Warning: Permanently added '10.128.0.206' (ED25519) to the list of known hosts. 2026/07/20 04:26:52 parsed 1 programs 2026/07/20 04:26:52 serving rpc on tcp://46115 [ 23.924410][ T30] audit: type=1400 audit(1784521612.258:64): 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 [ 23.945219][ T30] audit: type=1400 audit(1784521612.258:65): 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 [ 24.554506][ T30] audit: type=1400 audit(1784521612.888:66): avc: denied { mounton } for pid=301 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 [ 24.555557][ T301] cgroup: Unknown subsys name 'net' [ 24.577164][ T30] audit: type=1400 audit(1784521612.888:67): avc: denied { mount } for pid=301 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 [ 24.604520][ T30] audit: type=1400 audit(1784521612.928:68): avc: denied { unmount } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.604684][ T301] cgroup: Unknown subsys name 'devices' [ 24.749583][ T301] cgroup: Unknown subsys name 'hugetlb' [ 24.755187][ T301] cgroup: Unknown subsys name 'rlimit' [ 24.896275][ T30] audit: type=1400 audit(1784521613.228:69): avc: denied { setattr } for pid=301 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 [ 24.919509][ T30] audit: type=1400 audit(1784521613.228:70): avc: denied { create } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.925024][ T305] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 24.940188][ T30] audit: type=1400 audit(1784521613.228:71): avc: denied { write } for pid=301 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.968844][ T30] audit: type=1400 audit(1784521613.228:72): avc: denied { read } for pid=301 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 [ 24.989270][ T30] audit: type=1400 audit(1784521613.228:73): avc: denied { mounton } for pid=301 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 [ 25.021002][ T301] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.461153][ T309] request_module fs-gadgetfs succeeded, but still no fs? [ 25.777405][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.784462][ T344] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.791966][ T344] device bridge_slave_0 entered promiscuous mode [ 25.798758][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.805764][ T344] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.813128][ T344] device bridge_slave_1 entered promiscuous mode [ 25.848655][ T344] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.855685][ T344] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.862994][ T344] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.870021][ T344] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.887444][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.895110][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.902374][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.911371][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.919630][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.926646][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.943140][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.951325][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.958358][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.965730][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.973673][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.987808][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.998397][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.006324][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.013738][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.021997][ T344] device veth0_vlan entered promiscuous mode [ 26.032889][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.041664][ T344] device veth1_macvtap entered promiscuous mode [ 26.050406][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.060419][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/20 04:26:54 executed programs: 0 [ 26.379716][ T369] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.386763][ T369] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.394196][ T369] device bridge_slave_0 entered promiscuous mode [ 26.401055][ T369] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.408110][ T369] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.415501][ T369] device bridge_slave_1 entered promiscuous mode [ 26.452753][ T369] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.459828][ T369] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.467102][ T369] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.474155][ T369] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.495998][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.503814][ T350] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.511052][ T350] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.524962][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.533200][ T350] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.540236][ T350] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.558957][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.567064][ T350] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.574093][ T350] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.581711][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.589980][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.599704][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.613984][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 26.621989][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.630309][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.637753][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.645790][ T369] device veth0_vlan entered promiscuous mode [ 26.660183][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 26.668394][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.677540][ T369] device veth1_macvtap entered promiscuous mode [ 26.686744][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 26.694414][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 26.702663][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.716786][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 26.725240][ T350] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.748477][ T373] ================================================================== [ 26.756567][ T373] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 26.763344][ T373] Write of size 8 at addr ffff88812d41f550 by task syz.2.17/373 [ 26.770957][ T373] [ 26.773274][ T373] CPU: 0 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0 [ 26.780362][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 26.790410][ T373] Call Trace: [ 26.793669][ T373] [ 26.796575][ T373] __dump_stack+0x21/0x30 [ 26.800886][ T373] dump_stack_lvl+0x110/0x170 [ 26.805539][ T373] ? show_regs_print_info+0x20/0x20 [ 26.810716][ T373] ? load_image+0x3f0/0x3f0 [ 26.815298][ T373] print_address_description+0x7f/0x2c0 [ 26.820828][ T373] ? mutex_lock+0x8e/0x1c0 [ 26.825223][ T373] kasan_report+0x10f/0x150 [ 26.829702][ T373] ? mutex_lock+0x8e/0x1c0 [ 26.834180][ T373] kasan_check_range+0x249/0x2a0 [ 26.839090][ T373] __kasan_check_write+0x14/0x20 [ 26.844005][ T373] mutex_lock+0x8e/0x1c0 [ 26.848228][ T373] ? wait_for_completion_killable_timeout+0x10/0x10 [ 26.854808][ T373] ? l2tp_session_put+0xaf/0x1a0 [ 26.859721][ T373] ? l2tp_session_delete+0x3a9/0x4a0 [ 26.864983][ T373] pppol2tp_release+0x178/0x2b0 [ 26.869808][ T373] sock_close+0xb8/0x200 [ 26.874028][ T373] ? sock_mmap+0xa0/0xa0 [ 26.878243][ T373] __fput+0x22b/0x900 [ 26.882199][ T373] ____fput+0x15/0x20 [ 26.886153][ T373] task_work_run+0x127/0x190 [ 26.890716][ T373] exit_to_user_mode_loop+0xd0/0xe0 [ 26.895885][ T373] exit_to_user_mode_prepare+0x87/0xd0 [ 26.901315][ T373] syscall_exit_to_user_mode+0x1a/0x30 [ 26.906746][ T373] do_syscall_64+0x58/0xa0 [ 26.911134][ T373] ? clear_bhb_loop+0x50/0xa0 [ 26.915782][ T373] ? clear_bhb_loop+0x50/0xa0 [ 26.920432][ T373] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 26.926300][ T373] RIP: 0033:0x7f131f107e99 [ 26.930690][ T373] 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 [ 26.950273][ T373] RSP: 002b:00007ffca004cbd8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 26.958675][ T373] RAX: 0000000000000000 RBX: 00007ffca004ccc0 RCX: 00007f131f107e99 [ 26.966619][ T373] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 26.974560][ T373] RBP: 0000000000006872 R08: 0000000000000001 R09: 0000000000000000 [ 26.982525][ T373] R10: 0000001b33020000 R11: 0000000000000246 R12: 0000000000000000 [ 26.990478][ T373] R13: 00007f131f38ffac R14: 00007f131f38ffa8 R15: 00007f131f38ffa0 [ 26.998435][ T373] [ 27.001432][ T373] [ 27.003729][ T373] Allocated by task 373: [ 27.007940][ T373] __kasan_kmalloc+0xd4/0x100 [ 27.012793][ T373] __kmalloc+0x13d/0x2c0 [ 27.017013][ T373] l2tp_session_create+0x39/0xb60 [ 27.022011][ T373] pppol2tp_connect+0xbf5/0x1640 [ 27.026920][ T373] __sys_connect+0x3cb/0x450 [ 27.031478][ T373] __x64_sys_connect+0x7a/0x90 [ 27.036212][ T373] x64_sys_call+0x7c/0x9a0 [ 27.040606][ T373] do_syscall_64+0x4c/0xa0 [ 27.045013][ T373] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.050891][ T373] [ 27.053188][ T373] Freed by task 373: [ 27.057049][ T373] kasan_set_track+0x4a/0x70 [ 27.061612][ T373] kasan_set_free_info+0x23/0x40 [ 27.066530][ T373] ____kasan_slab_free+0x125/0x160 [ 27.071612][ T373] __kasan_slab_free+0x11/0x20 [ 27.076360][ T373] slab_free_freelist_hook+0xc2/0x190 [ 27.081704][ T373] kfree+0xc4/0x270 [ 27.085488][ T373] l2tp_session_put+0xaf/0x1a0 [ 27.090225][ T373] l2tp_session_delete+0x3a9/0x4a0 [ 27.095308][ T373] pppol2tp_release+0x169/0x2b0 [ 27.100132][ T373] sock_close+0xb8/0x200 [ 27.104345][ T373] __fput+0x22b/0x900 [ 27.108295][ T373] ____fput+0x15/0x20 [ 27.112246][ T373] task_work_run+0x127/0x190 [ 27.116804][ T373] exit_to_user_mode_loop+0xd0/0xe0 [ 27.121971][ T373] exit_to_user_mode_prepare+0x87/0xd0 [ 27.127400][ T373] syscall_exit_to_user_mode+0x1a/0x30 [ 27.132831][ T373] do_syscall_64+0x58/0xa0 [ 27.137223][ T373] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.143242][ T373] [ 27.145547][ T373] The buggy address belongs to the object at ffff88812d41f400 [ 27.145547][ T373] which belongs to the cache kmalloc-512 of size 512 [ 27.159598][ T373] The buggy address is located 336 bytes inside of [ 27.159598][ T373] 512-byte region [ffff88812d41f400, ffff88812d41f600) [ 27.172851][ T373] The buggy address belongs to the page: [ 27.178464][ T373] page:ffffea0004b50700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12d41c [ 27.188679][ T373] head:ffffea0004b50700 order:2 compound_mapcount:0 compound_pincount:0 [ 27.196976][ T373] flags: 0x4000000000010200(slab|head|zone=1) [ 27.203037][ T373] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 27.211594][ T373] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.220147][ T373] page dumped because: kasan: bad access detected [ 27.226530][ T373] page_owner tracks the page as allocated [ 27.232220][ T373] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 369, ts 26737846131, free_ts 0 [ 27.249643][ T373] post_alloc_hook+0x192/0x1b0 [ 27.254387][ T373] prep_new_page+0x1c/0x110 [ 27.258860][ T373] get_page_from_freelist+0x2c3a/0x2cd0 [ 27.264379][ T373] __alloc_pages+0x1a2/0x460 [ 27.268941][ T373] new_slab+0xa0/0x4d0 [ 27.272983][ T373] ___slab_alloc+0x3ac/0x840 [ 27.277542][ T373] __slab_alloc+0x49/0x90 [ 27.281842][ T373] __kmalloc+0x16a/0x2c0 [ 27.286057][ T373] fib6_info_alloc+0x34/0xe0 [ 27.290635][ T373] ip6_route_info_create+0x51b/0x14d0 [ 27.295985][ T373] ip6_route_add+0x27/0x130 [ 27.300458][ T373] addrconf_permanent_addr+0x635/0x940 [ 27.305887][ T373] addrconf_notify+0x752/0xe00 [ 27.310620][ T373] raw_notifier_call_chain+0x90/0x100 [ 27.315963][ T373] __dev_notify_flags+0x2f4/0x5b0 [ 27.320966][ T373] dev_change_flags+0xe3/0x1a0 [ 27.325708][ T373] page_owner free stack trace missing [ 27.331045][ T373] [ 27.333341][ T373] Memory state around the buggy address: [ 27.338939][ T373] ffff88812d41f400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.346969][ T373] ffff88812d41f480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.355011][ T373] >ffff88812d41f500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.363043][ T373] ^ [ 27.369687][ T373] ffff88812d41f580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.377718][ T373] ffff88812d41f600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.385747][ T373] ================================================================== [ 27.393813][ T373] Disabling lock debugging due to kernel taint