./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1470457848 <...> Warning: Permanently added '10.128.0.130' (ED25519) to the list of known hosts. execve("./syz-executor1470457848", ["./syz-executor1470457848"], 0x7ffdd83e6b60 /* 10 vars */) = 0 brk(NULL) = 0x55556987d000 brk(0x55556987dd00) = 0x55556987dd00 arch_prctl(ARCH_SET_FS, 0x55556987d380) = 0 set_tid_address(0x55556987d650) = 288 set_robust_list(0x55556987d660, 24) = 0 rseq(0x55556987dca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1470457848", 4096) = 28 getrandom("\xc4\x90\x07\xdc\xa6\x31\xba\x52", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556987dd00 brk(0x55556989ed00) = 0x55556989ed00 brk(0x55556989f000) = 0x55556989f000 mprotect(0x7fc38c566000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18executing program ) = 18 socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3 setsockopt(3, SOL_IPV6, IPV6_XFRM_POLICY, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 232) = 0 socket(AF_KEY, SOCK_RAW, 2) = 4 setsockopt(4, SOL_SOCKET, SO_RCVBUF, [0], 4) = 0 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x02\x0b\x00\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=16}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 16 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x02\x12\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=16}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 16 socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 5 socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 6 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\xac\x1e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x60\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=184}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 184 socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 7 sendmsg(7, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xac\x1e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x60\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=184}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_EOR}, MSG_NOSIGNAL) = 184 [ 29.974558][ T30] audit: type=1400 audit(1749811278.893:64): avc: denied { execmem } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 30.010446][ T30] audit: type=1400 audit(1749811278.913:65): avc: denied { create } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 30.012135][ T288] ================================================================== [ 30.051627][ T30] audit: type=1400 audit(1749811278.913:66): avc: denied { setopt } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 30.063776][ T288] BUG: KASAN: slab-out-of-bounds in xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 30.063827][ T288] Read of size 1 at addr ffff888104ba7bf8 by task syz-executor147/288 [ 30.094669][ T30] audit: type=1400 audit(1749811278.913:67): avc: denied { write } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 30.107862][ T288] [ 30.107889][ T288] CPU: 1 PID: 288 Comm: syz-executor147 Not tainted 5.15.185-syzkaller-00339-ge678c93d43cc #0 [ 30.107914][ T288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 30.107933][ T288] Call Trace: [ 30.107941][ T288] [ 30.107949][ T288] __dump_stack+0x21/0x30 [ 30.124284][ T30] audit: type=1400 audit(1749811278.913:68): avc: denied { create } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 30.150207][ T288] dump_stack_lvl+0xee/0x150 [ 30.150240][ T288] ? show_regs_print_info+0x20/0x20 [ 30.150257][ T288] ? load_image+0x3a0/0x3a0 [ 30.150279][ T288] print_address_description+0x7f/0x2c0 [ 30.153538][ T30] audit: type=1400 audit(1749811278.913:69): avc: denied { write } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 30.173080][ T288] ? xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 30.173118][ T288] kasan_report+0xf1/0x140 [ 30.173138][ T288] ? xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 30.187899][ T30] audit: type=1400 audit(1749811278.913:70): avc: denied { nlmsg_write } for pid=288 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 30.196692][ T288] __asan_report_load1_noabort+0x14/0x20 [ 30.196730][ T288] xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 30.196756][ T288] xfrm_policy_inexact_insert_node+0x938/0xb50 [ 30.412246][ T288] ? xfrm_netlink_rcv+0x72/0x90 [ 30.420049][ T288] ? netlink_unicast+0x87c/0xa40 [ 30.425669][ T288] ? netlink_sendmsg+0x86a/0xb70 [ 30.436567][ T288] ? ____sys_sendmsg+0x5a2/0x8c0 [ 30.442791][ T288] ? ___sys_sendmsg+0x1f0/0x260 [ 30.451906][ T288] ? x64_sys_call+0x4b/0x9a0 [ 30.458781][ T288] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 30.467573][ T288] xfrm_policy_inexact_alloc_chain+0x53a/0xb30 [ 30.480844][ T288] xfrm_policy_inexact_insert+0x70/0x1130 [ 30.488169][ T288] ? __get_hash_thresh+0x10c/0x420 [ 30.498794][ T288] ? policy_hash_bysel+0x110/0x4f0 [ 30.507733][ T288] xfrm_policy_insert+0x126/0x9a0 [ 30.517667][ T288] ? xfrm_policy_construct+0x54f/0x1f00 [ 30.523893][ T288] xfrm_add_policy+0x4d1/0x830 [ 30.533400][ T288] ? xfrm_dump_sa_done+0xc0/0xc0 [ 30.540008][ T288] xfrm_user_rcv_msg+0x45c/0x6e0 [ 30.546872][ T288] ? xfrm_netlink_rcv+0x90/0x90 [ 30.553837][ T288] ? avc_has_perm_noaudit+0x460/0x460 [ 30.561549][ T288] ? x64_sys_call+0x4b/0x9a0 [ 30.567171][ T288] ? selinux_nlmsg_lookup+0x237/0x4c0 [ 30.575043][ T288] netlink_rcv_skb+0x1e0/0x430 [ 30.582098][ T288] ? xfrm_netlink_rcv+0x90/0x90 [ 30.587532][ T288] ? netlink_ack+0xb60/0xb60 [ 30.596708][ T288] ? wait_for_completion_killable_timeout+0x10/0x10 [ 30.608973][ T288] ? __netlink_lookup+0x387/0x3b0 [ 30.620630][ T288] xfrm_netlink_rcv+0x72/0x90 [ 30.627777][ T288] netlink_unicast+0x87c/0xa40 [ 30.635244][ T288] netlink_sendmsg+0x86a/0xb70 [ 30.640745][ T288] ? netlink_getsockopt+0x530/0x530 [ 30.648684][ T288] ? __update_load_avg_cfs_rq+0xaf/0x2f0 [ 30.659691][ T288] ? security_socket_sendmsg+0x82/0xa0 [ 30.668497][ T288] ? netlink_getsockopt+0x530/0x530 [ 30.677871][ T288] ____sys_sendmsg+0x5a2/0x8c0 [ 30.684809][ T288] ? __sys_sendmsg_sock+0x40/0x40 [ 30.693696][ T288] ? import_iovec+0x7c/0xb0 [ 30.700893][ T288] ___sys_sendmsg+0x1f0/0x260 [ 30.706302][ T288] ? _raw_spin_unlock+0x4d/0x70 [ 30.714918][ T288] ? __sys_sendmsg+0x250/0x250 [ 30.722383][ T288] ? __schedule+0xb76/0x14c0 [ 30.728519][ T288] ? _raw_spin_lock_irqsave+0x110/0x110 [ 30.738673][ T288] ? cgroup_update_frozen+0x15c/0x970 [ 30.746901][ T288] ? ptrace_stop+0x6f4/0xa80 [ 30.751974][ T288] ? __kasan_check_read+0x11/0x20 [ 30.762649][ T288] ? __fdget+0x15b/0x230 [ 30.767118][ T288] __x64_sys_sendmsg+0x1e2/0x2a0 [ 30.775783][ T288] ? ___sys_sendmsg+0x260/0x260 [ 30.782938][ T288] ? __kasan_check_write+0x14/0x20 [ 30.789248][ T288] ? switch_fpu_return+0x15d/0x2c0 [ 30.797323][ T288] x64_sys_call+0x4b/0x9a0 [ 30.804542][ T288] do_syscall_64+0x4c/0xa0 [ 30.810543][ T288] ? clear_bhb_loop+0x50/0xa0 [ 30.817725][ T288] ? clear_bhb_loop+0x50/0xa0 [ 30.824263][ T288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 30.831419][ T288] RIP: 0033:0x7fc38c4f3869 [ 30.838288][ T288] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 30.868614][ T288] RSP: 002b:00007ffc8fa9ab68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 30.882594][ T288] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fc38c4f3869 [ 30.892975][ T288] RDX: 0000000000000000 RSI: 0000200000000580 RDI: 0000000000000005 [ 30.907403][ T288] RBP: 0000200000000180 R08: 0000000000000000 R09: 0000000000000000 [ 30.922111][ T288] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000580 [ 30.935526][ T288] R13: 0000200000000590 R14: 0000000000000001 R15: 0000200000000588 [ 30.944961][ T288] [ 30.948206][ T288] [ 30.950543][ T288] Allocated by task 288: [ 30.958845][ T288] __kasan_kmalloc+0xda/0x110 [ 30.964716][ T288] __kmalloc+0x13d/0x2c0 [ 30.973767][ T288] sk_prot_alloc+0xed/0x320 [ 30.982159][ T288] sk_alloc+0x38/0x430 [ 30.987774][ T288] pfkey_create+0x12a/0x660 [ 30.997970][ T288] __sock_create+0x38d/0x7a0 [ 31.003214][ T288] __sys_socket+0xec/0x190 [ 31.012009][ T288] __x64_sys_socket+0x7a/0x90 [ 31.022540][ T288] x64_sys_call+0x8c5/0x9a0 [ 31.029354][ T288] do_syscall_64+0x4c/0xa0 [ 31.038743][ T288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 31.047603][ T288] [ 31.051260][ T288] The buggy address belongs to the object at ffff888104ba7800 [ 31.051260][ T288] which belongs to the cache kmalloc-1k of size 1024 [ 31.074607][ T288] The buggy address is located 1016 bytes inside of [ 31.074607][ T288] 1024-byte region [ffff888104ba7800, ffff888104ba7c00) [ 31.095756][ T288] The buggy address belongs to the page: [ 31.105761][ T288] page:ffffea000412e800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104ba0 [ 31.120281][ T288] head:ffffea000412e800 order:3 compound_mapcount:0 compound_pincount:0 [ 31.134328][ T288] flags: 0x4000000000010200(slab|head|zone=1) [ 31.144945][ T288] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043080 [ 31.157667][ T288] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 31.174770][ T288] page dumped because: kasan: bad access detected [ 31.183317][ T288] page_owner tracks the page as allocated [ 31.195287][ T288] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 288, ts 29997834240, free_ts 29942873566 [ 31.221799][ T288] post_alloc_hook+0x192/0x1b0 [ 31.228693][ T288] prep_new_page+0x1c/0x110 [ 31.235716][ T288] get_page_from_freelist+0x2cc5/0x2d50 [ 31.244577][ T288] __alloc_pages+0x18f/0x440 [ 31.253100][ T288] new_slab+0xa1/0x4d0 [ 31.260759][ T288] ___slab_alloc+0x381/0x810 [ 31.266242][ T288] __slab_alloc+0x49/0x90 [ 31.271426][ T288] __kmalloc_track_caller+0x169/0x2c0 [ 31.279901][ T288] __alloc_skb+0x21a/0x740 [ 31.286476][ T288] __napi_alloc_skb+0x162/0x2e0 [ 31.292835][ T288] page_to_skb+0x287/0xb60 [ 31.297874][ T288] receive_buf+0xc17/0x49f0 [ 31.303829][ T288] virtnet_poll+0x545/0xef0 [ 31.312159][ T288] __napi_poll+0xbe/0x590 [ 31.317796][ T288] net_rx_action+0x371/0x8e0 [ 31.324107][ T288] handle_softirqs+0x250/0x560 [ 31.332123][ T288] page last free stack trace: [ 31.338489][ T288] free_unref_page_prepare+0x542/0x550 [ 31.348258][ T288] free_unref_page+0xa2/0x550 [ 31.356670][ T288] __free_pages+0x6c/0x100 [ 31.364192][ T288] __free_slab+0xe8/0x1e0 [ 31.369531][ T288] __unfreeze_partials+0x160/0x190 [ 31.377356][ T288] put_cpu_partial+0xc6/0x120 [ 31.385166][ T288] __slab_free+0x1d4/0x290 [ 31.392557][ T288] ___cache_free+0x104/0x120 [ 31.399423][ T288] qlink_free+0x4d/0x90 [ 31.406106][ T288] qlist_free_all+0x5f/0xb0 [ 31.411376][ T288] kasan_quarantine_reduce+0x14a/0x170 [ 31.419017][ T288] __kasan_slab_alloc+0x2f/0xf0 [ 31.426366][ T288] slab_post_alloc_hook+0x4f/0x2b0 [ 31.435917][ T288] kmem_cache_alloc+0xf7/0x260 [ 31.442442][ T288] prepare_creds+0x2f/0x640 [ 31.448944][ T288] __sys_setgid+0x91/0x3c0 [ 31.456208][ T288] [ 31.459424][ T288] Memory state around the buggy address: [ 31.468951][ T288] ffff888104ba7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.483600][ T288] ffff888104ba7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.495201][ T288] >ffff888104ba7b80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 31.506107][ T288] ^ [ 31.523110][ T288] ffff888104ba7c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc sendmsg(5, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\xac\x1e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=184}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 184 exit_group(0) = ? +++ exited with 0 +++ [ 31.533127][ T288] ffff88810