Warning: Permanently added '10.128.0.17' (ED25519) to the list of known hosts. 2026/07/09 19:43:05 parsed 1 programs 2026/07/09 19:43:05 serving rpc on tcp://36145 [ 24.744732][ T30] audit: type=1400 audit(1783626185.521:64): avc: denied { node_bind } for pid=293 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.765987][ T30] audit: type=1400 audit(1783626185.521:65): avc: denied { module_request } for pid=293 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 [ 25.751481][ T30] audit: type=1400 audit(1783626186.521:66): avc: denied { mounton } for pid=299 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 [ 25.754834][ T299] cgroup: Unknown subsys name 'net' [ 25.774235][ T30] audit: type=1400 audit(1783626186.521:67): avc: denied { mount } for pid=299 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 [ 25.801553][ T30] audit: type=1400 audit(1783626186.551:68): avc: denied { unmount } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.801908][ T299] cgroup: Unknown subsys name 'devices' [ 25.945288][ T299] cgroup: Unknown subsys name 'hugetlb' [ 25.951038][ T299] cgroup: Unknown subsys name 'rlimit' [ 26.127414][ T30] audit: type=1400 audit(1783626186.901:69): avc: denied { setattr } for pid=299 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 26.150724][ T30] audit: type=1400 audit(1783626186.901:70): avc: denied { create } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.171182][ T30] audit: type=1400 audit(1783626186.901:71): avc: denied { write } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.190781][ T303] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.191776][ T30] audit: type=1400 audit(1783626186.901:72): avc: denied { read } for pid=299 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 [ 26.220414][ T30] audit: type=1400 audit(1783626186.901:73): avc: denied { mounton } for pid=299 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 [ 26.252175][ T299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.678557][ T305] request_module fs-gadgetfs succeeded, but still no fs? [ 27.328224][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.335497][ T349] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.343059][ T349] device bridge_slave_0 entered promiscuous mode [ 27.350096][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.357197][ T349] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.364609][ T349] device bridge_slave_1 entered promiscuous mode [ 27.405506][ T349] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.412639][ T349] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.420080][ T349] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.427159][ T349] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.447121][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.454791][ T343] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.461925][ T343] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.471076][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.479356][ T343] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.486413][ T343] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.495425][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.503654][ T343] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.510672][ T343] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.529055][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.538249][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.551635][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.562793][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.571093][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.578632][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.586672][ T349] device veth0_vlan entered promiscuous mode [ 27.603260][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.612251][ T349] device veth1_macvtap entered promiscuous mode [ 27.626745][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.636545][ T343] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.674124][ T349] syz-executor (349) used greatest stack depth: 21504 bytes left 2026/07/09 19:43:08 executed programs: 0 [ 27.971268][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.978484][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.986198][ T367] device bridge_slave_0 entered promiscuous mode [ 27.993542][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.000597][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.008134][ T367] device bridge_slave_1 entered promiscuous mode [ 28.061972][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.069146][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.076705][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.083753][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.103428][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.110974][ T45] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.118318][ T45] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.127396][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.135693][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.142714][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.153896][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.162116][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.169190][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.180094][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.189592][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.202617][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.214383][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.222499][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.230030][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.238429][ T367] device veth0_vlan entered promiscuous mode [ 28.248300][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.257359][ T367] device veth1_macvtap entered promiscuous mode [ 28.266530][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.276213][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.298543][ T372] ================================================================== [ 28.306630][ T372] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 28.313416][ T372] Write of size 8 at addr ffff88812ebacd50 by task syz.2.17/372 [ 28.321053][ T372] [ 28.323378][ T372] CPU: 0 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.330478][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 28.340529][ T372] Call Trace: [ 28.343811][ T372] [ 28.346762][ T372] __dump_stack+0x21/0x30 [ 28.351109][ T372] dump_stack_lvl+0x110/0x170 [ 28.355781][ T372] ? show_regs_print_info+0x20/0x20 [ 28.360985][ T372] ? load_image+0x3f0/0x3f0 [ 28.365487][ T372] print_address_description+0x7f/0x2c0 [ 28.371032][ T372] ? mutex_lock+0x8e/0x1c0 [ 28.375444][ T372] kasan_report+0x10f/0x150 [ 28.379947][ T372] ? mutex_lock+0x8e/0x1c0 [ 28.384360][ T372] kasan_check_range+0x249/0x2a0 [ 28.389294][ T372] __kasan_check_write+0x14/0x20 [ 28.394231][ T372] mutex_lock+0x8e/0x1c0 [ 28.398470][ T372] ? wait_for_completion_killable_timeout+0x10/0x10 [ 28.405052][ T372] ? l2tp_session_put+0xaf/0x1a0 [ 28.409994][ T372] ? l2tp_session_delete+0x3a9/0x4a0 [ 28.415277][ T372] pppol2tp_release+0x178/0x2b0 [ 28.420125][ T372] sock_close+0xb8/0x200 [ 28.424373][ T372] ? sock_mmap+0xa0/0xa0 [ 28.428610][ T372] __fput+0x22b/0x900 [ 28.432592][ T372] ____fput+0x15/0x20 [ 28.436567][ T372] task_work_run+0x127/0x190 [ 28.441152][ T372] exit_to_user_mode_loop+0xd0/0xe0 [ 28.446348][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 28.451798][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 28.457246][ T372] do_syscall_64+0x58/0xa0 [ 28.461662][ T372] ? clear_bhb_loop+0x50/0xa0 [ 28.466329][ T372] ? clear_bhb_loop+0x50/0xa0 [ 28.470997][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.476882][ T372] RIP: 0033:0x7fb29437ae59 [ 28.481303][ T372] 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 [ 28.500901][ T372] RSP: 002b:00007fff7640b948 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 28.509313][ T372] RAX: 0000000000000000 RBX: 00007fff7640ba30 RCX: 00007fb29437ae59 [ 28.517285][ T372] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 28.525271][ T372] RBP: 0000000000006e67 R08: 0000000000000001 R09: 0000000000000000 [ 28.533242][ T372] R10: 0000001b32e20000 R11: 0000000000000246 R12: 0000000000000000 [ 28.541222][ T372] R13: 00007fb294602fac R14: 00007fb294602fa8 R15: 00007fb294602fa0 [ 28.549190][ T372] [ 28.552207][ T372] [ 28.554522][ T372] Allocated by task 372: [ 28.558751][ T372] __kasan_kmalloc+0xd4/0x100 [ 28.563422][ T372] __kmalloc+0x13d/0x2c0 [ 28.567671][ T372] l2tp_session_create+0x39/0xb60 [ 28.572737][ T372] pppol2tp_connect+0xbf5/0x1640 [ 28.577670][ T372] __sys_connect+0x3cb/0x450 [ 28.582341][ T372] __x64_sys_connect+0x7a/0x90 [ 28.587121][ T372] x64_sys_call+0x7c/0x9a0 [ 28.591533][ T372] do_syscall_64+0x4c/0xa0 [ 28.595943][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.601828][ T372] [ 28.604156][ T372] Freed by task 372: [ 28.608057][ T372] kasan_set_track+0x4a/0x70 [ 28.612653][ T372] kasan_set_free_info+0x23/0x40 [ 28.617603][ T372] ____kasan_slab_free+0x125/0x160 [ 28.622705][ T372] __kasan_slab_free+0x11/0x20 [ 28.627460][ T372] slab_free_freelist_hook+0xc2/0x190 [ 28.632832][ T372] kfree+0xc4/0x270 [ 28.636635][ T372] l2tp_session_put+0xaf/0x1a0 [ 28.641392][ T372] l2tp_session_delete+0x3a9/0x4a0 [ 28.646501][ T372] pppol2tp_release+0x169/0x2b0 [ 28.651343][ T372] sock_close+0xb8/0x200 [ 28.655577][ T372] __fput+0x22b/0x900 [ 28.659552][ T372] ____fput+0x15/0x20 [ 28.663533][ T372] task_work_run+0x127/0x190 [ 28.668156][ T372] exit_to_user_mode_loop+0xd0/0xe0 [ 28.673361][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 28.678831][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 28.684288][ T372] do_syscall_64+0x58/0xa0 [ 28.688704][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.694589][ T372] [ 28.696915][ T372] The buggy address belongs to the object at ffff88812ebacc00 [ 28.696915][ T372] which belongs to the cache kmalloc-512 of size 512 [ 28.710961][ T372] The buggy address is located 336 bytes inside of [ 28.710961][ T372] 512-byte region [ffff88812ebacc00, ffff88812ebace00) [ 28.724229][ T372] The buggy address belongs to the page: [ 28.729849][ T372] page:ffffea0004baeb00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12ebac [ 28.740105][ T372] head:ffffea0004baeb00 order:2 compound_mapcount:0 compound_pincount:0 [ 28.748422][ T372] flags: 0x4000000000010200(slab|head|zone=1) [ 28.754505][ T372] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 28.763086][ T372] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 28.771656][ T372] page dumped because: kasan: bad access detected [ 28.778059][ T372] page_owner tracks the page as allocated [ 28.783771][ T372] 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, ts 28289498672, free_ts 27208705349 [ 28.804183][ T372] post_alloc_hook+0x192/0x1b0 [ 28.808981][ T372] prep_new_page+0x1c/0x110 [ 28.813499][ T372] get_page_from_freelist+0x2c3a/0x2cd0 [ 28.819061][ T372] __alloc_pages+0x1a2/0x460 [ 28.823660][ T372] new_slab+0xa0/0x4d0 [ 28.827751][ T372] ___slab_alloc+0x3ac/0x840 [ 28.832363][ T372] __slab_alloc+0x49/0x90 [ 28.836723][ T372] __kmalloc+0x16a/0x2c0 [ 28.840979][ T372] fib6_info_alloc+0x34/0xe0 [ 28.845580][ T372] ip6_route_info_create+0x51b/0x14d0 [ 28.850975][ T372] ip6_route_add+0x27/0x130 [ 28.855494][ T372] addrconf_add_dev+0x385/0x4c0 [ 28.860360][ T372] addrconf_init_auto_addrs+0x7ae/0xbd0 [ 28.865917][ T372] addrconf_notify+0x95d/0xe00 [ 28.870701][ T372] raw_notifier_call_chain+0x90/0x100 [ 28.876091][ T372] __dev_notify_flags+0x2f4/0x5b0 [ 28.881125][ T372] page last free stack trace: [ 28.885800][ T372] free_unref_page_prepare+0x5fa/0x600 [ 28.891269][ T372] free_unref_page+0xae/0x540 [ 28.895976][ T372] __free_pages+0x6c/0x100 [ 28.900396][ T372] free_pages+0x82/0x90 [ 28.904558][ T372] kasan_depopulate_vmalloc_pte+0x6b/0x90 [ 28.910287][ T372] __apply_to_page_range+0x8ca/0xc70 [ 28.915577][ T372] apply_to_existing_page_range+0x38/0x50 [ 28.921304][ T372] kasan_release_vmalloc+0x97/0xb0 [ 28.926425][ T372] __purge_vmap_area_lazy+0xa8d/0x1890 [ 28.931896][ T372] try_purge_vmap_area_lazy+0x38/0x50 [ 28.937277][ T372] free_vmap_area_noflush+0xa59/0xaa0 [ 28.942664][ T372] remove_vm_area+0x1c1/0x1e0 [ 28.947345][ T372] __vunmap+0x259/0x980 [ 28.951501][ T372] vfree+0x8b/0xc0 [ 28.955227][ T372] kcov_close+0x2b/0x50 [ 28.959404][ T372] __fput+0x22b/0x900 [ 28.963395][ T372] [ 28.965720][ T372] Memory state around the buggy address: [ 28.971362][ T372] ffff88812ebacc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.979449][ T372] ffff88812ebacc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.987532][ T372] >ffff88812ebacd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.995692][ T372] ^ [ 29.002363][ T372] ffff88812ebacd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.010426][ T372] ffff88812ebace00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.018488][ T372] ================================================================== [ 29.026554][ T372] Disabling lock debugging due to kernel taint