Warning: Permanently added '10.128.1.146' (ED25519) to the list of known hosts. 2026/07/23 23:08:36 parsed 1 programs 2026/07/23 23:08:36 serving rpc on tcp://37569 [ 24.951913][ T30] audit: type=1400 audit(1784848116.683:64): 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 [ 24.972647][ T30] audit: type=1400 audit(1784848116.683:65): 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 [ 25.898039][ T30] audit: type=1400 audit(1784848117.633:66): 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 [ 25.901349][ T299] cgroup: Unknown subsys name 'net' [ 25.920928][ T30] audit: type=1400 audit(1784848117.633:67): 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 [ 25.948207][ T30] audit: type=1400 audit(1784848117.663:68): 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 [ 25.948601][ T299] cgroup: Unknown subsys name 'devices' [ 26.087641][ T299] cgroup: Unknown subsys name 'hugetlb' [ 26.093258][ T299] cgroup: Unknown subsys name 'rlimit' [ 26.268804][ T30] audit: type=1400 audit(1784848118.003:69): 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 [ 26.292401][ T30] audit: type=1400 audit(1784848118.003:70): 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 [ 26.312818][ T30] audit: type=1400 audit(1784848118.003:71): 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 [ 26.333133][ T30] audit: type=1400 audit(1784848118.003:72): 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 [ 26.353338][ T30] audit: type=1400 audit(1784848118.003:73): 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 [ 26.382342][ T303] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.418222][ T299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.847800][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 27.119539][ T332] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.126754][ T332] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.134105][ T332] device bridge_slave_0 entered promiscuous mode [ 27.141019][ T332] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.148236][ T332] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.155558][ T332] device bridge_slave_1 entered promiscuous mode [ 27.197152][ T332] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.204194][ T332] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.211563][ T332] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.218636][ T332] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.236968][ T325] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.244356][ T325] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.252026][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 27.259497][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.269120][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.277357][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.284390][ T325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.292950][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.301132][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.308185][ T325] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.321960][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.332584][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.350250][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.361267][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.369318][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.376902][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.384886][ T332] device veth0_vlan entered promiscuous mode [ 27.395916][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.404852][ T332] device veth1_macvtap entered promiscuous mode [ 27.413837][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.427026][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/23 23:08:39 executed programs: 0 [ 28.013545][ T366] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.021088][ T366] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.028792][ T366] device bridge_slave_0 entered promiscuous mode [ 28.036461][ T366] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.043527][ T366] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.051211][ T366] device bridge_slave_1 entered promiscuous mode [ 28.094320][ T366] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.101471][ T366] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.108776][ T366] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.115829][ T366] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.127179][ T325] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.134543][ T325] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.152055][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 28.159524][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.168298][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 28.176833][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.184920][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.191977][ T325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.200285][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 28.208767][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.216974][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.224009][ T325] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.234954][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 28.243107][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.251935][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 28.260043][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.272622][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 28.280961][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.292582][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 28.300551][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.308729][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.316363][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.329794][ T366] device veth0_vlan entered promiscuous mode [ 28.339077][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 28.347198][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.356464][ T366] device veth1_macvtap entered promiscuous mode [ 28.364909][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 28.372930][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 28.381285][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.390598][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 28.398859][ T325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.526364][ T371] ================================================================== [ 28.534569][ T371] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 28.541462][ T371] Write of size 8 at addr ffff888122aca150 by task syz.2.17/371 [ 28.549103][ T371] [ 28.551443][ T371] CPU: 1 PID: 371 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.558568][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 28.568786][ T371] Call Trace: [ 28.572083][ T371] [ 28.575033][ T371] __dump_stack+0x21/0x30 [ 28.579378][ T371] dump_stack_lvl+0x110/0x170 [ 28.584077][ T371] ? show_regs_print_info+0x20/0x20 [ 28.589290][ T371] ? load_image+0x3f0/0x3f0 [ 28.593812][ T371] print_address_description+0x7f/0x2c0 [ 28.599362][ T371] ? mutex_lock+0x8e/0x1c0 [ 28.603799][ T371] kasan_report+0x10f/0x150 [ 28.608312][ T371] ? mutex_lock+0x8e/0x1c0 [ 28.612736][ T371] kasan_check_range+0x249/0x2a0 [ 28.617694][ T371] __kasan_check_write+0x14/0x20 [ 28.622639][ T371] mutex_lock+0x8e/0x1c0 [ 28.626897][ T371] ? wait_for_completion_killable_timeout+0x10/0x10 [ 28.633505][ T371] ? l2tp_session_put+0xaf/0x1a0 [ 28.638465][ T371] ? l2tp_session_delete+0x3a9/0x4a0 [ 28.643764][ T371] pppol2tp_release+0x178/0x2b0 [ 28.648619][ T371] sock_close+0xb8/0x200 [ 28.652873][ T371] ? sock_mmap+0xa0/0xa0 [ 28.657128][ T371] __fput+0x22b/0x900 [ 28.661122][ T371] ____fput+0x15/0x20 [ 28.665143][ T371] task_work_run+0x127/0x190 [ 28.669745][ T371] do_exit+0xb70/0x29a0 [ 28.673914][ T371] ? put_task_struct+0x90/0x90 [ 28.678681][ T371] ? __remove_hrtimer+0x14d/0x3d0 [ 28.683710][ T371] ? __kasan_check_write+0x14/0x20 [ 28.688830][ T371] ? _raw_spin_lock_irq+0x95/0xf0 [ 28.693870][ T371] do_group_exit+0x149/0x310 [ 28.698473][ T371] ? __kasan_check_write+0x14/0x20 [ 28.703656][ T371] ? recalc_sigpending+0x1c4/0x230 [ 28.708796][ T371] get_signal+0x64f/0x1430 [ 28.713215][ T371] ? usleep_range_state+0x130/0x130 [ 28.718422][ T371] arch_do_signal_or_restart+0xe2/0x1100 [ 28.724066][ T371] ? nanosleep_copyout+0x120/0x120 [ 28.729184][ T371] ? __remove_hrtimer+0x3d0/0x3d0 [ 28.734221][ T371] ? get_timespec64+0x116/0x1b0 [ 28.739085][ T371] ? get_sigframe_size+0x10/0x10 [ 28.744036][ T371] ? __x64_sys_clock_nanosleep+0xb0/0xb0 [ 28.749676][ T371] exit_to_user_mode_loop+0xa7/0xe0 [ 28.754881][ T371] exit_to_user_mode_prepare+0x87/0xd0 [ 28.760347][ T371] syscall_exit_to_user_mode+0x1a/0x30 [ 28.765816][ T371] do_syscall_64+0x58/0xa0 [ 28.770239][ T371] ? clear_bhb_loop+0x50/0xa0 [ 28.774927][ T371] ? clear_bhb_loop+0x50/0xa0 [ 28.779618][ T371] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.785515][ T371] RIP: 0033:0x7f52b2768017 [ 28.789940][ T371] Code: Unable to access opcode bytes at RIP 0x7f52b2767fed. [ 28.797311][ T371] RSP: 002b:00007ffd09847a10 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 [ 28.805743][ T371] RAX: fffffffffffffdfc RBX: 000055557821f500 RCX: 00007f52b2768017 [ 28.813727][ T371] RDX: 00007ffd09847a50 RSI: 0000000000000000 RDI: 0000000000000000 [ 28.821712][ T371] RBP: 00007f52b2842eaf R08: 0000000000000000 R09: 0000000000000000 [ 28.829689][ T371] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 28.837674][ T371] R13: 00007f52b2a34fac R14: 00007f52b2a34fa0 R15: 00007f52b2a34fa0 [ 28.845653][ T371] [ 28.848679][ T371] [ 28.851011][ T371] Allocated by task 370: [ 28.855261][ T371] __kasan_kmalloc+0xd4/0x100 [ 28.859962][ T371] __kmalloc+0x13d/0x2c0 [ 28.864227][ T371] l2tp_session_create+0x39/0xb60 [ 28.869262][ T371] pppol2tp_connect+0xbf5/0x1640 [ 28.874209][ T371] __sys_connect+0x3cb/0x450 [ 28.878827][ T371] __x64_sys_connect+0x7a/0x90 [ 28.883597][ T371] x64_sys_call+0x7c/0x9a0 [ 28.888025][ T371] do_syscall_64+0x4c/0xa0 [ 28.892449][ T371] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 28.898350][ T371] [ 28.900683][ T371] Freed by task 371: [ 28.904575][ T371] kasan_set_track+0x4a/0x70 [ 28.909178][ T371] kasan_set_free_info+0x23/0x40 [ 28.914122][ T371] ____kasan_slab_free+0x125/0x160 [ 28.919239][ T371] __kasan_slab_free+0x11/0x20 [ 28.924008][ T371] slab_free_freelist_hook+0xc2/0x190 [ 28.929396][ T371] kfree+0xc4/0x270 [ 28.933356][ T371] l2tp_session_put+0xaf/0x1a0 [ 28.938140][ T371] l2tp_session_delete+0x3a9/0x4a0 [ 28.943262][ T371] pppol2tp_release+0x169/0x2b0 [ 28.948123][ T371] sock_close+0xb8/0x200 [ 28.952374][ T371] __fput+0x22b/0x900 [ 28.956364][ T371] ____fput+0x15/0x20 [ 28.960376][ T371] task_work_run+0x127/0x190 [ 28.964986][ T371] do_exit+0xb70/0x29a0 [ 28.969154][ T371] do_group_exit+0x149/0x310 [ 28.973757][ T371] get_signal+0x64f/0x1430 [ 28.978190][ T371] arch_do_signal_or_restart+0xe2/0x1100 [ 28.983835][ T371] exit_to_user_mode_loop+0xa7/0xe0 [ 28.989100][ T371] exit_to_user_mode_prepare+0x87/0xd0 [ 28.994674][ T371] syscall_exit_to_user_mode+0x1a/0x30 [ 29.000156][ T371] do_syscall_64+0x58/0xa0 [ 29.004594][ T371] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 29.010526][ T371] [ 29.012854][ T371] The buggy address belongs to the object at ffff888122aca000 [ 29.012854][ T371] which belongs to the cache kmalloc-512 of size 512 [ 29.026998][ T371] The buggy address is located 336 bytes inside of [ 29.026998][ T371] 512-byte region [ffff888122aca000, ffff888122aca200) [ 29.040363][ T371] The buggy address belongs to the page: [ 29.046016][ T371] page:ffffea00048ab200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122ac8 [ 29.056263][ T371] head:ffffea00048ab200 order:2 compound_mapcount:0 compound_pincount:0 [ 29.064594][ T371] flags: 0x4000000000010200(slab|head|zone=1) [ 29.070674][ T371] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 29.079276][ T371] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 29.087873][ T371] page dumped because: kasan: bad access detected [ 29.094295][ T371] page_owner tracks the page as allocated [ 29.100030][ T371] 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 366, ts 28417224004, free_ts 27782476075 [ 29.120445][ T371] post_alloc_hook+0x192/0x1b0 [ 29.125225][ T371] prep_new_page+0x1c/0x110 [ 29.129741][ T371] get_page_from_freelist+0x2c3a/0x2cd0 [ 29.135294][ T371] __alloc_pages+0x1a2/0x460 [ 29.139898][ T371] new_slab+0xa0/0x4d0 [ 29.143982][ T371] ___slab_alloc+0x3ac/0x840 [ 29.148581][ T371] __slab_alloc+0x49/0x90 [ 29.152925][ T371] __kmalloc_track_caller+0x169/0x2c0 [ 29.158310][ T371] __alloc_skb+0x210/0x730 [ 29.162751][ T371] netlink_ack+0x35c/0xb10 [ 29.167174][ T371] netlink_rcv_skb+0x267/0x430 [ 29.171948][ T371] rtnetlink_rcv+0x1c/0x20 [ 29.176379][ T371] netlink_unicast+0x86c/0xa30 [ 29.181154][ T371] netlink_sendmsg+0x879/0xb80 [ 29.186010][ T371] __sys_sendto+0x46d/0x620 [ 29.190516][ T371] __x64_sys_sendto+0xe5/0x100 [ 29.195405][ T371] page last free stack trace: [ 29.200085][ T371] free_unref_page_prepare+0x5fa/0x600 [ 29.205550][ T371] free_unref_page+0xae/0x540 [ 29.210232][ T371] __free_pages+0x6c/0x100 [ 29.214667][ T371] __vunmap+0x801/0x980 [ 29.218924][ T371] vfree+0x8b/0xc0 [ 29.222655][ T371] kcov_close+0x2b/0x50 [ 29.226823][ T371] __fput+0x22b/0x900 [ 29.230823][ T371] ____fput+0x15/0x20 [ 29.234907][ T371] task_work_run+0x127/0x190 [ 29.239505][ T371] do_exit+0xb70/0x29a0 [ 29.243669][ T371] do_group_exit+0x149/0x310 [ 29.248287][ T371] get_signal+0x64f/0x1430 [ 29.252721][ T371] arch_do_signal_or_restart+0xe2/0x1100 [ 29.258364][ T371] exit_to_user_mode_loop+0xa7/0xe0 [ 29.263568][ T371] exit_to_user_mode_prepare+0x87/0xd0 [ 29.269032][ T371] syscall_exit_to_user_mode+0x1a/0x30 [ 29.274501][ T371] [ 29.276846][ T371] Memory state around the buggy address: [ 29.282476][ T371] ffff888122aca000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.290542][ T371] ffff888122aca080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.298613][ T371] >ffff888122aca100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.306679][ T371] ^ [ 29.313365][ T371] ffff888122aca180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.321435][ T371] ffff888122aca200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 2