Warning: Permanently added '10.128.0.81' (ED25519) to the list of known hosts. 2026/06/20 02:29:17 parsed 1 programs 2026/06/20 02:29:17 serving rpc on tcp://39869 [ 23.729793][ T28] audit: type=1400 audit(1781922557.934:64): 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 [ 23.754029][ T28] audit: type=1400 audit(1781922557.934:65): 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 [ 24.738022][ T28] audit: type=1400 audit(1781922558.944:66): avc: denied { mounton } for pid=302 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 [ 24.739313][ T302] cgroup: Unknown subsys name 'net' [ 24.771954][ T28] audit: type=1400 audit(1781922558.944:67): avc: denied { mount } for pid=302 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 [ 24.809487][ T28] audit: type=1400 audit(1781922558.994:68): avc: denied { unmount } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.809727][ T302] cgroup: Unknown subsys name 'devices' [ 24.955971][ T302] cgroup: Unknown subsys name 'hugetlb' [ 24.964548][ T302] cgroup: Unknown subsys name 'rlimit' [ 25.082095][ T28] audit: type=1400 audit(1781922559.284:69): avc: denied { setattr } for pid=302 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 Setting up swapspace version 1, size = 127995904 bytes [ 25.112771][ T28] audit: type=1400 audit(1781922559.284:70): avc: denied { create } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.124593][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.135625][ T28] audit: type=1400 audit(1781922559.284:71): avc: denied { write } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.167920][ T28] audit: type=1400 audit(1781922559.284:72): avc: denied { read } for pid=302 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.171932][ T302] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.195545][ T28] audit: type=1400 audit(1781922559.284:73): avc: denied { mounton } for pid=302 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 [ 26.041892][ T308] request_module fs-gadgetfs succeeded, but still no fs? [ 26.675554][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.683288][ T341] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.691330][ T341] device bridge_slave_0 entered promiscuous mode [ 26.700011][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.708582][ T341] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.713886][ T337] syz-executor (337) used greatest stack depth: 21824 bytes left [ 26.718898][ T341] device bridge_slave_1 entered promiscuous mode [ 26.775477][ T341] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.785715][ T341] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.794360][ T341] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.801904][ T341] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.825605][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.835329][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.844708][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.855157][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.867366][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.878160][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.889147][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.900190][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.910536][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.924212][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.944942][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.962497][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.979146][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.991758][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.001612][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.017307][ T341] device veth0_vlan entered promiscuous mode [ 27.029589][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.041152][ T341] device veth1_macvtap entered promiscuous mode [ 27.053861][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.070381][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/20 02:29:21 executed programs: 0 [ 27.604635][ T371] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.613487][ T371] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.622161][ T371] device bridge_slave_0 entered promiscuous mode [ 27.631814][ T371] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.640818][ T371] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.650837][ T371] device bridge_slave_1 entered promiscuous mode [ 27.712182][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.722974][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.740586][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.750561][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.760343][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.768524][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.778975][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 27.794699][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.805771][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.818343][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.828057][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.842301][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.859218][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.878655][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.900683][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.911658][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.925245][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.938876][ T371] device veth0_vlan entered promiscuous mode [ 27.952738][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.967572][ T371] device veth1_macvtap entered promiscuous mode [ 27.985778][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.998385][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.031301][ T375] ================================================================== [ 28.042738][ T375] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 28.052039][ T375] Write of size 8 at addr ffff8881214e4550 by task syz.2.17/375 [ 28.061583][ T375] [ 28.066131][ T375] CPU: 1 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.075624][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 28.088294][ T375] Call Trace: [ 28.093560][ T375] [ 28.097540][ T375] __dump_stack+0x21/0x24 [ 28.103548][ T375] dump_stack_lvl+0x110/0x170 [ 28.110047][ T375] ? __cfi_dump_stack_lvl+0x8/0x8 [ 28.116037][ T375] ? mutex_lock+0x86/0x1b0 [ 28.121449][ T375] print_address_description+0x71/0x200 [ 28.129539][ T375] print_report+0x4a/0x60 [ 28.135123][ T375] kasan_report+0x122/0x150 [ 28.140504][ T375] ? mutex_lock+0x86/0x1b0 [ 28.145906][ T375] kasan_check_range+0x249/0x2a0 [ 28.152084][ T375] __kasan_check_write+0x14/0x20 [ 28.158222][ T375] mutex_lock+0x86/0x1b0 [ 28.164150][ T375] ? __cfi_mutex_lock+0x10/0x10 [ 28.169567][ T375] ? kfree+0x6f/0xf0 [ 28.173587][ T375] ? l2tp_session_put+0xaf/0x1a0 [ 28.179068][ T375] ? l2tp_session_delete+0x3df/0x4d0 [ 28.185882][ T375] pppol2tp_release+0x178/0x2b0 [ 28.191098][ T375] sock_close+0xc9/0x220 [ 28.195900][ T375] ? __cfi_sock_close+0x10/0x10 [ 28.201402][ T375] __fput+0x1fd/0x8f0 [ 28.206821][ T375] ____fput+0x15/0x20 [ 28.212314][ T375] task_work_run+0x1e1/0x250 [ 28.218325][ T375] ? __cfi_task_work_run+0x10/0x10 [ 28.224273][ T375] ? __cfi___close_range+0x10/0x10 [ 28.229572][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 28.234776][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 28.241076][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 28.247472][ T375] do_syscall_64+0x58/0xa0 [ 28.254248][ T375] ? clear_bhb_loop+0x30/0x80 [ 28.260144][ T375] ? clear_bhb_loop+0x30/0x80 [ 28.265746][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.272195][ T375] RIP: 0033:0x7fb162d9ce59 [ 28.277325][ T375] 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 [ 28.307526][ T375] RSP: 002b:00007ffc58c7ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 28.318310][ T375] RAX: 0000000000000000 RBX: 00007ffc58c7cf50 RCX: 00007fb162d9ce59 [ 28.331499][ T375] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 28.343964][ T375] RBP: 0000000000006d5b R08: 0000000000000001 R09: 0000000000000000 [ 28.355772][ T375] R10: 0000001b33220000 R11: 0000000000000246 R12: 0000000000000000 [ 28.369439][ T375] R13: 00007fb163015fac R14: 00007fb163015fa8 R15: 00007fb163015fa0 [ 28.379927][ T375] [ 28.384736][ T375] [ 28.387208][ T375] Allocated by task 375: [ 28.393712][ T375] kasan_set_track+0x4b/0x70 [ 28.399923][ T375] kasan_save_alloc_info+0x1f/0x30 [ 28.406803][ T375] __kasan_kmalloc+0x95/0xb0 [ 28.412113][ T375] __kmalloc+0xb4/0x1e0 [ 28.416892][ T375] l2tp_session_create+0x38/0xbd0 [ 28.424074][ T375] pppol2tp_connect+0xbf5/0x1640 [ 28.431524][ T375] __sys_connect+0x3da/0x460 [ 28.437513][ T375] __x64_sys_connect+0x7a/0x90 [ 28.443813][ T375] x64_sys_call+0x88d/0x9a0 [ 28.449405][ T375] do_syscall_64+0x4c/0xa0 [ 28.454187][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.462743][ T375] [ 28.465107][ T375] Freed by task 375: [ 28.469296][ T375] kasan_set_track+0x4b/0x70 [ 28.474576][ T375] kasan_save_free_info+0x2b/0x40 [ 28.480391][ T375] ____kasan_slab_free+0x132/0x180 [ 28.486704][ T375] __kasan_slab_free+0x11/0x20 [ 28.492252][ T375] slab_free_freelist_hook+0xc2/0x190 [ 28.498937][ T375] __kmem_cache_free+0xb7/0x1b0 [ 28.504445][ T375] kfree+0x6f/0xf0 [ 28.509055][ T375] l2tp_session_put+0xaf/0x1a0 [ 28.514199][ T375] l2tp_session_delete+0x3df/0x4d0 [ 28.520322][ T375] pppol2tp_release+0x169/0x2b0 [ 28.525458][ T375] sock_close+0xc9/0x220 [ 28.530615][ T375] __fput+0x1fd/0x8f0 [ 28.535525][ T375] ____fput+0x15/0x20 [ 28.540379][ T375] task_work_run+0x1e1/0x250 [ 28.546856][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 28.553469][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 28.562449][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 28.569776][ T375] do_syscall_64+0x58/0xa0 [ 28.576866][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.584628][ T375] [ 28.587259][ T375] The buggy address belongs to the object at ffff8881214e4400 [ 28.587259][ T375] which belongs to the cache kmalloc-512 of size 512 [ 28.605351][ T375] The buggy address is located 336 bytes inside of [ 28.605351][ T375] 512-byte region [ffff8881214e4400, ffff8881214e4600) [ 28.623110][ T375] [ 28.627087][ T375] The buggy address belongs to the physical page: [ 28.635168][ T375] page:ffffea0004853900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1214e4 [ 28.648952][ T375] head:ffffea0004853900 order:2 compound_mapcount:0 compound_pincount:0 [ 28.660818][ T375] flags: 0x4000000000010200(slab|head|zone=1) [ 28.667869][ T375] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 28.679306][ T375] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 28.689637][ T375] page dumped because: kasan: bad access detected [ 28.696991][ T375] page_owner tracks the page as allocated [ 28.705366][ T375] 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 371, tgid 371 (syz-executor), ts 28024150387, free_ts 27298458333 [ 28.739032][ T375] post_alloc_hook+0x1f5/0x210 [ 28.744885][ T375] prep_new_page+0x1c/0x110 [ 28.749495][ T375] get_page_from_freelist+0x2ca9/0x2d20 [ 28.756149][ T375] __alloc_pages+0x1fa/0x610 [ 28.761464][ T375] alloc_slab_page+0x6e/0xf0 [ 28.766996][ T375] new_slab+0x98/0x3e0 [ 28.772056][ T375] ___slab_alloc+0x70f/0xb70 [ 28.778674][ T375] __slab_alloc+0x5e/0xa0 [ 28.783813][ T375] __kmem_cache_alloc_node+0x204/0x2d0 [ 28.792669][ T375] kmalloc_trace+0x29/0xb0 [ 28.798147][ T375] find_css_set+0x937/0x15c0 [ 28.804032][ T375] cgroup_migrate_prepare_dst+0xc4/0xa00 [ 28.811417][ T375] cgroup_attach_task+0x298/0x520 [ 28.817202][ T375] __cgroup_procs_write+0x2b1/0x2e0 [ 28.825887][ T375] cgroup_procs_write+0x27/0x50 [ 28.832262][ T375] cgroup_file_write+0x2a2/0x590 [ 28.837882][ T375] page last free stack trace: [ 28.844048][ T375] free_unref_page_prepare+0x80c/0x820 [ 28.852678][ T375] free_unref_page+0x93/0x530 [ 28.859679][ T375] __free_pages+0x67/0x100 [ 28.865417][ T375] __vunmap+0xa3c/0xc00 [ 28.870955][ T375] vfree+0x61/0x90 [ 28.876936][ T375] kcov_close+0x2b/0x50 [ 28.881954][ T375] __fput+0x1fd/0x8f0 [ 28.886994][ T375] ____fput+0x15/0x20 [ 28.892696][ T375] task_work_run+0x1e1/0x250 [ 28.897742][ T375] do_exit+0xa7c/0x27c0 [ 28.902957][ T375] do_group_exit+0x21b/0x2e0 [ 28.909559][ T375] get_signal+0x1382/0x14f0 [ 28.915306][ T375] arch_do_signal_or_restart+0xd1/0x11c0 [ 28.921616][ T375] exit_to_user_mode_loop+0x7a/0xb0 [ 28.928190][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 28.934611][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 28.940249][ T375] [ 28.943172][ T375] Memory state around the buggy address: [ 28.950201][ T375] ffff8881214e4400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.960119][ T375] ffff8881214e4480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.969518][ T375] >ffff8881214e4500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.979881][ T375] ^ [ 28.988021][ T375] ffff8881214e4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.999181][ T375] ffff8881214e4600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.009698][ T375] ================================================================== [ 29.026771][ T28] kauditd_printk_skb: 34 callbacks suppressed [ 29.026785][ T28] audit: type=1400 audit(1781922563.234:108): avc: denied { read } for pid=85 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 29.028672][ T375] Disabling lock debugging due to kernel taint [ 29.041886][ T28] audit: type=1400 audit(1781922563.234:109): avc: denied { search } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.116619][ T28] audit: type=1400 audit(1781922563.234:110): avc: denied { write } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.143530][ T28] audit: type=1400 audit(1781922563.234:111): avc: denied { add_name } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.170940][ T28] audit: type=1400 audit(1781922563.234:112): avc: denied { create } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 29.195656][ T28] audit: type=1400 audit(1781922563.234:113): avc: denied { append open } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 29.229691][ T28] audit: type=1400 audit(1781922563.234:114