./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1828633656 <...> Warning: Permanently added '10.128.0.206' (ED25519) to the list of known hosts. execve("./syz-executor1828633656", ["./syz-executor1828633656"], 0x7ffeeff07230 /* 10 vars */) = 0 brk(NULL) = 0x5555692b2000 brk(0x5555692b2d00) = 0x5555692b2d00 arch_prctl(ARCH_SET_FS, 0x5555692b2380) = 0 set_tid_address(0x5555692b2650) = 282 set_robust_list(0x5555692b2660, 24) = 0 rseq(0x5555692b2ca0, 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-executor1828633656", 4096) = 28 getrandom("\xfa\x2e\x8b\x81\x24\xb5\xf8\x45", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555692b2d00 brk(0x5555692d3d00) = 0x5555692d3d00 brk(0x5555692d4000) = 0x5555692d4000 mprotect(0x7f08853ea000, 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, "\xac\x14\x14\xbb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\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\x82\x15\x01\xf6\x3e\xd0\x2a\x17\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x60\x30\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}, 0) = 184 [ 34.950054][ T24] audit: type=1400 audit(1753406037.750:64): avc: denied { execmem } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 34.968997][ T282] ================================================================== [ 34.970169][ T24] audit: type=1400 audit(1753406037.770:65): avc: denied { create } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 34.977624][ T282] BUG: KASAN: slab-out-of-bounds in xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 34.977635][ T282] Read of size 1 at addr ffff88811d22abd8 by task syz-executor182/282 [ 34.977638][ T282] [ 34.977656][ T282] CPU: 0 PID: 282 Comm: syz-executor182 Not tainted 5.10.240-syzkaller-00213-gad9a98ef27a4 #0 [ 34.977662][ T282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 34.977670][ T282] Call Trace: [ 34.977685][ T282] __dump_stack+0x21/0x24 [ 34.977696][ T282] dump_stack_lvl+0x169/0x1d8 [ 34.977708][ T282] ? show_regs_print_info+0x18/0x18 [ 34.977730][ T282] ? thaw_kernel_threads+0x220/0x220 [ 34.998107][ T24] audit: type=1400 audit(1753406037.770:66): avc: denied { setopt } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 35.006433][ T282] ? unwind_get_return_address+0x4d/0x90 [ 35.006446][ T282] print_address_description+0x7f/0x2c0 [ 35.006469][ T282] ? xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 35.014893][ T24] audit: type=1400 audit(1753406037.770:67): avc: denied { write } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 35.016934][ T282] kasan_report+0xe2/0x130 [ 35.027379][ T24] audit: type=1400 audit(1753406037.770:68): avc: denied { create } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 35.037199][ T282] ? xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 35.037213][ T282] __asan_report_load1_noabort+0x14/0x20 [ 35.037232][ T282] xfrm_policy_inexact_list_reinsert+0x620/0x6d0 [ 35.040908][ T24] audit: type=1400 audit(1753406037.770:69): avc: denied { write } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 35.044929][ T282] xfrm_policy_inexact_insert_node+0x938/0xb50 [ 35.044940][ T282] ? xfrm_netlink_rcv+0x72/0x90 [ 35.044958][ T282] ? netlink_unicast+0x876/0xa40 [ 35.049932][ T24] audit: type=1400 audit(1753406037.770:70): avc: denied { nlmsg_write } for pid=282 comm="syz-executor182" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 35.054803][ T282] ? ____sys_sendmsg+0x5a2/0x8c0 [ 35.054816][ T282] ? do_syscall_64+0x31/0x40 [ 35.054837][ T282] xfrm_policy_inexact_alloc_chain+0x53a/0xb30 [ 35.232547][ T282] xfrm_policy_inexact_insert+0x70/0x1130 [ 35.238272][ T282] ? __get_hash_thresh+0x10c/0x420 [ 35.243381][ T282] ? policy_hash_bysel+0x110/0x4f0 [ 35.248494][ T282] xfrm_policy_insert+0x126/0x9a0 [ 35.253515][ T282] ? xfrm_policy_construct+0x54f/0x1f00 [ 35.259054][ T282] xfrm_add_policy+0x4d1/0x830 [ 35.263835][ T282] ? xfrm_dump_sa_done+0xc0/0xc0 [ 35.268781][ T282] xfrm_user_rcv_msg+0x450/0x6d0 [ 35.273716][ T282] ? xfrm_netlink_rcv+0x90/0x90 [ 35.278566][ T282] ? selinux_nlmsg_lookup+0x219/0x4a0 [ 35.283936][ T282] netlink_rcv_skb+0x1e0/0x430 [ 35.288694][ T282] ? xfrm_netlink_rcv+0x90/0x90 [ 35.293540][ T282] ? netlink_ack+0xb80/0xb80 [ 35.298151][ T282] ? mutex_trylock+0xa0/0xa0 [ 35.302745][ T282] ? __netlink_lookup+0x387/0x3b0 [ 35.307869][ T282] xfrm_netlink_rcv+0x72/0x90 [ 35.312544][ T282] netlink_unicast+0x876/0xa40 [ 35.317306][ T282] netlink_sendmsg+0x88d/0xb30 [ 35.322224][ T282] ? netlink_getsockopt+0x530/0x530 [ 35.327453][ T282] ? copy_fpregs_to_fpstate+0x14a/0x1b0 [ 35.333023][ T282] ? security_socket_sendmsg+0x82/0xa0 [ 35.338486][ T282] ? netlink_getsockopt+0x530/0x530 [ 35.343679][ T282] ____sys_sendmsg+0x5a2/0x8c0 [ 35.348439][ T282] ? __sys_sendmsg_sock+0x40/0x40 [ 35.353458][ T282] ? import_iovec+0x7c/0xb0 [ 35.357955][ T282] ___sys_sendmsg+0x1f0/0x260 [ 35.362648][ T282] ? __switch_to_asm+0x34/0x60 [ 35.367416][ T282] ? __sys_sendmsg+0x250/0x250 [ 35.372180][ T282] ? __kasan_check_read+0x11/0x20 [ 35.377198][ T282] ? __fdget+0x15b/0x230 [ 35.381441][ T282] __x64_sys_sendmsg+0x1e2/0x2a0 [ 35.386529][ T282] ? do_notify_parent+0x7e0/0x7e0 [ 35.391555][ T282] ? ___sys_sendmsg+0x260/0x260 [ 35.396402][ T282] ? syscall_trace_enter+0x4b/0x170 [ 35.401599][ T282] do_syscall_64+0x31/0x40 [ 35.406025][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 35.411936][ T282] RIP: 0033:0x7f0885377869 [ 35.416360][ T282] 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 [ 35.435962][ T282] RSP: 002b:00007ffc14576888 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.444388][ T282] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f0885377869 [ 35.452372][ T282] RDX: 0000000000000000 RSI: 0000200000000580 RDI: 0000000000000005 [ 35.460458][ T282] RBP: 0000200000000180 R08: 0000000000000000 R09: 0000000000000000 [ 35.468439][ T282] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000580 [ 35.476411][ T282] R13: 0000200000000590 R14: 0000000000000001 R15: 0000200000000588 [ 35.484380][ T282] [ 35.486703][ T282] Allocated by task 282: [ 35.490949][ T282] __kasan_kmalloc+0xda/0x110 [ 35.495625][ T282] __kmalloc+0x1a7/0x330 [ 35.499862][ T282] sk_prot_alloc+0xb2/0x340 [ 35.504356][ T282] sk_alloc+0x38/0x4e0 [ 35.508426][ T282] pfkey_create+0x12a/0x660 [ 35.512937][ T282] __sock_create+0x38d/0x770 [ 35.517532][ T282] __sys_socket+0xec/0x190 [ 35.521950][ T282] __x64_sys_socket+0x7a/0x90 [ 35.526628][ T282] do_syscall_64+0x31/0x40 [ 35.531042][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 35.536943][ T282] [ 35.539273][ T282] The buggy address belongs to the object at ffff88811d22a800 [ 35.539273][ T282] which belongs to the cache kmalloc-1k of size 1024 [ 35.553405][ T282] The buggy address is located 984 bytes inside of [ 35.553405][ T282] 1024-byte region [ffff88811d22a800, ffff88811d22ac00) [ 35.566755][ T282] The buggy address belongs to the page: [ 35.572399][ T282] page:ffffea0004748a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11d228 [ 35.582622][ T282] head:ffffea0004748a00 order:3 compound_mapcount:0 compound_pincount:0 [ 35.590957][ T282] flags: 0x4000000000010200(slab|head) [ 35.596499][ T282] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 35.605079][ T282] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 35.613648][ T282] page dumped because: kasan: bad access detected [ 35.620057][ T282] page_owner tracks the page as allocated [ 35.625774][ T282] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 282, ts 34965139016, free_ts 34948798340 [ 35.644785][ T282] prep_new_page+0x179/0x180 [ 35.649375][ T282] get_page_from_freelist+0x2235/0x23d0 [ 35.654919][ T282] __alloc_pages_nodemask+0x268/0x5f0 [ 35.660283][ T282] new_slab+0x84/0x3f0 [ 35.664344][ T282] ___slab_alloc+0x2a6/0x450 [ 35.668929][ T282] __slab_alloc+0x63/0xa0 [ 35.673252][ T282] __kmalloc+0x201/0x330 [ 35.677484][ T282] sk_prot_alloc+0xb2/0x340 [ 35.681980][ T282] sk_alloc+0x38/0x4e0 [ 35.686055][ T282] pfkey_create+0x12a/0x660 [ 35.690551][ T282] __sock_create+0x38d/0x770 [ 35.695136][ T282] __sys_socket+0xec/0x190 [ 35.699548][ T282] __x64_sys_socket+0x7a/0x90 [ 35.704248][ T282] do_syscall_64+0x31/0x40 [ 35.708658][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 35.714540][ T282] page last free stack trace: [ 35.719218][ T282] __free_pages_ok+0x7fc/0x820 [ 35.723976][ T282] free_compound_page+0x73/0x90 [ 35.728823][ T282] __put_compound_page+0x77/0xb0 [ 35.733776][ T282] __put_page+0xbd/0xe0 [ 35.737928][ T282] page_to_skb+0x3bf/0x8b0 [ 35.742343][ T282] receive_buf+0xba1/0x4590 [ 35.746844][ T282] virtnet_poll+0x4f2/0xef0 [ 35.751343][ T282] net_rx_action+0x432/0xdd0 [ 35.755932][ T282] __do_softirq+0x255/0x563 [ 35.760425][ T282] [ 35.762743][ T282] Memory state around the buggy address: [ 35.768372][ T282] ffff88811d22aa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.776428][ T282] ffff88811d22ab00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.784488][ T282] >ffff88811d22ab80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 35.792581][ T282] ^ 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\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\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 +++ [ 35.799544][ T282] ffff88811d22ac00: fc fc fc