Warning: Permanently added '10.128.0.96' (ED25519) to the list of known hosts. 2026/07/28 04:14:00 parsed 1 programs 2026/07/28 04:14:00 serving rpc on tcp://39981 [ 24.786483][ T28] audit: type=1400 audit(1785212040.737:64): 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 [ 24.807288][ T28] audit: type=1400 audit(1785212040.737:65): 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 [ 25.963805][ T28] audit: type=1400 audit(1785212041.917:66): 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 [ 25.966927][ T300] cgroup: Unknown subsys name 'net' [ 25.986562][ T28] audit: type=1400 audit(1785212041.917:67): 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 [ 26.014140][ T28] audit: type=1400 audit(1785212041.947:68): 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 [ 26.014523][ T300] cgroup: Unknown subsys name 'devices' [ 26.162298][ T300] cgroup: Unknown subsys name 'hugetlb' [ 26.168014][ T300] cgroup: Unknown subsys name 'rlimit' [ 26.281318][ T28] audit: type=1400 audit(1785212042.237:69): 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 [ 26.304544][ T28] audit: type=1400 audit(1785212042.237:70): 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 [ 26.324968][ T28] audit: type=1400 audit(1785212042.237:71): 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 [ 26.345288][ T28] audit: type=1400 audit(1785212042.237:72): 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 Setting up swapspace version 1, size = 127995904 bytes [ 26.365643][ T28] audit: type=1400 audit(1785212042.237:73): 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 [ 26.365668][ T304] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.437866][ T300] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.091688][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 27.786166][ T356] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.793315][ T356] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.800817][ T356] device bridge_slave_0 entered promiscuous mode [ 27.807697][ T356] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.814907][ T356] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.822430][ T356] device bridge_slave_1 entered promiscuous mode [ 27.866471][ T356] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.873538][ T356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.880870][ T356] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.887903][ T356] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.909340][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.917352][ T319] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.924679][ T319] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.933943][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.942247][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.949295][ T319] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.958102][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.966431][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.973515][ T319] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.986273][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.995788][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.011301][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.023440][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.031571][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.039024][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.047769][ T356] device veth0_vlan entered promiscuous mode [ 28.063527][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.072996][ T356] device veth1_macvtap entered promiscuous mode [ 28.083288][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.093444][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.129177][ T356] syz-executor (356) used greatest stack depth: 21632 bytes left 2026/07/28 04:14:04 executed programs: 0 [ 28.387492][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.394860][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.402228][ T367] device bridge_slave_0 entered promiscuous mode [ 28.409060][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.416170][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.423724][ T367] device bridge_slave_1 entered promiscuous mode [ 28.471958][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.479004][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.486271][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.493322][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.515132][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.522777][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.531316][ T319] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.546368][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.554828][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.561916][ T319] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.579550][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.587883][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.599484][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.610813][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.618932][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.627916][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.636983][ T367] device veth0_vlan entered promiscuous mode [ 28.648252][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.657361][ T367] device veth1_macvtap entered promiscuous mode [ 28.667115][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.676942][ T319] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.762553][ T374] ================================================================== [ 28.770756][ T374] BUG: KASAN: use-after-free in mutex_lock+0x86/0x1b0 [ 28.777573][ T374] Write of size 8 at addr ffff8881228ae550 by task syz.2.17/374 [ 28.785223][ T374] [ 28.787600][ T374] CPU: 0 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.794723][ T374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 28.804818][ T374] Call Trace: [ 28.808127][ T374] [ 28.811068][ T374] __dump_stack+0x21/0x24 [ 28.815427][ T374] dump_stack_lvl+0x110/0x170 [ 28.820127][ T374] ? __cfi_dump_stack_lvl+0x8/0x8 [ 28.825179][ T374] ? mutex_lock+0x86/0x1b0 [ 28.829632][ T374] print_address_description+0x71/0x200 [ 28.835203][ T374] print_report+0x4a/0x60 [ 28.839562][ T374] kasan_report+0x122/0x150 [ 28.844114][ T374] ? mutex_lock+0x86/0x1b0 [ 28.848571][ T374] kasan_check_range+0x249/0x2a0 [ 28.853532][ T374] __kasan_check_write+0x14/0x20 [ 28.858495][ T374] mutex_lock+0x86/0x1b0 [ 28.862776][ T374] ? __cfi_mutex_lock+0x10/0x10 [ 28.867653][ T374] ? kfree+0x6f/0xf0 [ 28.871564][ T374] ? l2tp_session_put+0xaf/0x1a0 [ 28.876514][ T374] ? l2tp_session_delete+0x3df/0x4d0 [ 28.881828][ T374] pppol2tp_release+0x178/0x2b0 [ 28.886695][ T374] sock_close+0xc9/0x220 [ 28.890968][ T374] ? __cfi_sock_close+0x10/0x10 [ 28.895848][ T374] __fput+0x1fd/0x8f0 [ 28.899879][ T374] ____fput+0x15/0x20 [ 28.903891][ T374] task_work_run+0x1e1/0x250 [ 28.908503][ T374] ? __cfi_task_work_run+0x10/0x10 [ 28.913665][ T374] ? free_nsproxy+0x21f/0x270 [ 28.918375][ T374] do_exit+0xaf2/0x2850 [ 28.922583][ T374] ? __cfi_do_exit+0x10/0x10 [ 28.927203][ T374] ? __mmdrop+0x31b/0x600 [ 28.931565][ T374] ? __kasan_check_write+0x14/0x20 [ 28.936704][ T374] ? _raw_spin_lock_irq+0x95/0xf0 [ 28.941747][ T374] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 28.947399][ T374] do_group_exit+0x21b/0x2e0 [ 28.952008][ T374] ? __kasan_check_write+0x14/0x20 [ 28.957131][ T374] ? recalc_sigpending+0x180/0x1c0 [ 28.962258][ T374] get_signal+0x167c/0x1700 [ 28.966796][ T374] ? __cfi_get_signal+0x10/0x10 [ 28.971658][ T374] ? usleep_range_state+0x130/0x130 [ 28.976951][ T374] arch_do_signal_or_restart+0xd1/0x11c0 [ 28.982620][ T374] ? hrtimer_nanosleep+0x18f/0x340 [ 28.987746][ T374] ? __cfi_hrtimer_nanosleep+0x10/0x10 [ 28.993222][ T374] ? __cfi_hrtimer_wakeup+0x10/0x10 [ 28.998436][ T374] ? get_timespec64+0x116/0x1b0 [ 29.003310][ T374] ? __cfi_arch_do_signal_or_restart+0x10/0x10 [ 29.009467][ T374] ? __x64_sys_clock_nanosleep+0xb0/0xb0 [ 29.015111][ T374] ? do_user_addr_fault+0x9a5/0x1030 [ 29.020419][ T374] exit_to_user_mode_loop+0x7a/0xb0 [ 29.025637][ T374] exit_to_user_mode_prepare+0x87/0xd0 [ 29.031125][ T374] syscall_exit_to_user_mode+0x1a/0x30 [ 29.036695][ T374] do_syscall_64+0x58/0xa0 [ 29.041126][ T374] ? clear_bhb_loop+0x30/0x80 [ 29.045813][ T374] ? clear_bhb_loop+0x30/0x80 [ 29.050507][ T374] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.056417][ T374] RIP: 0033:0x7fe4ea95e6ce [ 29.060854][ T374] Code: Unable to access opcode bytes at 0x7fe4ea95e6a4. [ 29.067877][ T374] RSP: 002b:00007fe4eb80fe78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6 [ 29.076308][ T374] RAX: fffffffffffffdfc RBX: 00007fe4eb8106c0 RCX: 00007fe4ea95e6ce [ 29.084293][ T374] RDX: 00007fe4eb80fed0 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.092272][ T374] RBP: 00007fe4eaa33eaf R08: 0000000000000000 R09: 0000000000000000 [ 29.100253][ T374] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.108238][ T374] R13: 00007fe4eac26038 R14: 00007fe4eac25fa0 R15: 00007ffdfbae9268 [ 29.116222][ T374] [ 29.119252][ T374] [ 29.121585][ T374] Allocated by task 373: [ 29.125832][ T374] kasan_set_track+0x4b/0x70 [ 29.130441][ T374] kasan_save_alloc_info+0x1f/0x30 [ 29.135553][ T374] __kasan_kmalloc+0x95/0xb0 [ 29.140156][ T374] __kmalloc+0xb4/0x1e0 [ 29.144409][ T374] l2tp_session_create+0x38/0xbd0 [ 29.149473][ T374] pppol2tp_connect+0xbf5/0x1640 [ 29.154451][ T374] __sys_connect+0x3da/0x460 [ 29.159057][ T374] __x64_sys_connect+0x7a/0x90 [ 29.163926][ T374] x64_sys_call+0x88d/0x9a0 [ 29.168456][ T374] do_syscall_64+0x4c/0xa0 [ 29.172892][ T374] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.178804][ T374] [ 29.181135][ T374] Freed by task 374: [ 29.185028][ T374] kasan_set_track+0x4b/0x70 [ 29.189693][ T374] kasan_save_free_info+0x2b/0x40 [ 29.194734][ T374] ____kasan_slab_free+0x132/0x180 [ 29.199894][ T374] __kasan_slab_free+0x11/0x20 [ 29.204670][ T374] slab_free_freelist_hook+0xc2/0x190 [ 29.210055][ T374] __kmem_cache_free+0xb7/0x1b0 [ 29.214936][ T374] kfree+0x6f/0xf0 [ 29.218678][ T374] l2tp_session_put+0xaf/0x1a0 [ 29.223451][ T374] l2tp_session_delete+0x3df/0x4d0 [ 29.228576][ T374] pppol2tp_release+0x169/0x2b0 [ 29.233446][ T374] sock_close+0xc9/0x220 [ 29.237706][ T374] __fput+0x1fd/0x8f0 [ 29.241698][ T374] ____fput+0x15/0x20 [ 29.245696][ T374] task_work_run+0x1e1/0x250 [ 29.250410][ T374] do_exit+0xaf2/0x2850 [ 29.254582][ T374] do_group_exit+0x21b/0x2e0 [ 29.259191][ T374] get_signal+0x167c/0x1700 [ 29.263796][ T374] arch_do_signal_or_restart+0xd1/0x11c0 [ 29.269437][ T374] exit_to_user_mode_loop+0x7a/0xb0 [ 29.274637][ T374] exit_to_user_mode_prepare+0x87/0xd0 [ 29.280126][ T374] syscall_exit_to_user_mode+0x1a/0x30 [ 29.285615][ T374] do_syscall_64+0x58/0xa0 [ 29.290045][ T374] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.295957][ T374] [ 29.298290][ T374] The buggy address belongs to the object at ffff8881228ae400 [ 29.298290][ T374] which belongs to the cache kmalloc-512 of size 512 [ 29.312375][ T374] The buggy address is located 336 bytes inside of [ 29.312375][ T374] 512-byte region [ffff8881228ae400, ffff8881228ae600) [ 29.325687][ T374] [ 29.328014][ T374] The buggy address belongs to the physical page: [ 29.334436][ T374] page:ffffea00048a2b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1228ac [ 29.344804][ T374] head:ffffea00048a2b00 order:2 compound_mapcount:0 compound_pincount:0 [ 29.353154][ T374] flags: 0x4000000000010200(slab|head|zone=1) [ 29.359276][ T374] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 29.367871][ T374] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 29.376470][ T374] page dumped because: kasan: bad access detected [ 29.382897][ T374] page_owner tracks the page as allocated [ 29.388634][ T374] 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 367, tgid 367 (syz-executor), ts 28690032275, free_ts 27688291453 [ 29.411221][ T374] post_alloc_hook+0x1f5/0x210 [ 29.416021][ T374] prep_new_page+0x1c/0x110 [ 29.420537][ T374] get_page_from_freelist+0x2ca9/0x2d20 [ 29.426105][ T374] __alloc_pages+0x1fa/0x610 [ 29.430709][ T374] alloc_slab_page+0x6e/0xf0 [ 29.435314][ T374] new_slab+0x98/0x3e0 [ 29.439392][ T374] ___slab_alloc+0x70f/0xb70 [ 29.443994][ T374] __slab_alloc+0x5e/0xa0 [ 29.448339][ T374] __kmem_cache_alloc_node+0x204/0x2d0 [ 29.453807][ T374] __kmalloc_node+0xa2/0x1e0 [ 29.458406][ T374] qdisc_alloc+0x82/0x750 [ 29.462760][ T374] qdisc_create_dflt+0x6b/0x3a0 [ 29.467624][ T374] dev_activate+0x30e/0x1110 [ 29.472228][ T374] __dev_open+0x40d/0x520 [ 29.476569][ T374] __dev_change_flags+0x1f2/0x6b0 [ 29.481609][ T374] dev_change_flags+0x80/0x1a0 [ 29.486384][ T374] page last free stack trace: [ 29.491064][ T374] free_unref_page_prepare+0x80c/0x820 [ 29.496536][ T374] free_unref_page+0x93/0x530 [ 29.501239][ T374] __free_pages+0x67/0x100 [ 29.505667][ T374] __vunmap+0xa3c/0xc00 [ 29.509848][ T374] vfree+0x61/0x90 [ 29.513576][ T374] kcov_close+0x2b/0x50 [ 29.517754][ T374] __fput+0x1fd/0x8f0 [ 29.521760][ T374] ____fput+0x15/0x20 [ 29.525760][ T374] task_work_run+0x1e1/0x250 [ 29.530366][ T374] do_exit+0xaf2/0x2850 [ 29.534545][ T374] do_group_exit+0x21b/0x2e0 [ 29.539153][ T374] get_signal+0x167c/0x1700 [ 29.543673][ T374] arch_do_signal_or_restart+0xd1/0x11c0 [ 29.549329][ T374] exit_to_user_mode_loop+0x7a/0xb0 [ 29.554556][ T374] exit_to_user_mode_prepare+0x87/0xd0 [ 29.560032][ T374] syscall_exit_to_user_mode+0x1a/0x30 [ 29.565504][ T374] [ 29.567860][ T374] Memory state around the buggy address: [ 29.573496][ T374] ffff8881228ae400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.581566][ T374] ffff8881228ae480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.589636][ T374] >ffff8881228ae500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.597693][ T374] ^ [ 29.604368][ T374] ffff8881228ae580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.612442][ T374] ffff8881228ae600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.620506][ T374] ================================================================== [ 29.632102][ T374] Disabling lock debugging due to kernel taint