Warning: Permanently added '10.128.1.181' (ED25519) to the list of known hosts. 2026/10/17 10:27:20 parsed 1 programs 2026/10/17 10:27:20 serving rpc on tcp://35149 [ 29.263366][ T28] audit: type=1400 audit(1792232840.399:64): 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 [ 29.285422][ T28] audit: type=1400 audit(1792232840.399:65): 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 [ 30.178312][ T28] audit: type=1400 audit(1792232841.309:66): 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 [ 30.179462][ T300] cgroup: Unknown subsys name 'net' [ 30.202521][ T28] audit: type=1400 audit(1792232841.309:67): 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 [ 30.235624][ T28] audit: type=1400 audit(1792232841.349:68): 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 [ 30.235887][ T300] cgroup: Unknown subsys name 'devices' [ 30.381321][ T300] cgroup: Unknown subsys name 'hugetlb' [ 30.388471][ T300] cgroup: Unknown subsys name 'rlimit' [ 30.505725][ T28] audit: type=1400 audit(1792232841.639:69): avc: denied { setattr } for pid=300 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 30.533983][ T304] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 30.534394][ T28] audit: type=1400 audit(1792232841.639:70): 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 [ 30.571780][ T28] audit: type=1400 audit(1792232841.639:71): 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 [ 30.571796][ T300] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 30.605295][ T28] audit: type=1400 audit(1792232841.639:72): 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 [ 30.629770][ T28] audit: type=1400 audit(1792232841.639:73): 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 [ 31.469598][ T306] request_module fs-gadgetfs succeeded, but still no fs? [ 31.850855][ T333] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.861008][ T333] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.873227][ T333] device bridge_slave_0 entered promiscuous mode [ 31.884522][ T333] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.894677][ T333] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.904963][ T333] device bridge_slave_1 entered promiscuous mode [ 31.954752][ T333] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.965601][ T333] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.978427][ T333] bridge0: port 1(bridge_slave_0) entered blocking state [ 31.989751][ T333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 32.018243][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.027124][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.036767][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 32.046154][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 32.059158][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 32.069124][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.077414][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 32.087059][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 32.096229][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.104313][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.121415][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 32.133847][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 32.151336][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 32.163850][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 32.173567][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 32.182181][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 32.192526][ T333] device veth0_vlan entered promiscuous mode [ 32.203937][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 32.214233][ T333] device veth1_macvtap entered promiscuous mode [ 32.224694][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 32.236886][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/10/17 10:27:23 executed programs: 0 [ 32.900834][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.911436][ T368] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.923099][ T368] device bridge_slave_0 entered promiscuous mode [ 32.932938][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.941357][ T368] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.950688][ T368] device bridge_slave_1 entered promiscuous mode [ 32.993774][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.001258][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.009136][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.017579][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.038507][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.047007][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.055125][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.066360][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 33.077089][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.085485][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.096331][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 33.106092][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.115335][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.131150][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 33.143894][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 33.161960][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 33.174916][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 33.184255][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 33.192363][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 33.201472][ T368] device veth0_vlan entered promiscuous mode [ 33.213359][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 33.224106][ T368] device veth1_macvtap entered promiscuous mode [ 33.234182][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 33.246045][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 33.275173][ T372] ================================================================== [ 33.284275][ T372] BUG: KASAN: use-after-free in rcu_segcblist_enqueue+0x9c/0xb0 [ 33.292518][ T372] Write of size 8 at addr ffff88811203a190 by task syz.2.17/372 [ 33.301196][ T372] [ 33.303531][ T372] CPU: 1 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 [ 33.310643][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 33.321706][ T372] Call Trace: [ 33.325801][ T372] [ 33.329049][ T372] __dump_stack+0x21/0x24 [ 33.335684][ T372] dump_stack_lvl+0x110/0x170 [ 33.341077][ T372] ? __cfi_dump_stack_lvl+0x8/0x8 [ 33.347426][ T372] ? rcu_segcblist_enqueue+0x9c/0xb0 [ 33.353372][ T372] print_address_description+0x71/0x200 [ 33.359120][ T372] print_report+0x4a/0x60 [ 33.363604][ T372] kasan_report+0x122/0x150 [ 33.368126][ T372] ? rcu_segcblist_enqueue+0x9c/0xb0 [ 33.373620][ T372] __asan_report_store8_noabort+0x17/0x20 [ 33.379529][ T372] rcu_segcblist_enqueue+0x9c/0xb0 [ 33.384968][ T372] call_rcu+0x554/0xf50 [ 33.389492][ T372] ? __cfi_call_rcu+0x10/0x10 [ 33.394272][ T372] ? __kasan_check_write+0x14/0x20 [ 33.399865][ T372] ? selinux_inode_free_security+0x21f/0x230 [ 33.406132][ T372] security_inode_free+0xc5/0xe0 [ 33.411089][ T372] __destroy_inode+0x175/0x500 [ 33.416255][ T372] evict+0x777/0x8c0 [ 33.420468][ T372] ? proc_nr_inodes+0x2f0/0x2f0 [ 33.425422][ T372] ? _raw_spin_lock+0x94/0xf0 [ 33.430425][ T372] ? __cfi__raw_spin_lock+0x10/0x10 [ 33.435841][ T372] ? __kasan_check_write+0x14/0x20 [ 33.441456][ T372] iput+0x633/0x690 [ 33.445839][ T372] dentry_unlink_inode+0x346/0x3f0 [ 33.451242][ T372] __dentry_kill+0x46c/0x680 [ 33.456153][ T372] dentry_kill+0xc0/0x2a0 [ 33.460797][ T372] dput+0x42/0x80 [ 33.465934][ T372] __fput+0x5c0/0x8f0 [ 33.471193][ T372] ____fput+0x15/0x20 [ 33.477584][ T372] task_work_run+0x1e1/0x250 [ 33.482633][ T372] ? __cfi_task_work_run+0x10/0x10 [ 33.488481][ T372] ? __cfi___close_range+0x10/0x10 [ 33.494462][ T372] exit_to_user_mode_loop+0x9b/0xb0 [ 33.500759][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 33.508429][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 33.516801][ T372] do_syscall_64+0x58/0xa0 [ 33.522308][ T372] ? clear_bhb_loop+0x30/0x80 [ 33.529857][ T372] ? clear_bhb_loop+0x30/0x80 [ 33.535738][ T372] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.542500][ T372] RIP: 0033:0x7fc6fb59e559 [ 33.547356][ 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 [ 33.571162][ T372] RSP: 002b:00007fff453ef618 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 33.582596][ T372] RAX: 0000000000000000 RBX: 00007fff453ef700 RCX: 00007fc6fb59e559 [ 33.594336][ T372] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 33.603127][ T372] RBP: 00000000000081e7 R08: 0000000000000001 R09: 0000000000000000 [ 33.613146][ T372] R10: 0000001b32f20000 R11: 0000000000000246 R12: 0000000000000000 [ 33.622311][ T372] R13: 00007fc6fb825fac R14: 00007fc6fb825fa8 R15: 00007fc6fb825fa0 [ 33.630673][ T372] [ 33.633900][ T372] [ 33.636654][ T372] Allocated by task 372: [ 33.641521][ T372] kasan_set_track+0x4b/0x70 [ 33.648065][ T372] kasan_save_alloc_info+0x1f/0x30 [ 33.653737][ T372] __kasan_kmalloc+0x95/0xb0 [ 33.658982][ T372] __kmalloc+0xb4/0x1e0 [ 33.663871][ T372] l2tp_session_create+0x38/0xbd0 [ 33.670068][ T372] pppol2tp_connect+0xbf5/0x1640 [ 33.675126][ T372] __sys_connect+0x3da/0x460 [ 33.679741][ T372] __x64_sys_connect+0x7a/0x90 [ 33.684547][ T372] x64_sys_call+0x88d/0x9a0 [ 33.689135][ T372] do_syscall_64+0x4c/0xa0 [ 33.693550][ T372] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.700246][ T372] [ 33.702598][ T372] Freed by task 339: [ 33.706864][ T372] kasan_set_track+0x4b/0x70 [ 33.711782][ T372] kasan_save_free_info+0x2b/0x40 [ 33.717062][ T372] ____kasan_slab_free+0x132/0x180 [ 33.722547][ T372] __kasan_slab_free+0x11/0x20 [ 33.727676][ T372] slab_free_freelist_hook+0xc2/0x190 [ 33.733508][ T372] __kmem_cache_free+0xb7/0x1b0 [ 33.738487][ T372] kfree+0x6f/0xf0 [ 33.742772][ T372] l2tp_session_put+0xaf/0x1a0 [ 33.748345][ T372] l2tp_session_delete+0x3df/0x4d0 [ 33.755241][ T372] l2tp_tunnel_del_work+0x199/0x410 [ 33.762084][ T372] process_one_work+0x717/0xc30 [ 33.767195][ T372] worker_thread+0xa4d/0x11d0 [ 33.772115][ T372] kthread+0x281/0x320 [ 33.776380][ T372] ret_from_fork+0x1f/0x30 [ 33.781295][ T372] [ 33.783974][ T372] Last potentially related work creation: [ 33.789959][ T372] kasan_save_stack+0x3a/0x60 [ 33.795224][ T372] __kasan_record_aux_stack+0xb6/0xc0 [ 33.801505][ T372] kasan_record_aux_stack_noalloc+0xb/0x10 [ 33.807855][ T372] call_rcu+0xcf/0xf50 [ 33.811942][ T372] pppol2tp_release+0x1e3/0x2b0 [ 33.817330][ T372] sock_close+0xc9/0x220 [ 33.822218][ T372] __fput+0x1fd/0x8f0 [ 33.826591][ T372] ____fput+0x15/0x20 [ 33.830812][ T372] task_work_run+0x1e1/0x250 [ 33.836904][ T372] exit_to_user_mode_loop+0x9b/0xb0 [ 33.842890][ T372] exit_to_user_mode_prepare+0x87/0xd0 [ 33.849762][ T372] syscall_exit_to_user_mode+0x1a/0x30 [ 33.855588][ T372] do_syscall_64+0x58/0xa0 [ 33.860431][ T372] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.866349][ T372] [ 33.868778][ T372] The buggy address belongs to the object at ffff88811203a000 [ 33.868778][ T372] which belongs to the cache kmalloc-512 of size 512 [ 33.883958][ T372] The buggy address is located 400 bytes inside of [ 33.883958][ T372] 512-byte region [ffff88811203a000, ffff88811203a200) [ 33.899479][ T372] [ 33.901890][ T372] The buggy address belongs to the physical page: [ 33.908472][ T372] page:ffffea0004480e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112038 [ 33.918888][ T372] head:ffffea0004480e00 order:2 compound_mapcount:0 compound_pincount:0 [ 33.927869][ T372] flags: 0x4000000000010200(slab|head|zone=1) [ 33.934129][ T372] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 33.944360][ T372] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 33.954572][ T372] page dumped because: kasan: bad access detected [ 33.962540][ T372] page_owner tracks the page as allocated [ 33.968623][ T372] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 39, tgid 39 (kworker/1:1), ts 33269228795, free_ts 32096678486 [ 33.994891][ T372] post_alloc_hook+0x1f5/0x210 [ 34.001360][ T372] prep_new_page+0x1c/0x110 [ 34.008762][ T372] get_page_from_freelist+0x2ca9/0x2d20 [ 34.014625][ T372] __alloc_pages+0x1fa/0x610 [ 34.019869][ T372] alloc_slab_page+0x6e/0xf0 [ 34.025287][ T372] new_slab+0x98/0x3e0 [ 34.030966][ T372] ___slab_alloc+0x70f/0xb70 [ 34.036314][ T372] __slab_alloc+0x5e/0xa0 [ 34.041598][ T372] __kmem_cache_alloc_node+0x204/0x2d0 [ 34.047518][ T372] __kmalloc+0xa4/0x1e0 [ 34.053025][ T372] ___neigh_create+0x6e3/0x1db0 [ 34.058338][ T372] __neigh_create+0x31/0x40 [ 34.063407][ T372] ip6_finish_output2+0xaaf/0x18b0 [ 34.069691][ T372] ip6_finish_output+0x60b/0xbe0 [ 34.076841][ T372] ip6_output+0x1fa/0x410 [ 34.082159][ T372] mld_sendpack+0x7ce/0xda0 [ 34.087364][ T372] page last free stack trace: [ 34.092520][ T372] free_unref_page_prepare+0x81b/0x820 [ 34.100110][ T372] free_unref_page+0x93/0x530 [ 34.106237][ T372] __free_pages+0x67/0x100 [ 34.111246][ T372] __free_slab+0xc7/0x1a0 [ 34.115892][ T372] __unfreeze_partials+0x15a/0x190 [ 34.121483][ T372] put_cpu_partial+0xa9/0x100 [ 34.127782][ T372] __slab_free+0x1c4/0x280 [ 34.132456][ T372] ___cache_free+0xbf/0xd0 [ 34.138046][ T372] qlist_free_all+0xc6/0x140 [ 34.143844][ T372] kasan_quarantine_reduce+0x14a/0x170 [ 34.150778][ T372] __kasan_slab_alloc+0x24/0x80 [ 34.157327][ T372] slab_post_alloc_hook+0x4f/0x2d0 [ 34.163168][ T372] __kmem_cache_alloc_node+0x194/0x2d0 [ 34.169360][ T372] __kmalloc_node+0xa2/0x1e0 [ 34.174709][ T372] kvmalloc_node+0x28a/0x460 [ 34.179420][ T372] rht_deferred_worker+0x30b/0x15d0 [ 34.185337][ T372] [ 34.187673][ T372] Memory state around the buggy address: [ 34.193590][ T372] ffff88811203a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.203570][ T372] ffff88811203a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.213231][ T372] >ffff88811203a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.222326][ T372] ^ [ 34.227225][ T372] ffff88811203a200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.236583][ T372] ffff88811203a280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 34.245526][ T372] ================================================================== [ 34.255425][ T372] Disabling lock debugging due to kernel taint [ 34.275775][ T28] kauditd_printk_skb: 35 callbacks suppressed [ 34.275788][ T28] audit: type=1400 audit(1792232845.409:109): avc: denied { read } for pid=84 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 34.307174][ T28] audit: type=1400 audit(1792232845.419:110): avc: denied { search } for pid=84 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 34.336461][ T28] audit: type=1400 audit(1792232845.419:111): avc: denied { write } for pid=84 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 34.362006][ T28] audit: type=1400 audit(1792232845.419:112): avc: denied { add_name } for pid=84 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 34.392527][ T28] audit: type=1400 audit(1792232845.419:113): avc: denied { create } for pid=84 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 34.414763][ T28] audit: type=1400 audit(1792232845.419:114): avc: denied { append open } for pid=84 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 34.439997][ T28] audit: type=1400 audit(1792232845.419:115): avc: denied { getattr } for pid=84 comm="syslogd" path="/tmp/messages" dev="tmpfs" i