Warning: Permanently added '10.128.1.32' (ED25519) to the list of known hosts. 2026/08/20 17:51:41 parsed 1 programs 2026/08/20 17:51:41 serving rpc on tcp://45499 [ 24.348583][ T30] audit: type=1400 audit(1787248301.646:64): 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 [ 24.369417][ T30] audit: type=1400 audit(1787248301.646:65): 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 [ 25.012339][ T30] audit: type=1400 audit(1787248302.316:66): 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 [ 25.013429][ T300] cgroup: Unknown subsys name 'net' [ 25.035020][ T30] audit: type=1400 audit(1787248302.316:67): 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 [ 25.062334][ T30] audit: type=1400 audit(1787248302.346:68): 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 [ 25.062508][ T300] cgroup: Unknown subsys name 'devices' [ 25.201926][ T300] cgroup: Unknown subsys name 'hugetlb' [ 25.207550][ T300] cgroup: Unknown subsys name 'rlimit' [ 25.318685][ T30] audit: type=1400 audit(1787248302.616:69): avc: denied { setattr } for pid=300 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 [ 25.341934][ T30] audit: type=1400 audit(1787248302.616:70): 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 [ 25.362306][ T30] audit: type=1400 audit(1787248302.616:71): 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 [ 25.367960][ T304] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.382552][ T30] audit: type=1400 audit(1787248302.616:72): 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 [ 25.411308][ T30] audit: type=1400 audit(1787248302.626:73): 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 [ 25.444109][ T300] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.835245][ T308] request_module fs-gadgetfs succeeded, but still no fs? [ 26.088160][ T330] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.095658][ T330] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.103224][ T330] device bridge_slave_0 entered promiscuous mode [ 26.111049][ T330] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.118089][ T330] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.125406][ T330] device bridge_slave_1 entered promiscuous mode [ 26.159141][ T330] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.166197][ T330] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.173483][ T330] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.180511][ T330] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.188449][ T326] syz-executor (326) used greatest stack depth: 22536 bytes left [ 26.199973][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.207915][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.215138][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.224479][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.232670][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.239699][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.248062][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.256301][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.263332][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.274774][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.283783][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.296154][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.306747][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.314811][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.322348][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.331066][ T330] device veth0_vlan entered promiscuous mode [ 26.339847][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.348643][ T330] device veth1_macvtap entered promiscuous mode [ 26.357214][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.367603][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.400985][ T330] syz-executor (330) used greatest stack depth: 22024 bytes left 2026/08/20 17:51:44 executed programs: 0 [ 26.853669][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.860743][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.868216][ T367] device bridge_slave_0 entered promiscuous mode [ 26.875208][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.882278][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.889659][ T367] device bridge_slave_1 entered promiscuous mode [ 26.927476][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.934541][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.941807][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.948814][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.974464][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.982144][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.989261][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.997752][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.006086][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.013134][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.031025][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.039113][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.046144][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.053634][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.061974][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.072244][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 27.080607][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.090999][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 27.098829][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.107258][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.114636][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.125845][ T367] device veth0_vlan entered promiscuous mode [ 27.134974][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 27.143167][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.152743][ T55] device bridge_slave_1 left promiscuous mode [ 27.158836][ T55] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.166262][ T55] device bridge_slave_0 left promiscuous mode [ 27.172431][ T55] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.180358][ T55] device veth1_macvtap left promiscuous mode [ 27.186363][ T55] device veth0_vlan left promiscuous mode [ 27.264777][ T367] device veth1_macvtap entered promiscuous mode [ 27.273230][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 27.280792][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 27.288883][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.298684][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 27.306877][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.361076][ T372] ================================================================== [ 27.369161][ T372] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 27.375941][ T372] Write of size 8 at addr ffff88810faa4950 by task syz.2.17/372 [ 27.383572][ T372] [ 27.385900][ T372] CPU: 1 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 [ 27.393004][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 27.403068][ T372] Call Trace: [ 27.406342][ T372] [ 27.409272][ T372] __dump_stack+0x21/0x30 [ 27.413602][ T372] dump_stack_lvl+0x110/0x170 [ 27.418274][ T372] ? show_regs_print_info+0x20/0x20 [ 27.423472][ T372] ? load_image+0x3f0/0x3f0 [ 27.428062][ T372] print_address_description+0x7f/0x2c0 [ 27.433605][ T372] ? mutex_lock+0x8e/0x1c0 [ 27.438020][ T372] kasan_report+0x10f/0x150 [ 27.442531][ T372] ? mutex_lock+0x8e/0x1c0 [ 27.446947][ T372] kasan_check_range+0x249/0x2a0 [ 27.451867][ T372] __kasan_check_write+0x14/0x20 [ 27.456789][ T372] mutex_lock+0x8e/0x1c0 [ 27.461012][ T372] ? wait_for_completion_killable_timeout+0x10/0x10 [ 27.467601][ T372] ? l2tp_session_put+0xaf/0x1a0 [ 27.472522][ T372] ? l2tp_session_delete+0x3a9/0x4a0 [ 27.477798][ T372] pppol2tp_release+0x178/0x2b0 [ 27.482630][ T372] sock_close+0xb8/0x200 [ 27.486854][ T372] ? sock_mmap+0xa0/0xa0 [ 27.491077][ T372] __fput+0x22b/0x900 [ 27.495042][ T372] ____fput+0x15/0x20 [ 27.499024][ T372] task_work_run+0x127/0x190 [ 27.503626][ T372] do_exit+0xb70/0x29a0 [ 27.507764][ T372] ? finish_task_switch+0x209/0x790 [ 27.512945][ T372] ? put_task_struct+0x90/0x90 [ 27.517707][ T372] ? __remove_hrtimer+0x14d/0x3d0 [ 27.522717][ T372] ? __kasan_check_write+0x14/0x20 [ 27.527867][ T372] ? _raw_spin_lock_irq+0x95/0xf0 [ 27.532898][ T372] do_group_exit+0x149/0x310 [ 27.537483][ T372] ? __kasan_check_write+0x14/0x20 [ 27.542582][ T372] ? recalc_sigpending+0x1c4/0x230 [ 27.547686][ T372] get_signal+0x64f/0x1430 [ 27.552091][ T372] ? usleep_range_state+0x130/0x130 [ 27.557282][ T372] arch_do_signal_or_restart+0xe2/0x1100 [ 27.562905][ T372] ? nanosleep_copyout+0x120/0x120 [ 27.568001][ T372] ? __remove_hrtimer+0x3d0/0x3d0 [ 27.573095][ T372] ? get_timespec64+0x116/0x1b0 [ 27.577926][ T372] ? get_sigframe_size+0x10/0x10 [ 27.582842][ T372] ? __x64_sys_clock_nanosleep+0xb0/0xb0 [ 27.588459][ T372] exit_to_user_mode_loop+0xa7/0xe0 [ 27.593645][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 27.599170][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 27.604610][ T372] do_syscall_64+0x58/0xa0 [ 27.609013][ T372] ? clear_bhb_loop+0x50/0xa0 [ 27.613675][ T372] ? clear_bhb_loop+0x50/0xa0 [ 27.618339][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.624217][ T372] RIP: 0033:0x7fdba93a5257 [ 27.628625][ T372] Code: Unable to access opcode bytes at RIP 0x7fdba93a522d. [ 27.635964][ T372] RSP: 002b:00007ffd34215660 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 [ 27.644360][ T372] RAX: fffffffffffffdfc RBX: 000055556ce46500 RCX: 00007fdba93a5257 [ 27.652312][ T372] RDX: 00007ffd342156a0 RSI: 0000000000000000 RDI: 0000000000000000 [ 27.660263][ T372] RBP: 00007fdba9481024 R08: 0000000000000000 R09: 0000000000000000 [ 27.668302][ T372] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 27.676251][ T372] R13: 00007fdba9671fac R14: 00007fdba9671fa0 R15: 00007fdba9671fa0 [ 27.684206][ T372] [ 27.687207][ T372] [ 27.689508][ T372] Allocated by task 371: [ 27.693726][ T372] __kasan_kmalloc+0xd4/0x100 [ 27.698385][ T372] __kmalloc+0x13d/0x2c0 [ 27.702604][ T372] l2tp_session_create+0x39/0xb60 [ 27.707606][ T372] pppol2tp_connect+0xbf5/0x1640 [ 27.712521][ T372] __sys_connect+0x3cb/0x450 [ 27.717092][ T372] __x64_sys_connect+0x7a/0x90 [ 27.721830][ T372] x64_sys_call+0x7c/0x9a0 [ 27.726225][ T372] do_syscall_64+0x4c/0xa0 [ 27.730619][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.736580][ T372] [ 27.738883][ T372] Freed by task 372: [ 27.742750][ T372] kasan_set_track+0x4a/0x70 [ 27.747341][ T372] kasan_set_free_info+0x23/0x40 [ 27.752257][ T372] ____kasan_slab_free+0x125/0x160 [ 27.757352][ T372] __kasan_slab_free+0x11/0x20 [ 27.762092][ T372] slab_free_freelist_hook+0xc2/0x190 [ 27.767513][ T372] kfree+0xc4/0x270 [ 27.771351][ T372] l2tp_session_put+0xaf/0x1a0 [ 27.776098][ T372] l2tp_session_delete+0x3a9/0x4a0 [ 27.781197][ T372] pppol2tp_release+0x169/0x2b0 [ 27.786028][ T372] sock_close+0xb8/0x200 [ 27.790249][ T372] __fput+0x22b/0x900 [ 27.794210][ T372] ____fput+0x15/0x20 [ 27.798166][ T372] task_work_run+0x127/0x190 [ 27.802737][ T372] do_exit+0xb70/0x29a0 [ 27.806870][ T372] do_group_exit+0x149/0x310 [ 27.811438][ T372] get_signal+0x64f/0x1430 [ 27.815831][ T372] arch_do_signal_or_restart+0xe2/0x1100 [ 27.821439][ T372] exit_to_user_mode_loop+0xa7/0xe0 [ 27.826615][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 27.832053][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 27.837501][ T372] do_syscall_64+0x58/0xa0 [ 27.841894][ T372] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.847768][ T372] [ 27.850072][ T372] The buggy address belongs to the object at ffff88810faa4800 [ 27.850072][ T372] which belongs to the cache kmalloc-512 of size 512 [ 27.864103][ T372] The buggy address is located 336 bytes inside of [ 27.864103][ T372] 512-byte region [ffff88810faa4800, ffff88810faa4a00) [ 27.877372][ T372] The buggy address belongs to the page: [ 27.885139][ T372] page:ffffea00043ea900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10faa4 [ 27.895363][ T372] head:ffffea00043ea900 order:2 compound_mapcount:0 compound_pincount:0 [ 27.903668][ T372] flags: 0x4000000000010200(slab|head|zone=1) [ 27.909731][ T372] raw: 4000000000010200 ffffea000442c800 0000000500000005 ffff888100042f00 [ 27.918295][ T372] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 27.926851][ T372] page dumped because: kasan: bad access detected [ 27.933241][ T372] page_owner tracks the page as allocated [ 27.938945][ T372] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 103, ts 4067070672, free_ts 0 [ 27.956979][ T372] post_alloc_hook+0x192/0x1b0 [ 27.961729][ T372] prep_new_page+0x1c/0x110 [ 27.966209][ T372] get_page_from_freelist+0x2c3a/0x2cd0 [ 27.971737][ T372] __alloc_pages+0x1a2/0x460 [ 27.976304][ T372] new_slab+0xa0/0x4d0 [ 27.980347][ T372] ___slab_alloc+0x3ac/0x840 [ 27.984914][ T372] __slab_alloc+0x49/0x90 [ 27.989222][ T372] __kmalloc_track_caller+0x169/0x2c0 [ 27.994569][ T372] __alloc_skb+0x210/0x730 [ 27.998964][ T372] alloc_uevent_skb+0x85/0x240 [ 28.003713][ T372] kobject_uevent_net_broadcast+0x335/0x5a0 [ 28.009684][ T372] kobject_uevent_env+0x52b/0x700 [ 28.014691][ T372] kobject_synth_uevent+0x457/0x940 [ 28.019877][ T372] store_uevent+0x16/0x30 [ 28.024201][ T372] module_attr_store+0x5f/0x80 [ 28.028956][ T372] sysfs_kf_write+0x129/0x150 [ 28.033618][ T372] page_owner free stack trace missing [ 28.038966][ T372] [ 28.041278][ T372] Memory state around the buggy address: [ 28.046884][ T372] ffff88810faa4800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.054923][ T372] ffff88810faa4880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.062964]