Warning: Permanently added '10.128.1.165' (ED25519) to the list of known hosts. 2026/07/10 17:40:00 parsed 1 programs 2026/07/10 17:40:00 serving rpc on tcp://32883 [ 21.924994][ T24] audit: type=1400 audit(1783705200.909:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 21.945919][ T24] audit: type=1400 audit(1783705200.909:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 21.965799][ T24] audit: type=1400 audit(1783705200.909:66): avc: denied { module_request } for pid=287 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 [ 22.533277][ T24] audit: type=1400 audit(1783705201.519:67): avc: denied { mounton } for pid=293 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 [ 22.534309][ T293] cgroup: Unknown subsys name 'net' [ 22.556119][ T24] audit: type=1400 audit(1783705201.519:68): avc: denied { mount } for pid=293 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 [ 22.583523][ T24] audit: type=1400 audit(1783705201.549:69): avc: denied { unmount } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 22.583713][ T293] cgroup: Unknown subsys name 'devices' [ 22.692344][ T293] cgroup: Unknown subsys name 'hugetlb' [ 22.697960][ T293] cgroup: Unknown subsys name 'rlimit' [ 22.811402][ T24] audit: type=1400 audit(1783705201.799:70): avc: denied { setattr } for pid=293 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 22.834566][ T24] audit: type=1400 audit(1783705201.799:71): avc: denied { create } for pid=293 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 [ 22.844258][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 22.854951][ T24] audit: type=1400 audit(1783705201.799:72): avc: denied { write } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 22.883745][ T293] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 22.883805][ T24] audit: type=1400 audit(1783705201.799:73): avc: denied { read } for pid=293 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 23.260229][ T299] request_module fs-gadgetfs succeeded, but still no fs? [ 23.270971][ T299] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 23.366002][ T309] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.373362][ T309] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.380838][ T309] device bridge_slave_0 entered promiscuous mode [ 23.388497][ T309] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.395664][ T309] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.403318][ T309] device bridge_slave_1 entered promiscuous mode [ 23.436045][ T309] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.443118][ T309] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.450360][ T309] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.457402][ T309] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.473700][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 23.481360][ T59] bridge0: port 1(bridge_slave_0) entered disabled state [ 23.488574][ T59] bridge0: port 2(bridge_slave_1) entered disabled state [ 23.498318][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 23.506993][ T59] bridge0: port 1(bridge_slave_0) entered blocking state [ 23.514095][ T59] bridge0: port 1(bridge_slave_0) entered forwarding state [ 23.522501][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 23.530656][ T59] bridge0: port 2(bridge_slave_1) entered blocking state [ 23.537711][ T59] bridge0: port 2(bridge_slave_1) entered forwarding state [ 23.549675][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 23.559121][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 23.571950][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 23.583414][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 23.591515][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 23.598856][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 23.607014][ T309] device veth0_vlan entered promiscuous mode [ 23.616926][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 23.625748][ T309] device veth1_macvtap entered promiscuous mode [ 23.634476][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 23.645194][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/10 17:40:03 executed programs: 0 [ 24.315666][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.322926][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.330181][ T365] device bridge_slave_0 entered promiscuous mode [ 24.337218][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.344303][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.351831][ T365] device bridge_slave_1 entered promiscuous mode [ 24.398339][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 24.406056][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 24.414483][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 24.422812][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 24.431289][ T59] bridge0: port 1(bridge_slave_0) entered blocking state [ 24.438312][ T59] bridge0: port 1(bridge_slave_0) entered forwarding state [ 24.446434][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 24.457220][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 24.465920][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 24.474077][ T59] bridge0: port 2(bridge_slave_1) entered blocking state [ 24.481184][ T59] bridge0: port 2(bridge_slave_1) entered forwarding state [ 24.489487][ T314] device bridge_slave_1 left promiscuous mode [ 24.495678][ T314] bridge0: port 2(bridge_slave_1) entered disabled state [ 24.503312][ T314] device bridge_slave_0 left promiscuous mode [ 24.509394][ T314] bridge0: port 1(bridge_slave_0) entered disabled state [ 24.517428][ T314] device veth1_macvtap left promiscuous mode [ 24.523722][ T314] device veth0_vlan left promiscuous mode [ 24.588048][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 24.597110][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 24.609647][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 24.620920][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 24.628915][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 24.636434][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 24.644963][ T365] device veth0_vlan entered promiscuous mode [ 24.654310][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 24.663485][ T365] device veth1_macvtap entered promiscuous mode [ 24.672809][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 24.682384][ T59] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 24.702680][ T369] ================================================================== [ 24.710787][ T369] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 24.717446][ T369] Write of size 8 at addr ffff88810eb3f950 by task syz.2.17/369 [ 24.725048][ T369] [ 24.727364][ T369] CPU: 1 PID: 369 Comm: syz.2.17 Not tainted syzkaller #0 [ 24.734440][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 24.744470][ T369] Call Trace: [ 24.747735][ T369] __dump_stack+0x21/0x24 [ 24.752043][ T369] dump_stack_lvl+0x1a7/0x208 [ 24.756691][ T369] ? show_regs_print_info+0x18/0x18 [ 24.761867][ T369] ? thaw_kernel_threads+0x220/0x220 [ 24.767128][ T369] ? debug_smp_processor_id+0x17/0x20 [ 24.772472][ T369] print_address_description+0x7f/0x2c0 [ 24.777990][ T369] ? mutex_lock+0x85/0xf0 [ 24.782294][ T369] kasan_report+0x100/0x140 [ 24.786795][ T369] ? mutex_lock+0x85/0xf0 [ 24.791100][ T369] kasan_check_range+0x249/0x2a0 [ 24.796013][ T369] __kasan_check_write+0x14/0x20 [ 24.800922][ T369] mutex_lock+0x85/0xf0 [ 24.805052][ T369] ? mutex_trylock+0xb0/0xb0 [ 24.809612][ T369] ? l2tp_session_put+0xb2/0x1a0 [ 24.814523][ T369] ? l2tp_session_delete+0x3a9/0x4a0 [ 24.819778][ T369] pppol2tp_release+0x178/0x2b0 [ 24.824601][ T369] sock_close+0xb8/0x200 [ 24.828814][ T369] ? sock_mmap+0xa0/0xa0 [ 24.833032][ T369] __fput+0x2dc/0x730 [ 24.836984][ T369] ____fput+0x15/0x20 [ 24.840941][ T369] task_work_run+0x127/0x190 [ 24.845501][ T369] exit_to_user_mode_loop+0xcb/0xe0 [ 24.850667][ T369] exit_to_user_mode_prepare+0x76/0xa0 [ 24.856108][ T369] syscall_exit_to_user_mode+0x1d/0x40 [ 24.861545][ T369] do_syscall_64+0x3d/0x40 [ 24.865937][ T369] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.871801][ T369] RIP: 0033:0x7f860c1d6e59 [ 24.876188][ T369] 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 [ 24.895901][ T369] RSP: 002b:00007ffed65c32b8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 24.904296][ T369] RAX: 0000000000000000 RBX: 00007ffed65c33a0 RCX: 00007f860c1d6e59 [ 24.912248][ T369] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 24.920248][ T369] RBP: 0000000000006068 R08: 0000000000000001 R09: 0000000000000000 [ 24.928198][ T369] R10: 0000001b32c20000 R11: 0000000000000246 R12: 0000000000000000 [ 24.936143][ T369] R13: 00007f860c45efac R14: 00007f860c45efa8 R15: 00007f860c45efa0 [ 24.944091][ T369] [ 24.946390][ T369] Allocated by task 369: [ 24.952325][ T369] __kasan_kmalloc+0xd4/0x100 [ 24.957005][ T369] __kmalloc+0x19f/0x330 [ 24.961235][ T369] l2tp_session_create+0x39/0xb60 [ 24.966286][ T369] pppol2tp_connect+0xbf5/0x1640 [ 24.971206][ T369] __sys_connect+0x3ce/0x450 [ 24.975772][ T369] __x64_sys_connect+0x7a/0x90 [ 24.980518][ T369] do_syscall_64+0x31/0x40 [ 24.984929][ T369] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.990787][ T369] [ 24.993090][ T369] Freed by task 369: [ 24.996965][ T369] kasan_set_track+0x4a/0x70 [ 25.001527][ T369] kasan_set_free_info+0x23/0x40 [ 25.006436][ T369] ____kasan_slab_free+0x125/0x160 [ 25.011524][ T369] __kasan_slab_free+0x11/0x20 [ 25.016266][ T369] slab_free_freelist_hook+0xc5/0x190 [ 25.021615][ T369] kfree+0xc0/0x270 [ 25.025398][ T369] l2tp_session_put+0xb2/0x1a0 [ 25.030151][ T369] l2tp_session_delete+0x3a9/0x4a0 [ 25.035239][ T369] pppol2tp_release+0x169/0x2b0 [ 25.040062][ T369] sock_close+0xb8/0x200 [ 25.044281][ T369] __fput+0x2dc/0x730 [ 25.048235][ T369] ____fput+0x15/0x20 [ 25.052299][ T369] task_work_run+0x127/0x190 [ 25.056872][ T369] exit_to_user_mode_loop+0xcb/0xe0 [ 25.062047][ T369] exit_to_user_mode_prepare+0x76/0xa0 [ 25.067485][ T369] syscall_exit_to_user_mode+0x1d/0x40 [ 25.072941][ T369] do_syscall_64+0x3d/0x40 [ 25.077336][ T369] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.083226][ T369] [ 25.085537][ T369] The buggy address belongs to the object at ffff88810eb3f800 [ 25.085537][ T369] which belongs to the cache kmalloc-512 of size 512 [ 25.099567][ T369] The buggy address is located 336 bytes inside of [ 25.099567][ T369] 512-byte region [ffff88810eb3f800, ffff88810eb3fa00) [ 25.112810][ T369] The buggy address belongs to the page: [ 25.118438][ T369] page:ffffea00043acf00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10eb3c [ 25.128650][ T369] head:ffffea00043acf00 order:2 compound_mapcount:0 compound_pincount:0 [ 25.136952][ T369] flags: 0x4000000000010200(slab|head) [ 25.142409][ T369] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 25.150970][ T369] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 25.159611][ T369] page dumped because: kasan: bad access detected [ 25.165998][ T369] page_owner tracks the page as allocated [ 25.171708][ T369] 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 365, ts 24694308529, free_ts 24145373837 [ 25.192088][ T369] prep_new_page+0x176/0x190 [ 25.196655][ T369] get_page_from_freelist+0x225f/0x23f0 [ 25.202201][ T369] __alloc_pages_nodemask+0x29a/0x640 [ 25.207547][ T369] new_slab+0x84/0x3f0 [ 25.211590][ T369] ___slab_alloc+0x2f8/0x4c0 [ 25.216152][ T369] __slab_alloc+0x63/0xa0 [ 25.220490][ T369] __kmalloc_track_caller+0x1e4/0x310 [ 25.225856][ T369] __alloc_skb+0xdc/0x520 [ 25.230158][ T369] netlink_ack+0x35c/0xb30 [ 25.234547][ T369] netlink_rcv_skb+0x267/0x430 [ 25.239288][ T369] rtnetlink_rcv+0x1c/0x20 [ 25.243686][ T369] netlink_unicast+0x86c/0xa30 [ 25.248529][ T369] netlink_sendmsg+0x949/0xb70 [ 25.253271][ T369] __sys_sendto+0x467/0x620 [ 25.257749][ T369] __x64_sys_sendto+0xe5/0x100 [ 25.262497][ T369] do_syscall_64+0x31/0x40 [ 25.266882][ T369] page last free stack trace: [ 25.271543][ T369] free_unref_page_prepare+0x2b7/0x2d0 [ 25.276974][ T369] __free_pages+0x146/0x390 [ 25.281452][ T369] __vunmap+0x801/0x980 [ 25.285582][ T369] vfree+0x61/0x90 [ 25.289313][ T369] kcov_close+0x2b/0x50 [ 25.293443][ T369] __fput+0x2dc/0x730 [ 25.297401][ T369] ____fput+0x15/0x20 [ 25.301358][ T369] task_work_run+0x127/0x190 [ 25.305951][ T369] do_exit+0xa7c/0x24e0 [ 25.310089][ T369] do_group_exit+0x149/0x310 [ 25.314664][ T369] get_signal+0xfb1/0x1300 [ 25.319061][ T369] arch_do_signal_or_restart+0xe7/0x11b0 [ 25.324674][ T369] exit_to_user_mode_loop+0xa2/0xe0 [ 25.329859][ T369] exit_to_user_mode_prepare+0x76/0xa0 [ 25.335298][ T369] syscall_exit_to_user_mode+0x1d/0x40 [ 25.340737][ T369] do_syscall_64+0x3d/0x40 [ 25.345124][ T369] [ 25.347426][ T369] Memory state around the buggy address: [ 25.353030][ T369] ffff88810eb3f800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.361067][ T369] ffff88810eb3f880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.369102][ T369] >ffff88810eb3f900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.377147][ T369] ^ [ 25.383833][ T369] ffff88810eb3f980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.391874][ T369] ffff88810eb3fa00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.399908][ T369] ================================================================== [ 25.407942][ T369] Disabling lock debugging due to kernel taint