Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. 2026/06/11 04:46:08 parsed 1 programs [ 23.503576][ T28] audit: type=1400 audit(1781153168.358:64): avc: denied { node_bind } for pid=294 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 23.524545][ T28] audit: type=1400 audit(1781153168.358:65): avc: denied { module_request } for pid=294 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 [ 24.323717][ T28] audit: type=1400 audit(1781153169.178:66): avc: denied { mounton } for pid=300 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 [ 24.324788][ T300] cgroup: Unknown subsys name 'net' [ 24.353416][ T300] cgroup: Unknown subsys name 'devices' [ 24.359515][ T28] audit: type=1400 audit(1781153169.178:67): avc: denied { mount } for pid=300 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 [ 24.381831][ T28] audit: type=1400 audit(1781153169.218:68): avc: denied { unmount } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.499392][ T300] cgroup: Unknown subsys name 'hugetlb' [ 24.505083][ T300] cgroup: Unknown subsys name 'rlimit' [ 24.642433][ T28] audit: type=1400 audit(1781153169.498:69): avc: denied { setattr } for pid=300 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 [ 24.665612][ T28] audit: type=1400 audit(1781153169.498:70): avc: denied { create } for pid=300 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 [ 24.676831][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 24.686200][ T28] audit: type=1400 audit(1781153169.498:71): avc: denied { write } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.714808][ T28] audit: type=1400 audit(1781153169.498:72): avc: denied { read } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.732411][ T300] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 24.735263][ T28] audit: type=1400 audit(1781153169.498:73): avc: denied { mounton } for pid=300 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 [ 25.563398][ T309] request_module fs-gadgetfs succeeded, but still no fs? [ 26.003203][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.010814][ T346] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.018215][ T346] device bridge_slave_0 entered promiscuous mode [ 26.025167][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.032271][ T346] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.039617][ T346] device bridge_slave_1 entered promiscuous mode [ 26.078285][ T346] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.085426][ T346] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.092738][ T346] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.099879][ T346] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.118466][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.125742][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.133113][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 26.140922][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.149890][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.158750][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.165807][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.174405][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.182689][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.189745][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.204667][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.214056][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.227636][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.244676][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.252944][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.260521][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.268695][ T346] device veth0_vlan entered promiscuous mode [ 26.278584][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.287997][ T346] device veth1_macvtap entered promiscuous mode [ 26.301086][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.311050][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.341639][ T346] syz-executor (346) used greatest stack depth: 21280 bytes left 2026/06/11 04:46:11 executed programs: 0 [ 26.714224][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.721548][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.729280][ T370] device bridge_slave_0 entered promiscuous mode [ 26.736296][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.743371][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.750676][ T370] device bridge_slave_1 entered promiscuous mode [ 26.792868][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.799940][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.807209][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.814264][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.832795][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.840632][ T331] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.848191][ T331] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.862518][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.870714][ T331] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.877750][ T331] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.886491][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.894889][ T331] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.901943][ T331] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.918713][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.927817][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.941036][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.952319][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.960553][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.968719][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.980722][ T370] device veth0_vlan entered promiscuous mode [ 26.991237][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.000408][ T370] device veth1_macvtap entered promiscuous mode [ 27.009569][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 27.017927][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.027019][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 27.036133][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.064631][ T375] ================================================================== [ 27.072774][ T375] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 27.079548][ T375] Write of size 8 at addr ffff888111ff6150 by task syz.2.17/375 [ 27.087260][ T375] [ 27.089606][ T375] CPU: 0 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0 [ 27.096750][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 27.106814][ T375] Call Trace: [ 27.110096][ T375] [ 27.113031][ T375] __dump_stack+0x21/0x24 [ 27.117373][ T375] dump_stack_lvl+0x110/0x170 [ 27.122053][ T375] ? __cfi_dump_stack_lvl+0x8/0x8 [ 27.127083][ T375] ? mutex_lock+0x86/0x1b0 [ 27.131500][ T375] print_address_description+0x71/0x200 [ 27.137056][ T375] print_report+0x4a/0x60 [ 27.141377][ T375] kasan_report+0x122/0x150 [ 27.145965][ T375] ? mutex_lock+0x86/0x1b0 [ 27.150371][ T375] kasan_check_range+0x249/0x2a0 [ 27.155307][ T375] __kasan_check_write+0x14/0x20 [ 27.160246][ T375] mutex_lock+0x86/0x1b0 [ 27.164512][ T375] ? __cfi_mutex_lock+0x10/0x10 [ 27.169357][ T375] ? l2tp_session_put+0xaf/0x1a0 [ 27.174287][ T375] ? l2tp_session_delete+0x3f0/0x4e0 [ 27.179561][ T375] pppol2tp_release+0x194/0x2d0 [ 27.184401][ T375] sock_close+0xf1/0x290 [ 27.188633][ T375] ? __cfi_sock_close+0x10/0x10 [ 27.193473][ T375] __fput+0x1fc/0x8f0 [ 27.197443][ T375] ____fput+0x15/0x20 [ 27.201427][ T375] task_work_run+0x1e1/0x250 [ 27.206002][ T375] ? __cfi_task_work_run+0x10/0x10 [ 27.211100][ T375] ? __cfi___close_range+0x10/0x10 [ 27.216203][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 27.221386][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 27.226831][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 27.232275][ T375] do_syscall_64+0x58/0xa0 [ 27.236675][ T375] ? clear_bhb_loop+0x30/0x80 [ 27.241347][ T375] ? clear_bhb_loop+0x30/0x80 [ 27.246008][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.251889][ T375] RIP: 0033:0x7f8b2d79ce59 [ 27.256293][ 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 [ 27.276060][ T375] RSP: 002b:00007ffea137b878 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 27.284463][ T375] RAX: 0000000000000000 RBX: 00007ffea137b960 RCX: 00007f8b2d79ce59 [ 27.292440][ T375] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 27.300398][ T375] RBP: 000000000000699c R08: 0000000000000001 R09: 0000000000000000 [ 27.308358][ T375] R10: 0000001b33120000 R11: 0000000000000246 R12: 0000000000000000 [ 27.316333][ T375] R13: 00007f8b2da15fac R14: 00007f8b2da15fa8 R15: 00007f8b2da15fa0 [ 27.324309][ T375] [ 27.327321][ T375] [ 27.329630][ T375] Allocated by task 375: [ 27.333850][ T375] kasan_set_track+0x4b/0x70 [ 27.338521][ T375] kasan_save_alloc_info+0x25/0x30 [ 27.343626][ T375] __kasan_kmalloc+0x95/0xb0 [ 27.348208][ T375] __kmalloc+0xb1/0x1e0 [ 27.352359][ T375] l2tp_session_create+0x38/0xbe0 [ 27.357387][ T375] pppol2tp_connect+0xbef/0x1620 [ 27.362337][ T375] __sys_connect+0x3da/0x460 [ 27.366933][ T375] __x64_sys_connect+0x7a/0x90 [ 27.371695][ T375] x64_sys_call+0x88d/0x9a0 [ 27.376198][ T375] do_syscall_64+0x4c/0xa0 [ 27.380610][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.386501][ T375] [ 27.388819][ T375] Freed by task 375: [ 27.392701][ T375] kasan_set_track+0x4b/0x70 [ 27.397373][ T375] kasan_save_free_info+0x31/0x50 [ 27.402392][ T375] ____kasan_slab_free+0x132/0x180 [ 27.407505][ T375] __kasan_slab_free+0x11/0x20 [ 27.412272][ T375] slab_free_freelist_hook+0xc2/0x190 [ 27.417638][ T375] __kmem_cache_free+0xb7/0x1b0 [ 27.422487][ T375] kfree+0x6f/0xf0 [ 27.426200][ T375] l2tp_session_put+0xaf/0x1a0 [ 27.430954][ T375] l2tp_session_delete+0x3f0/0x4e0 [ 27.436067][ T375] pppol2tp_release+0x185/0x2d0 [ 27.440915][ T375] sock_close+0xf1/0x290 [ 27.445156][ T375] __fput+0x1fc/0x8f0 [ 27.449136][ T375] ____fput+0x15/0x20 [ 27.453115][ T375] task_work_run+0x1e1/0x250 [ 27.457701][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 27.462893][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 27.468344][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 27.473890][ T375] do_syscall_64+0x58/0xa0 [ 27.478305][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.484201][ T375] [ 27.486515][ T375] The buggy address belongs to the object at ffff888111ff6000 [ 27.486515][ T375] which belongs to the cache kmalloc-512 of size 512 [ 27.500643][ T375] The buggy address is located 336 bytes inside of [ 27.500643][ T375] 512-byte region [ffff888111ff6000, ffff888111ff6200) [ 27.513920][ T375] [ 27.516245][ T375] The buggy address belongs to the physical page: [ 27.522647][ T375] page:ffffea000447fd00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111ff4 [ 27.532877][ T375] head:ffffea000447fd00 order:2 compound_mapcount:0 compound_pincount:0 [ 27.541198][ T375] flags: 0x4000000000010200(slab|head|zone=1) [ 27.547266][ T375] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 27.555847][ T375] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.564435][ T375] page dumped because: kasan: bad access detected [ 27.570833][ T375] page_owner tracks the page as allocated [ 27.576539][ 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 370, tgid 370 (syz-executor), ts 27058489462, free_ts 25972300204 [ 27.599117][ T375] post_alloc_hook+0x1f5/0x210 [ 27.603905][ T375] prep_new_page+0x1c/0x110 [ 27.608464][ T375] get_page_from_freelist+0x2d12/0x2d80 [ 27.614012][ T375] __alloc_pages+0x1fa/0x610 [ 27.618607][ T375] alloc_slab_page+0x6e/0xf0 [ 27.623193][ T375] new_slab+0x98/0x3d0 [ 27.627260][ T375] ___slab_alloc+0x6bd/0xb20 [ 27.631877][ T375] __slab_alloc+0x5e/0xa0 [ 27.636221][ T375] __kmem_cache_alloc_node+0x203/0x2c0 [ 27.641784][ T375] kmalloc_trace+0x29/0xb0 [ 27.646194][ T375] blkcg_css_alloc+0x65/0xc40 [ 27.650870][ T375] cgroup_apply_control_enable+0x392/0xe10 [ 27.656671][ T375] cgroup_mkdir+0x1167/0x13c0 [ 27.661345][ T375] kernfs_iop_mkdir+0x1bb/0x2c0 [ 27.666193][ T375] vfs_mkdir+0x39c/0x580 [ 27.670433][ T375] do_mkdirat+0x171/0x4c0 [ 27.674760][ T375] page last free stack trace: [ 27.679424][ T375] free_unref_page_prepare+0x7f8/0x800 [ 27.684884][ T375] free_unref_page+0x95/0x540 [ 27.689560][ T375] __free_pages+0x67/0x100 [ 27.693973][ T375] __free_slab+0xca/0x1a0 [ 27.698296][ T375] __unfreeze_partials+0x160/0x190 [ 27.703402][ T375] put_cpu_partial+0xa9/0x100 [ 27.708082][ T375] __slab_free+0x1c4/0x280 [ 27.712504][ T375] ___cache_free+0xbf/0xd0 [ 27.716922][ T375] qlist_free_all+0xc6/0x140 [ 27.721510][ T375] kasan_quarantine_reduce+0x14a/0x170 [ 27.726984][ T375] __kasan_slab_alloc+0x24/0x80 [ 27.731832][ T375] slab_post_alloc_hook+0x4f/0x2d0 [ 27.736966][ T375] kmem_cache_alloc+0x16e/0x330 [ 27.741912][ T375] getname_flags+0xb9/0x500 [ 27.746410][ T375] user_path_at_empty+0x30/0x1c0 [ 27.751341][ T375] do_readlinkat+0xd9/0x490 [ 27.755839][ T375] [ 27.758160][ T375] Memory state around the buggy address: [ 27.763786][ T375] ffff888111ff6000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.771837][ T375] ffff888111ff6080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.779901][ T375] >ffff888111ff6100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.787954][ T375] ^ [ 27.794616][ T375] ffff888111ff6180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.802674][ T375] ffff888111ff6200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.810723][ T375] ================================================================== [ 27.823893][ T375] Disabling lock debugging due to kernel taint