cess permissive=1 [ 21.853216][ T36] audit: type=1400 audit(1785118233.050:63): avc: denied { siginh } for pid=275 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.5' (ED25519) to the list of known hosts. 2026/07/27 02:10:48 parsed 1 programs 2026/07/27 02:10:48 serving rpc on tcp://37065 [ 37.464418][ T36] audit: type=1400 audit(1785118248.670:64): avc: denied { node_bind } for pid=303 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 39.006360][ T36] audit: type=1400 audit(1785118250.210:65): avc: denied { mounton } for pid=310 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 [ 39.009794][ T310] cgroup: Unknown subsys name 'net' [ 39.029210][ T36] audit: type=1400 audit(1785118250.210:66): avc: denied { mount } for pid=310 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 [ 39.056630][ T36] audit: type=1400 audit(1785118250.250:67): avc: denied { unmount } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 39.057098][ T310] cgroup: Unknown subsys name 'devices' [ 39.182883][ T310] cgroup: Unknown subsys name 'hugetlb' [ 39.188541][ T310] cgroup: Unknown subsys name 'rlimit' [ 39.293831][ T36] audit: type=1400 audit(1785118250.500:68): avc: denied { setattr } for pid=310 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 39.317043][ T36] audit: type=1400 audit(1785118250.500:69): avc: denied { create } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 39.337483][ T36] audit: type=1400 audit(1785118250.500:70): avc: denied { write } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 39.357952][ T36] audit: type=1400 audit(1785118250.500:71): avc: denied { read } for pid=310 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 [ 39.378385][ T36] audit: type=1400 audit(1785118250.500:72): avc: denied { sys_module } for pid=310 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 39.389617][ T313] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 39.399994][ T36] audit: type=1400 audit(1785118250.500:73): avc: denied { mounton } for pid=310 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 [ 39.474327][ T310] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 40.399183][ T316] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 40.992362][ T352] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.999463][ T352] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.006626][ T352] bridge_slave_0: entered allmulticast mode [ 41.012990][ T352] bridge_slave_0: entered promiscuous mode [ 41.019721][ T352] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.026920][ T352] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.034087][ T352] bridge_slave_1: entered allmulticast mode [ 41.040382][ T352] bridge_slave_1: entered promiscuous mode [ 41.113091][ T352] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.120210][ T352] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.127645][ T352] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.134767][ T352] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.160567][ T325] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.167822][ T325] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.182551][ T325] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.189652][ T325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.197560][ T325] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.204668][ T325] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.232392][ T352] veth0_vlan: entered promiscuous mode [ 41.245532][ T352] veth1_macvtap: entered promiscuous mode [ 41.304509][ T44] bridge_slave_1: left allmulticast mode [ 41.310212][ T44] bridge_slave_1: left promiscuous mode [ 41.315924][ T44] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.323871][ T44] bridge_slave_0: left allmulticast mode [ 41.329567][ T44] bridge_slave_0: left promiscuous mode [ 41.335303][ T44] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.433345][ T44] veth1_macvtap: left promiscuous mode [ 41.438941][ T44] veth0_vlan: left promiscuous mode 2026/07/27 02:10:53 executed programs: 0 [ 42.003233][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.010322][ T379] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.017480][ T379] bridge_slave_0: entered allmulticast mode [ 42.023928][ T379] bridge_slave_0: entered promiscuous mode [ 42.030765][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.038107][ T379] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.045551][ T379] bridge_slave_1: entered allmulticast mode [ 42.051951][ T379] bridge_slave_1: entered promiscuous mode [ 42.103180][ T379] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.110253][ T379] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.117644][ T379] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.124778][ T379] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.150248][ T44] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.157793][ T44] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.171754][ T356] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.179093][ T356] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.187423][ T356] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.194650][ T356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.219586][ T379] veth0_vlan: entered promiscuous mode [ 42.231632][ T379] veth1_macvtap: entered promiscuous mode [ 42.264746][ T383] ================================================================== [ 42.273060][ T383] BUG: KASAN: invalid-free in f_uac1_opts_c_srate_store+0x224/0x2b0 [ 42.281106][ T383] Free of addr ffff88810df83593 by task syz.2.17/383 [ 42.287889][ T383] [ 42.290249][ T383] CPU: 0 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 a4a563d0c71b2f3eba821a1af94cbf4bdc8174ca [ 42.290273][ T383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 42.290292][ T383] Call Trace: [ 42.290300][ T383] [ 42.290309][ T383] __dump_stack+0x21/0x30 [ 42.290339][ T383] dump_stack_lvl+0x140/0x1c0 [ 42.290364][ T383] ? __cfi_dump_stack_lvl+0x10/0x10 [ 42.290391][ T383] print_address_description+0x71/0x210 [ 42.290417][ T383] print_report+0x4a/0x70 [ 42.290498][ T383] ? f_uac1_opts_c_srate_store+0x224/0x2b0 [ 42.290532][ T383] kasan_report_invalid_free+0x11e/0x160 [ 42.290563][ T383] ? f_uac1_opts_c_srate_store+0x224/0x2b0 [ 42.290594][ T383] ? f_uac1_opts_c_srate_store+0x224/0x2b0 [ 42.290625][ T383] check_slab_allocation+0xdf/0xf0 [ 42.290653][ T383] __kasan_slab_pre_free+0x36/0x50 [ 42.290681][ T383] kfree+0xf8/0x440 [ 42.290702][ T383] ? f_uac1_opts_c_srate_store+0x224/0x2b0 [ 42.290734][ T383] f_uac1_opts_c_srate_store+0x224/0x2b0 [ 42.290765][ T383] ? __cfi_f_uac1_opts_c_srate_store+0x10/0x10 [ 42.290793][ T383] ? down_read+0x7f/0xe0 [ 42.290840][ T383] ? __cfi_down_read+0x10/0x10 [ 42.290883][ T383] configfs_write_iter+0x32c/0x490 [ 42.290905][ T383] ? __cfi_f_uac1_opts_c_srate_store+0x10/0x10 [ 42.290930][ T383] vfs_write+0x762/0xfd0 [ 42.290949][ T383] ? __cfi_vfs_write+0x10/0x10 [ 42.290966][ T383] ? __cfi_do_futex+0x10/0x10 [ 42.290992][ T383] ? __kasan_check_read+0x15/0x20 [ 42.291010][ T383] ksys_write+0x145/0x260 [ 42.291028][ T383] ? __cfi_ksys_write+0x10/0x10 [ 42.291046][ T383] ? __kasan_check_read+0x15/0x20 [ 42.291063][ T383] __x64_sys_write+0x7f/0x90 [ 42.291081][ T383] x64_sys_call+0x271c/0x2ee0 [ 42.291100][ T383] do_syscall_64+0x57/0xf0 [ 42.291119][ T383] ? clear_bhb_loop+0x50/0xa0 [ 42.291143][ T383] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 42.291166][ T383] RIP: 0033:0x7fadf0b9de99 [ 42.291182][ T383] 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 [ 42.291197][ T383] RSP: 002b:00007ffd46b93468 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 42.291222][ T383] RAX: ffffffffffffffda RBX: 00007fadf0e25fa0 RCX: 00007fadf0b9de99 [ 42.291236][ T383] RDX: 0000000000000029 RSI: 0000200000000040 RDI: 0000000000000003 [ 42.291247][ T383] RBP: 00007fadf0c33eaf R08: 0000000000000000 R09: 0000000000000000 [ 42.291258][ T383] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 42.291269][ T383] R13: 00007fadf0e25fac R14: 00007fadf0e25fa0 R15: 00007fadf0e25fa0 [ 42.291284][ T383] [ 42.291291][ T383] [ 42.555203][ T383] Allocated by task 383: [ 42.559468][ T383] kasan_save_track+0x3e/0x80 [ 42.564157][ T383] kasan_save_alloc_info+0x3a/0x50 [ 42.569290][ T383] __kasan_kmalloc+0x96/0xb0 [ 42.574163][ T383] __kmalloc_node_track_caller_noprof+0x24e/0x4f0 [ 42.580606][ T383] kstrdup+0x4d/0x130 [ 42.584637][ T383] f_uac1_opts_c_srate_store+0x11e/0x2b0 [ 42.590329][ T383] configfs_write_iter+0x32c/0x490 [ 42.595467][ T383] vfs_write+0x762/0xfd0 [ 42.599813][ T383] ksys_write+0x145/0x260 [ 42.604164][ T383] __x64_sys_write+0x7f/0x90 [ 42.608817][ T383] x64_sys_call+0x271c/0x2ee0 [ 42.613547][ T383] do_syscall_64+0x57/0xf0 [ 42.617978][ T383] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 42.623970][ T383] [ 42.626298][ T383] The buggy address belongs to the object at ffff88810df83580 [ 42.626298][ T383] which belongs to the cache kmalloc-64 of size 64 [ 42.640187][ T383] The buggy address is located 19 bytes inside of [ 42.640187][ T383] 42-byte region [ffff88810df83580, ffff88810df835aa) [ 42.653308][ T383] [ 42.655655][ T383] The buggy address belongs to the physical page: [ 42.662097][ T383] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10df83 [ 42.670951][ T383] flags: 0x4000000000000000(zone=1) [ 42.676169][ T383] page_type: f5(slab) [ 42.680260][ T383] raw: 4000000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 42.688902][ T383] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 42.697507][ T383] page dumped because: kasan: bad access detected [ 42.703947][ T383] page_owner tracks the page as allocated [ 42.709679][ T383] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x152cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 379, tgid 379 (syz-executor), ts 42256493503, free_ts 42256318391 [ 42.728705][ T383] post_alloc_hook+0x37d/0x3b0 [ 42.733499][ T383] prep_new_page+0x2d/0x180 [ 42.738022][ T383] get_page_from_freelist+0x4aea/0x4ba0 [ 42.743606][ T383] __alloc_pages_noprof+0x35a/0x7e0 [ 42.748830][ T383] alloc_slab_page+0x6b/0x1e0 [ 42.753554][ T383] allocate_slab+0x69/0x430 [ 42.758097][ T383] ___slab_alloc+0x591/0x8c0 [ 42.762707][ T383] __kmalloc_node_noprof+0x2e7/0x500 [ 42.768017][ T383] __kvmalloc_node_noprof+0x128/0x300 [ 42.773417][ T383] nf_hook_entries_grow+0x284/0x740 [ 42.778825][ T383] nf_hook_entries_insert_raw+0x52/0x310 [ 42.784475][ T383] nf_nat_register_fn+0x219/0x640 [ 42.789528][ T383] nf_nat_ipv4_register_fn+0x4f/0x70 [ 42.794839][ T383] iptable_nat_table_init+0x247/0x3d0 [ 42.800550][ T383] xt_find_table_lock+0x36c/0x460 [ 42.805615][ T383] xt_request_find_table_lock+0x2b/0x100 [ 42.811378][ T383] page last free pid 379 tgid 379 stack trace: [ 42.817557][ T383] free_unref_page+0xbb8/0xf70 [ 42.822355][ T383] __free_pages+0x6b/0x3b0 [ 42.826815][ T383] vfree+0x3ea/0x5b0 [ 42.830762][ T383] do_ipt_get_ctl+0xef6/0x1210 [ 42.835555][ T383] nf_getsockopt+0x28b/0x2b0 [ 42.840167][ T383] ip_getsockopt+0x15b/0x200 [ 42.844782][ T383] tcp_getsockopt+0x103/0x130 [ 42.849486][ T383] sock_common_getsockopt+0xb2/0xd0 [ 42.854713][ T383] do_sock_getsockopt+0x3a4/0x6c0 [ 42.859769][ T383] __x64_sys_getsockopt+0x1d4/0x280 [ 42.865029][ T383] x64_sys_call+0x10db/0x2ee0 [ 42.869727][ T383] do_syscall_64+0x57/0xf0 [ 42.874169][ T383] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 42.880090][ T383] [ 42.882427][ T383] Memory state around the buggy address: [ 42.888108][ T383] ffff88810df83480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.896271][ T383] ffff88810df83500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 42.904351][ T383] >ffff88810df83580: 00 00 00 00 00 02 fc fc fc fc fc fc fc fc fc fc [ 42.912422][ T383] ^ [ 42.917036][ T383] ffff88810df83600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.925110][ T383] ffff88810df83680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 42.933185][ T383] ================================================================== [ 42.941870][ T383] Disabling lock debugging due to kernel taint [ 42.954070][ T36] kauditd_printk_skb: 38 callbacks suppressed [ 42.954088][ T36] audit: type=1400 audit(1785118254.160:112): avc: denied { unmount } for pid=379 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 42.985276][ T36] audit: type=1400 audit(1785118254.190:113): avc: denied { read } for pid=93 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 [ 43.007290][ T36] audit: type=1400 audit(1785118254.190:114): avc: denied { search } for pid=93 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 [ 43.029137][ T36] audit: type=1400 audit(1785118254.190:115): avc: denied { write } for pid=93 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 [ 43.050906][ T36] audit: type=1400 audit(1785118254.190:116): avc: denied { add_name } for pid=93 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 43.072907][ T36] audit: type=1400 audit(1785118254.190:117): avc: denied { create } for pid=93 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 43.094139][ T36] audit: type=1400 audit(1785118254.190:118): avc: denied { append open } for pid=93 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 [ 43.117232][ T36] audit: type=1400 audit(1785118254.190:119): avc: denied { getattr } for pid=93 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 [ 43.153126][ T12] bridge_slave_1: left allmulticast mode [ 43.158845][ T12] bridge_slave_1: left promiscuous mode [ 43.164785][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.172661][ T12] bridge_slave_0: left allmulticast mode [ 43.178334][ T12] bridge_slave_0: left promiscuous mode [ 43.184288][ T12] bridge0: port 1(bridge_slave_0) entered disabled state