Warning: Permanently added '10.128.0.30' (ED25519) to the list of known hosts. 2026/06/11 05:08:19 parsed 1 programs [ 25.690954][ T28] audit: type=1400 audit(1781154499.638:64): 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 [ 25.711797][ T28] audit: type=1400 audit(1781154499.638:65): 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 [ 26.488167][ T28] audit: type=1400 audit(1781154500.438:66): 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 [ 26.489159][ T302] cgroup: Unknown subsys name 'net' [ 26.510849][ T28] audit: type=1400 audit(1781154500.438:67): 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 [ 26.538269][ T28] audit: type=1400 audit(1781154500.468:68): 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 [ 26.538449][ T302] cgroup: Unknown subsys name 'devices' [ 26.678438][ T302] cgroup: Unknown subsys name 'hugetlb' [ 26.684048][ T302] cgroup: Unknown subsys name 'rlimit' [ 26.821798][ T28] audit: type=1400 audit(1781154500.768:69): 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 [ 26.845085][ T28] audit: type=1400 audit(1781154500.768:70): 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 [ 26.865751][ T28] audit: type=1400 audit(1781154500.768:71): 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 [ 26.875114][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.886228][ T28] audit: type=1400 audit(1781154500.768:72): 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 Setting up swapspace version 1, size = 127995904 bytes [ 26.914971][ T28] audit: type=1400 audit(1781154500.768:73): 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 [ 26.945453][ T302] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.698958][ T308] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.706040][ T308] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.713872][ T308] device bridge_slave_0 entered promiscuous mode [ 27.721251][ T308] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.728489][ T308] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.736110][ T308] device bridge_slave_1 entered promiscuous mode [ 27.778794][ T308] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.785876][ T308] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.793264][ T308] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.800303][ T308] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.818544][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.825786][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.833166][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.841041][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.850326][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.858692][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.865815][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.874710][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.882970][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.890019][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.901562][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.910795][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.924058][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.934959][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.943303][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.950999][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.959049][ T308] device veth0_vlan entered promiscuous mode [ 27.969455][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.978482][ T308] device veth1_macvtap entered promiscuous mode [ 27.987624][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.997999][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.015518][ T308] request_module fs-gadgetfs succeeded, but still no fs? [ 28.507716][ T8] device bridge_slave_1 left promiscuous mode [ 28.513910][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.521529][ T8] device bridge_slave_0 left promiscuous mode [ 28.527935][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.535792][ T8] device veth1_macvtap left promiscuous mode [ 28.541864][ T8] device veth0_vlan left promiscuous mode 2026/06/11 05:08:22 executed programs: 0 [ 29.001555][ T369] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.008643][ T369] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.015944][ T369] device bridge_slave_0 entered promiscuous mode [ 29.022963][ T369] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.030020][ T369] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.037624][ T369] device bridge_slave_1 entered promiscuous mode [ 29.074855][ T369] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.081912][ T369] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.089184][ T369] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.096211][ T369] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.114594][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.122110][ T43] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.129452][ T43] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.138934][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.147207][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.154228][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.162704][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.171029][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.178072][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.190400][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.199790][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.213681][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.225042][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.233391][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.241153][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.249412][ T369] device veth0_vlan entered promiscuous mode [ 29.259597][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.274233][ T369] device veth1_macvtap entered promiscuous mode [ 29.284096][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.294324][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 29.326879][ T375] ================================================================== [ 29.335006][ T375] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 29.341767][ T375] Write of size 8 at addr ffff88812186e550 by task syz.2.17/375 [ 29.349385][ T375] [ 29.351693][ T375] CPU: 0 PID: 375 Comm: syz.2.17 Not tainted syzkaller #0 [ 29.358788][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 29.368830][ T375] Call Trace: [ 29.372099][ T375] [ 29.375019][ T375] __dump_stack+0x21/0x24 [ 29.379341][ T375] dump_stack_lvl+0x110/0x170 [ 29.384007][ T375] ? __cfi_dump_stack_lvl+0x8/0x8 [ 29.389019][ T375] ? mutex_lock+0x86/0x1b0 [ 29.393438][ T375] print_address_description+0x71/0x200 [ 29.398978][ T375] print_report+0x4a/0x60 [ 29.403319][ T375] kasan_report+0x122/0x150 [ 29.407898][ T375] ? mutex_lock+0x86/0x1b0 [ 29.412321][ T375] kasan_check_range+0x249/0x2a0 [ 29.417266][ T375] __kasan_check_write+0x14/0x20 [ 29.422200][ T375] mutex_lock+0x86/0x1b0 [ 29.426431][ T375] ? __cfi_mutex_lock+0x10/0x10 [ 29.431270][ T375] ? l2tp_session_put+0xaf/0x1a0 [ 29.436195][ T375] ? l2tp_session_delete+0x3f0/0x4e0 [ 29.441471][ T375] pppol2tp_release+0x194/0x2d0 [ 29.446334][ T375] sock_close+0xf1/0x290 [ 29.450567][ T375] ? __cfi_sock_close+0x10/0x10 [ 29.455406][ T375] __fput+0x1fc/0x8f0 [ 29.459375][ T375] ____fput+0x15/0x20 [ 29.463343][ T375] task_work_run+0x1e1/0x250 [ 29.467920][ T375] ? __cfi_task_work_run+0x10/0x10 [ 29.473017][ T375] ? __cfi___close_range+0x10/0x10 [ 29.478114][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 29.483383][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 29.488856][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 29.494317][ T375] do_syscall_64+0x58/0xa0 [ 29.498726][ T375] ? clear_bhb_loop+0x30/0x80 [ 29.503406][ T375] ? clear_bhb_loop+0x30/0x80 [ 29.508084][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.513972][ T375] RIP: 0033:0x7fe492f9ce59 [ 29.518377][ 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 [ 29.538061][ T375] RSP: 002b:00007ffebbe36668 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 29.546493][ T375] RAX: 0000000000000000 RBX: 00007ffebbe36750 RCX: 00007fe492f9ce59 [ 29.554463][ T375] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 29.562540][ T375] RBP: 0000000000007272 R08: 0000000000000001 R09: 0000000000000000 [ 29.570503][ T375] R10: 0000001b33020000 R11: 0000000000000246 R12: 0000000000000000 [ 29.578463][ T375] R13: 00007fe493215fac R14: 00007fe493215fa8 R15: 00007fe493215fa0 [ 29.586424][ T375] [ 29.589437][ T375] [ 29.591763][ T375] Allocated by task 375: [ 29.595997][ T375] kasan_set_track+0x4b/0x70 [ 29.600592][ T375] kasan_save_alloc_info+0x25/0x30 [ 29.605699][ T375] __kasan_kmalloc+0x95/0xb0 [ 29.610290][ T375] __kmalloc+0xb1/0x1e0 [ 29.614449][ T375] l2tp_session_create+0x38/0xbe0 [ 29.619584][ T375] pppol2tp_connect+0xbef/0x1620 [ 29.624521][ T375] __sys_connect+0x3da/0x460 [ 29.629104][ T375] __x64_sys_connect+0x7a/0x90 [ 29.633868][ T375] x64_sys_call+0x88d/0x9a0 [ 29.638371][ T375] do_syscall_64+0x4c/0xa0 [ 29.642786][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.648684][ T375] [ 29.651005][ T375] Freed by task 375: [ 29.654889][ T375] kasan_set_track+0x4b/0x70 [ 29.659474][ T375] kasan_save_free_info+0x31/0x50 [ 29.664489][ T375] ____kasan_slab_free+0x132/0x180 [ 29.669599][ T375] __kasan_slab_free+0x11/0x20 [ 29.674361][ T375] slab_free_freelist_hook+0xc2/0x190 [ 29.679730][ T375] __kmem_cache_free+0xb7/0x1b0 [ 29.684590][ T375] kfree+0x6f/0xf0 [ 29.688306][ T375] l2tp_session_put+0xaf/0x1a0 [ 29.693065][ T375] l2tp_session_delete+0x3f0/0x4e0 [ 29.698174][ T375] pppol2tp_release+0x185/0x2d0 [ 29.703020][ T375] sock_close+0xf1/0x290 [ 29.707275][ T375] __fput+0x1fc/0x8f0 [ 29.711342][ T375] ____fput+0x15/0x20 [ 29.715334][ T375] task_work_run+0x1e1/0x250 [ 29.720182][ T375] exit_to_user_mode_loop+0x9b/0xb0 [ 29.725378][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 29.730841][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 29.736310][ T375] do_syscall_64+0x58/0xa0 [ 29.740731][ T375] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.746642][ T375] [ 29.748973][ T375] The buggy address belongs to the object at ffff88812186e400 [ 29.748973][ T375] which belongs to the cache kmalloc-512 of size 512 [ 29.763046][ T375] The buggy address is located 336 bytes inside of [ 29.763046][ T375] 512-byte region [ffff88812186e400, ffff88812186e600) [ 29.776329][ T375] [ 29.778652][ T375] The buggy address belongs to the physical page: [ 29.785078][ T375] page:ffffea0004861b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12186c [ 29.795337][ T375] head:ffffea0004861b00 order:2 compound_mapcount:0 compound_pincount:0 [ 29.803657][ T375] flags: 0x4000000000010200(slab|head|zone=1) [ 29.809730][ T375] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 29.818312][ T375] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 29.826885][ T375] page dumped because: kasan: bad access detected [ 29.833291][ T375] page_owner tracks the page as allocated [ 29.839050][ T375] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 369, tgid 369 (syz-executor), ts 29315550296, free_ts 28668720379 [ 29.859539][ T375] post_alloc_hook+0x1f5/0x210 [ 29.864310][ T375] prep_new_page+0x1c/0x110 [ 29.868814][ T375] get_page_from_freelist+0x2d12/0x2d80 [ 29.874358][ T375] __alloc_pages+0x1fa/0x610 [ 29.878950][ T375] alloc_slab_page+0x6e/0xf0 [ 29.883538][ T375] new_slab+0x98/0x3d0 [ 29.887599][ T375] ___slab_alloc+0x6bd/0xb20 [ 29.892188][ T375] __slab_alloc+0x5e/0xa0 [ 29.896601][ T375] __kmem_cache_alloc_node+0x203/0x2c0 [ 29.902057][ T375] __kmalloc+0xa1/0x1e0 [ 29.906209][ T375] fib6_info_alloc+0x34/0xe0 [ 29.910794][ T375] ip6_route_info_create+0x526/0x1510 [ 29.916165][ T375] addrconf_f6i_alloc+0x19c/0x3f0 [ 29.921183][ T375] addrconf_permanent_addr+0x248/0x960 [ 29.926636][ T375] addrconf_notify+0x7cf/0xe40 [ 29.931397][ T375] raw_notifier_call_chain+0xa1/0x110 [ 29.936765][ T375] page last free stack trace: [ 29.941433][ T375] free_unref_page_prepare+0x7f8/0x800 [ 29.946894][ T375] free_unref_page+0x95/0x540 [ 29.951567][ T375] __free_pages+0x67/0x100 [ 29.955980][ T375] __vunmap+0x9c0/0xb80 [ 29.960132][ T375] vfree+0x61/0x90 [ 29.963847][ T375] kcov_close+0x2b/0x50 [ 29.967996][ T375] __fput+0x1fc/0x8f0 [ 29.971973][ T375] ____fput+0x15/0x20 [ 29.976044][ T375] task_work_run+0x1e1/0x250 [ 29.980635][ T375] do_exit+0xa35/0x2660 [ 29.984789][ T375] do_group_exit+0x225/0x2e0 [ 29.989385][ T375] get_signal+0x13b5/0x1520 [ 29.993892][ T375] arch_do_signal_or_restart+0xd1/0x1140 [ 29.999520][ T375] exit_to_user_mode_loop+0x7a/0xb0 [ 30.004755][ T375] exit_to_user_mode_prepare+0x87/0xd0 [ 30.010215][ T375] syscall_exit_to_user_mode+0x1a/0x30 [ 30.015680][ T375] [ 30.017997][ T375] Memory state around the buggy address: [ 30.023618][ T375] ffff88812186e400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.031681][ T375] ffff88812186e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.039734][ T375] >ffff88812186e500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.047789][ T375] ^ [ 30.054452][ T375] ffff88812186e580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.062506][ T375] ffff88812186e600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.070729][ T375] ================================================================== [ 30.079368][ T375] Disabling lock debugging due to kernel taint