Warning: Permanently added '10.128.1.3' (ED25519) to the list of known hosts. 2026/06/11 05:38:15 parsed 1 programs [ 26.229721][ T28] audit: type=1400 audit(1781156295.044:64): 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 [ 26.250594][ T28] audit: type=1400 audit(1781156295.044:65): 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 [ 27.365822][ T28] audit: type=1400 audit(1781156296.184:66): avc: denied { mounton } for pid=303 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 [ 27.369037][ T303] cgroup: Unknown subsys name 'net' [ 27.388523][ T28] audit: type=1400 audit(1781156296.184:67): avc: denied { mount } for pid=303 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 [ 27.415947][ T28] audit: type=1400 audit(1781156296.214:68): avc: denied { unmount } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 27.416328][ T303] cgroup: Unknown subsys name 'devices' [ 27.557028][ T303] cgroup: Unknown subsys name 'hugetlb' [ 27.562661][ T303] cgroup: Unknown subsys name 'rlimit' [ 27.674637][ T28] audit: type=1400 audit(1781156296.494:69): avc: denied { setattr } for pid=303 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 [ 27.698278][ T28] audit: type=1400 audit(1781156296.494:70): avc: denied { create } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.718710][ T28] audit: type=1400 audit(1781156296.494:71): avc: denied { write } for pid=303 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.739053][ T28] audit: type=1400 audit(1781156296.494:72): avc: denied { read } for pid=303 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 [ 27.759391][ T28] audit: type=1400 audit(1781156296.494:73): avc: denied { mounton } for pid=303 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 [ 27.765398][ T306] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 27.823717][ T303] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 28.503649][ T308] request_module fs-gadgetfs succeeded, but still no fs? [ 29.157397][ T351] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.164505][ T351] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.171933][ T351] device bridge_slave_0 entered promiscuous mode [ 29.179016][ T351] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.186089][ T351] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.193472][ T351] device bridge_slave_1 entered promiscuous mode [ 29.240063][ T351] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.247168][ T351] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.254592][ T351] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.261639][ T351] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.281618][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.289359][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.296834][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.306616][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.315114][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.322157][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.331123][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.339422][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.346484][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.359113][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.368363][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.382711][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.394118][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.402357][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.410071][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.418413][ T351] device veth0_vlan entered promiscuous mode [ 29.428889][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.438057][ T351] device veth1_macvtap entered promiscuous mode [ 29.447657][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.458046][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/06/11 05:38:18 executed programs: 0 [ 29.851395][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.858550][ T370] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.866174][ T370] device bridge_slave_0 entered promiscuous mode [ 29.873222][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.880322][ T370] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.888712][ T370] device bridge_slave_1 entered promiscuous mode [ 29.959890][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 29.967429][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.976382][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 29.985135][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.993329][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 30.000398][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 30.015979][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 30.024636][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 30.033000][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 30.041215][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 30.048274][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 30.060279][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 30.074914][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 30.090930][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 30.103438][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 30.111658][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 30.119354][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 30.128393][ T370] device veth0_vlan entered promiscuous mode [ 30.139511][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 30.148670][ T370] device veth1_macvtap entered promiscuous mode [ 30.158011][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 30.168349][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 30.193567][ T375] ================================================================== [ 30.201682][ T375] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 30.208492][ T375] Write of size 8 at addr ffff888114e45950 by task syz.2.17/375 [ 30.216130][ T375] [ 30.218461][ T375] CPU: 1 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0 [ 30.225566][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 30.235638][ T375] Call Trace: [ 30.238934][ T375] [ 30.241864][ T375] __dump_stack+0x21/0x24 [ 30.246198][ T375] dump_stack_lvl+0x110/0x170 [ 30.250879][ T375] ? __cfi_dump_stack_lvl+0x8/0x8 [ 30.255904][ T375] ? mutex_lock+0x86/0x1b0 [ 30.260328][ T375] print_address_description+0x71/0x200 [ 30.265868][ T375] print_report+0x4a/0x60 [ 30.270194][ T375] kasan_report+0x122/0x150 [ 30.274708][ T375] ? mutex_lock+0x86/0x1b0 [ 30.279125][ T375] kasan_check_range+0x249/0x2a0 [ 30.284063][ T375] __kasan_check_write+0x14/0x20 [ 30.289005][ T375] mutex_lock+0x86/0x1b0 [ 30.293263][ T375] ? __cfi_mutex_lock+0x10/0x10 [ 30.298120][ T375] ? l2tp_session_put+0xaf/0x1a0 [ 30.303077][ T375] ? l2tp_session_delete+0x3f0/0x4e0 [ 30.308367][ T375] pppol2tp_release+0x194/0x2d0 [ 30.313221][ T375] sock_close+0xf1/0x290 [ 30.317474][ T375] ? __cfi_sock_close+0x10/0x10 [ 30.322329][ T375] __fput+0x1fc/0x8f0 [ 30.326313][ T375] ____fput+0x15/0x20 [ 30.330298][ T375] task_work_run+0x1e1/0x250 [ 30.334902][ T375] ? __cfi_task_work_run+0x10/0x10 [ 30.340033][ T375] ? __cfi___close_range+0x10/0x10 [ 30.345154][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 30.350354][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 30.355816][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 30.361272][ T375] do_syscall_64+0x58/0xa0 [ 30.365686][ T375] ? clear_bhb_loop+0x30/0x80 [ 30.370369][ T375] ? clear_bhb_loop+0x30/0x80 [ 30.375039][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 30.380934][ T375] RIP: 0033:0x7f699859ce59 [ 30.385360][ 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 [ 30.404984][ T375] RSP: 002b:00007ffca497e6d8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 30.413406][ T375] RAX: 0000000000000000 RBX: 00007ffca497e7c0 RCX: 00007f699859ce59 [ 30.421377][ T375] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 30.429342][ T375] RBP: 00000000000075e1 R08: 0000000000000001 R09: 0000000000000000 [ 30.437319][ T375] R10: 0000001b33120000 R11: 0000000000000246 R12: 0000000000000000 [ 30.445304][ T375] R13: 00007f6998815fac R14: 00007f6998815fa8 R15: 00007f6998815fa0 [ 30.453294][ T375] [ 30.456329][ T375] [ 30.458657][ T375] Allocated by task 375: [ 30.462902][ T375] kasan_set_track+0x4b/0x70 [ 30.467521][ T375] kasan_save_alloc_info+0x25/0x30 [ 30.472653][ T375] __kasan_kmalloc+0x95/0xb0 [ 30.477257][ T375] __kmalloc+0xb1/0x1e0 [ 30.481433][ T375] l2tp_session_create+0x38/0xbe0 [ 30.486465][ T375] pppol2tp_connect+0xbef/0x1620 [ 30.491411][ T375] __sys_connect+0x3da/0x460 [ 30.496011][ T375] __x64_sys_connect+0x7a/0x90 [ 30.500789][ T375] x64_sys_call+0x88d/0x9a0 [ 30.505307][ T375] do_syscall_64+0x4c/0xa0 [ 30.509744][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 30.515652][ T375] [ 30.517981][ T375] Freed by task 375: [ 30.521876][ T375] kasan_set_track+0x4b/0x70 [ 30.526479][ T375] kasan_save_free_info+0x31/0x50 [ 30.531511][ T375] ____kasan_slab_free+0x132/0x180 [ 30.536726][ T375] __kasan_slab_free+0x11/0x20 [ 30.541524][ T375] slab_free_freelist_hook+0xc2/0x190 [ 30.546927][ T375] __kmem_cache_free+0xb7/0x1b0 [ 30.551807][ T375] kfree+0x6f/0xf0 [ 30.555548][ T375] l2tp_session_put+0xaf/0x1a0 [ 30.560329][ T375] l2tp_session_delete+0x3f0/0x4e0 [ 30.565464][ T375] pppol2tp_release+0x185/0x2d0 [ 30.570349][ T375] sock_close+0xf1/0x290 [ 30.574610][ T375] __fput+0x1fc/0x8f0 [ 30.578614][ T375] ____fput+0x15/0x20 [ 30.582623][ T375] task_work_run+0x1e1/0x250 [ 30.587228][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 30.592437][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 30.597999][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 30.603465][ T375] do_syscall_64+0x58/0xa0 [ 30.607977][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 30.613891][ T375] [ 30.616235][ T375] The buggy address belongs to the object at ffff888114e45800 [ 30.616235][ T375] which belongs to the cache kmalloc-512 of size 512 [ 30.630304][ T375] The buggy address is located 336 bytes inside of [ 30.630304][ T375] 512-byte region [ffff888114e45800, ffff888114e45a00) [ 30.643598][ T375] [ 30.645932][ T375] The buggy address belongs to the physical page: [ 30.652359][ T375] page:ffffea0004539100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114e44 [ 30.662622][ T375] head:ffffea0004539100 order:2 compound_mapcount:0 compound_pincount:0 [ 30.670956][ T375] flags: 0x4000000000010200(slab|head|zone=1) [ 30.677046][ T375] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 30.685638][ T375] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 30.694224][ T375] page dumped because: kasan: bad access detected [ 30.700646][ T375] page_owner tracks the page as allocated [ 30.706360][ T375] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 349, tgid 349 (kworker/0:2), ts 30181538782, free_ts 30070198039 [ 30.728247][ T375] post_alloc_hook+0x1f5/0x210 [ 30.733027][ T375] prep_new_page+0x1c/0x110 [ 30.737549][ T375] get_page_from_freelist+0x2d12/0x2d80 [ 30.743134][ T375] __alloc_pages+0x1fa/0x610 [ 30.747744][ T375] alloc_slab_page+0x6e/0xf0 [ 30.752340][ T375] new_slab+0x98/0x3d0 [ 30.756419][ T375] ___slab_alloc+0x6bd/0xb20 [ 30.761023][ T375] __slab_alloc+0x5e/0xa0 [ 30.765365][ T375] __kmem_cache_alloc_node+0x203/0x2c0 [ 30.770860][ T375] __kmalloc_node_track_caller+0xa0/0x1e0 [ 30.776592][ T375] __alloc_skb+0x236/0x4b0 [ 30.781015][ T375] __ipv6_ifa_notify+0x200/0xe80 [ 30.785958][ T375] addrconf_dad_completed+0x190/0xe80 [ 30.791340][ T375] addrconf_dad_work+0xc41/0x14d0 [ 30.796376][ T375] process_one_work+0x71f/0xc40 [ 30.801234][ T375] worker_thread+0xa29/0x11e0 [ 30.805921][ T375] page last free stack trace: [ 30.810597][ T375] free_unref_page_prepare+0x7f8/0x800 [ 30.816069][ T375] free_unref_page+0x95/0x540 [ 30.820763][ T375] __free_pages+0x67/0x100 [ 30.825193][ T375] __free_slab+0xca/0x1a0 [ 30.829526][ T375] __unfreeze_partials+0x160/0x190 [ 30.834650][ T375] put_cpu_partial+0xa9/0x100 [ 30.839346][ T375] __slab_free+0x1c4/0x280 [ 30.843784][ T375] ___cache_free+0xbf/0xd0 [ 30.848215][ T375] qlist_free_all+0xc6/0x140 [ 30.852819][ T375] kasan_quarantine_reduce+0x14a/0x170 [ 30.858288][ T375] __kasan_slab_alloc+0x24/0x80 [ 30.863152][ T375] slab_post_alloc_hook+0x4f/0x2d0 [ 30.868289][ T375] __kmem_cache_alloc_node+0x192/0x2c0 [ 30.873772][ T375] __kmalloc+0xa1/0x1e0 [ 30.877935][ T375] fib6_info_alloc+0x34/0xe0 [ 30.882539][ T375] ip6_route_info_create+0x526/0x1510 [ 30.887941][ T375] [ 30.890271][ T375] Memory state around the buggy address: [ 30.895910][ T375] ffff888114e45800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.903986][ T375] ffff888114e45880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.912059][ T375] >ffff888114e45900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.920122][ T375] ^ [ 30.926794][ T375] ffff888114e45980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.934859][ T375] ffff888114e45a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.942922][ T375] ================================================================== [ 30.955446][ T375] Disabling lock debugging due to kernel taint