T362] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.526773][ T362] device bridge_slave_1 entered promiscuous mode [ 26.566923][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.573992][ T362] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.581418][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.588449][ T362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.607844][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.615381][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.622962][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.632180][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.640573][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.647626][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.659737][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.667996][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.675008][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.685606][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.694940][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.710597][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.721728][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.729798][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.737539][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.745735][ T362] device veth0_vlan entered promiscuous mode [ 26.756485][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 26.765116][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.774736][ T362] device veth1_macvtap entered promiscuous mode [ 26.785063][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 26.792972][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 26.801711][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.811681][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 26.820002][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.844738][ T381] ================================================================== [ 26.852860][ T381] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 26.859528][ T381] Write of size 8 at addr ffff8881112ad150 by task syz.2.17/381 [ 26.867140][ T381] [ 26.869470][ T381] CPU: 1 PID: 381 Comm: syz.2.17 Not tainted syzkaller #0 [ 26.876552][ T381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 26.886589][ T381] Call Trace: [ 26.889871][ T381] __dump_stack+0x21/0x24 [ 26.894218][ T381] dump_stack_lvl+0x1a7/0x208 [ 26.898876][ T381] ? show_regs_print_info+0x18/0x18 [ 26.904054][ T381] ? thaw_kernel_threads+0x220/0x220 [ 26.909319][ T381] ? debug_smp_processor_id+0x17/0x20 [ 26.914667][ T381] print_address_description+0x7f/0x2c0 [ 26.920204][ T381] ? mutex_lock+0x85/0xf0 [ 26.924515][ T381] kasan_report+0x100/0x140 [ 26.928996][ T381] ? mutex_lock+0x85/0xf0 [ 26.933389][ T381] kasan_check_range+0x249/0x2a0 [ 26.938305][ T381] __kasan_check_write+0x14/0x20 [ 26.943220][ T381] mutex_lock+0x85/0xf0 [ 26.947356][ T381] ? mutex_trylock+0xb0/0xb0 [ 26.951924][ T381] ? l2tp_session_put+0xb2/0x1a0 [ 26.956833][ T381] ? l2tp_session_delete+0x3a9/0x4a0 [ 26.962119][ T381] pppol2tp_release+0x178/0x2b0 [ 26.966946][ T381] sock_close+0xb8/0x200 [ 26.971172][ T381] ? sock_mmap+0xa0/0xa0 [ 26.975405][ T381] __fput+0x2dc/0x730 [ 26.979375][ T381] ____fput+0x15/0x20 [ 26.983409][ T381] task_work_run+0x127/0x190 [ 26.987988][ T381] exit_to_user_mode_loop+0xcb/0xe0 [ 26.993189][ T381] exit_to_user_mode_prepare+0x76/0xa0 [ 26.998633][ T381] syscall_exit_to_user_mode+0x1d/0x40 [ 27.004098][ T381] do_syscall_64+0x3d/0x40 [ 27.008517][ T381] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.014400][ T381] RIP: 0033:0x7feea85ece59 [ 27.018801][ T381] 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 [ 27.038414][ T381] RSP: 002b:00007ffff2a40558 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 27.046947][ T381] RAX: 0000000000000000 RBX: 00007ffff2a40640 RCX: 00007feea85ece59 [ 27.054930][ T381] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 27.062884][ T381] RBP: 00000000000068c0 R08: 0000000000000001 R09: 0000000000000000 [ 27.070839][ T381] R10: 0000001b32920000 R11: 0000000000000246 R12: 0000000000000000 [ 27.078813][ T381] R13: 00007feea8874fac R14: 00007feea8874fa8 R15: 00007feea8874fa0 [ 27.086766][ T381] [ 27.089094][ T381] Allocated by task 381: [ 27.093326][ T381] __kasan_kmalloc+0xd4/0x100 [ 27.097992][ T381] __kmalloc+0x19f/0x330 [ 27.102227][ T381] l2tp_session_create+0x39/0xb60 [ 27.107230][ T381] pppol2tp_connect+0xbf5/0x1640 [ 27.112147][ T381] __sys_connect+0x3ce/0x450 [ 27.116719][ T381] __x64_sys_connect+0x7a/0x90 [ 27.121466][ T381] do_syscall_64+0x31/0x40 [ 27.125873][ T381] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.131739][ T381] [ 27.134050][ T381] Freed by task 381: [ 27.137946][ T381] kasan_set_track+0x4a/0x70 [ 27.142530][ T381] kasan_set_free_info+0x23/0x40 [ 27.147463][ T381] ____kasan_slab_free+0x125/0x160 [ 27.152649][ T381] __kasan_slab_free+0x11/0x20 [ 27.157391][ T381] slab_free_freelist_hook+0xc5/0x190 [ 27.162745][ T381] kfree+0xc0/0x270 [ 27.166538][ T381] l2tp_session_put+0xb2/0x1a0 [ 27.171287][ T381] l2tp_session_delete+0x3a9/0x4a0 [ 27.176474][ T381] pppol2tp_release+0x169/0x2b0 [ 27.181308][ T381] sock_close+0xb8/0x200 [ 27.185531][ T381] __fput+0x2dc/0x730 [ 27.189494][ T381] ____fput+0x15/0x20 [ 27.193459][ T381] task_work_run+0x127/0x190 [ 27.198032][ T381] exit_to_user_mode_loop+0xcb/0xe0 [ 27.203212][ T381] exit_to_user_mode_prepare+0x76/0xa0 [ 27.208654][ T381] syscall_exit_to_user_mode+0x1d/0x40 [ 27.214090][ T381] do_syscall_64+0x3d/0x40 [ 27.218504][ T381] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.224371][ T381] [ 27.226695][ T381] The buggy address belongs to the object at ffff8881112ad000 [ 27.226695][ T381] which belongs to the cache kmalloc-512 of size 512 [ 27.240737][ T381] The buggy address is located 336 bytes inside of [ 27.240737][ T381] 512-byte region [ffff8881112ad000, ffff8881112ad200) [ 27.254007][ T381] The buggy address belongs to the page: [ 27.259678][ T381] page:ffffea000444ab00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1112ac [ 27.269904][ T381] head:ffffea000444ab00 order:2 compound_mapcount:0 compound_pincount:0 [ 27.278215][ T381] flags: 0x4000000000010200(slab|head) [ 27.283691][ T381] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 27.292656][ T381] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.301226][ T381] page dumped because: kasan: bad access detected [ 27.307618][ T381] page_owner tracks the page as allocated [ 27.313346][ T381] 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 362, ts 26836361550, free_ts 26833456609 [ 27.333728][ T381] prep_new_page+0x176/0x190 [ 27.338306][ T381] get_page_from_freelist+0x225f/0x23f0 [ 27.343833][ T381] __alloc_pages_nodemask+0x29a/0x640 [ 27.349185][ T381] new_slab+0x84/0x3f0 [ 27.353240][ T381] ___slab_alloc+0x2f8/0x4c0 [ 27.357811][ T381] __slab_alloc+0x63/0xa0 [ 27.362123][ T381] __kmalloc_track_caller+0x1e4/0x310 [ 27.367478][ T381] __alloc_skb+0xdc/0x520 [ 27.372071][ T381] netlink_sendmsg+0x693/0xb70 [ 27.376827][ T381] __sys_sendto+0x467/0x620 [ 27.381311][ T381] __x64_sys_sendto+0xe5/0x100 [ 27.386087][ T381] do_syscall_64+0x31/0x40 [ 27.390506][ T381] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 27.396379][ T381] page last free stack trace: [ 27.401050][ T381] __free_pages_ok+0x80b/0x830 [ 27.405827][ T381] __free_pages+0xd8/0x390 [ 27.410229][ T381] __free_slab+0xcf/0x190 [ 27.414544][ T381] unfreeze_partials+0x150/0x180 [ 27.419468][ T381] put_cpu_partial+0xc1/0x180 [ 27.424159][ T381] __slab_free+0x2c9/0x3a0 [ 27.428653][ T381] ___cache_free+0x10e/0x130 [ 27.433233][ T381] qlink_free+0x50/0x90 [ 27.437381][ T381] qlist_free_all+0x5f/0xb0 [ 27.441870][ T381] kasan_quarantine_reduce+0x14a/0x160 [ 27.447316][ T381] __kasan_slab_alloc+0x2f/0xe0 [ 27.452156][ T381] slab_post_alloc_hook+0x5d/0x2f0 [ 27.457260][ T381] kmem_cache_alloc+0x15a/0x2d0 [ 27.462099][ T381] __alloc_skb+0x9e/0x520 [ 27.466416][ T381] netlink_ack+0x35c/0xb30 [ 27.470821][ T381] netlink_rcv_skb+0x267/0x430 [ 27.475564][ T381] [ 27.477874][ T381] Memory state around the buggy address: [ 27.483491][ T381] ffff8881112ad000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.491544][ T381] ffff8881112ad080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.499600][ T381] >ffff8881112ad100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.507645][ T381] ^ [ 27.514311][ T381] ffff8881112ad180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.522370][ T381] ffff8881112ad200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.530422][ T381] ================================================================== [ 27.538493][ T381] Disabling lock debugging due to kernel taint