// https://syzkaller.appspot.com/bug?id=5f8b10dadfd89722989607c79fcfdb0df30c4d01 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_bpf #define __NR_bpf 321 #endif static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } #define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \ *(type*)(addr) = \ htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \ (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static void netlink_nest(struct nlmsg* nlmsg, int typ) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_type = typ; nlmsg->pos += sizeof(*attr); nlmsg->nested[nlmsg->nesting++] = attr; } static void netlink_done(struct nlmsg* nlmsg) { struct nlattr* attr = nlmsg->nested[--nlmsg->nesting]; attr->nla_len = nlmsg->pos - (char*)attr; } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_send(struct nlmsg* nlmsg, int sock) { return netlink_send_ext(nlmsg, sock, 0, NULL, true); } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } static unsigned int queue_count = 2; static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type, const char* name, bool up) { struct ifinfomsg hdr; memset(&hdr, 0, sizeof(hdr)); if (up) hdr.ifi_flags = hdr.ifi_change = IFF_UP; netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr, sizeof(hdr)); if (name) netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name)); netlink_attr(nlmsg, IFLA_NUM_TX_QUEUES, &queue_count, sizeof(queue_count)); netlink_attr(nlmsg, IFLA_NUM_RX_QUEUES, &queue_count, sizeof(queue_count)); netlink_nest(nlmsg, IFLA_LINKINFO); netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type)); } static void netlink_device_change(struct nlmsg* nlmsg, int sock, const char* name, bool up, const char* master, const void* mac, int macsize, const char* new_name) { struct ifinfomsg hdr; memset(&hdr, 0, sizeof(hdr)); if (up) hdr.ifi_flags = hdr.ifi_change = IFF_UP; hdr.ifi_index = if_nametoindex(name); netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr)); if (new_name) netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name)); if (master) { int ifindex = if_nametoindex(master); netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex)); } if (macsize) netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize); int err = netlink_send(nlmsg, sock); if (err < 0) { } } static struct nlmsg nlmsg; static void setup_sysctl() { int cad_pid = fork(); if (cad_pid < 0) exit(1); if (cad_pid == 0) { for (;;) sleep(100); } char tmppid[32]; snprintf(tmppid, sizeof(tmppid), "%d", cad_pid); struct { const char* name; const char* data; } files[] = { {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"}, {"/proc/sys/kernel/hung_task_check_interval_secs", "20"}, {"/proc/sys/net/core/bpf_jit_kallsyms", "1"}, {"/proc/sys/net/core/bpf_jit_harden", "0"}, {"/proc/sys/kernel/kptr_restrict", "0"}, {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"}, {"/proc/sys/fs/mount-max", "100"}, {"/proc/sys/vm/oom_dump_tasks", "0"}, {"/proc/sys/debug/exception-trace", "0"}, {"/proc/sys/kernel/printk", "7 4 1 3"}, {"/proc/sys/kernel/keys/gc_delay", "1"}, {"/proc/sys/vm/oom_kill_allocating_task", "1"}, {"/sys/kernel/debug/failslab/task-filter", "Y"}, {"/sys/kernel/debug/fail_page_alloc/task-filter", "Y"}, {"/sys/kernel/debug/fail_futex/task-filter", "Y"}, {"/sys/kernel/debug/fail_usercopy/task-filter", "Y"}, {"/sys/kernel/debug/fail_make_request/task-filter", "Y"}, {"/sys/kernel/debug/fail_io_timeout/task-filter", "Y"}, {"/sys/kernel/debug/fail_iommufd/task-filter", "Y"}, {"/proc/sys/kernel/ctrl-alt-del", "0"}, {"/proc/sys/kernel/cad_pid", tmppid}, }; for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].name, files[i].data)) { } } kill(cad_pid, SIGKILL); while (waitpid(cad_pid, NULL, 0) != cad_pid) ; } #define NL802154_CMD_SET_SHORT_ADDR 11 #define NL802154_ATTR_IFINDEX 3 #define NL802154_ATTR_SHORT_ADDR 10 static const char* setup_802154() { const char* error = NULL; int sock_generic = -1; int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock_route == -1) { error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) failed"; goto fail; } sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock_generic == -1) { error = "socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) failed"; goto fail; } { int nl802154_family_id = netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true); if (nl802154_family_id < 0) { error = "netlink_query_family_id failed"; goto fail; } for (int i = 0; i < 2; i++) { char devname[] = "wpan0"; devname[strlen(devname) - 1] += i; uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8); uint16_t shortaddr = 0xaaa0 + i; int ifindex = if_nametoindex(devname); struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR; netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr, sizeof(shortaddr)); if (netlink_send(&nlmsg, sock_generic) < 0) { error = "NL802154_CMD_SET_SHORT_ADDR failed"; goto fail; } netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr, sizeof(hwaddr), 0); if (i == 0) { netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0", false); netlink_done(&nlmsg); netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex)); if (netlink_send(&nlmsg, sock_route) < 0) { error = "netlink: adding device lowpan0 type lowpan link wpan0"; goto fail; } } } } fail: close(sock_route); close(sock_generic); return error; } uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); setup_sysctl(); const char* reason; (void)reason; if ((reason = setup_802154())) printf("the reproducer may not work as expected: 802154 injection setup " "failed: %s\n", reason); use_temporary_dir(); intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // bpf$PROG_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] { // bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types, // bpf_btf_id[opt], fd_bpf_prog[opt]] { // type: bpf_prog_type = 0x0 (4 bytes) // ninsn: bytesize8 = 0xc (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYBLOB: buffer: {18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00 85 00 00 00 75 00 00 00 18 01 00 00 20 64 6c 25 00 00 00 00 // 00 20 20 20 7b 1a f8 ff 00 00 00 00 bf a1 00 00 00 00 00 00 07 // 01 00 00 f8 ff ff ff b7 02 00 00 08 00 00 00 b7 03 00 00 00 00 // 00 00 85 00 00 00 0e 00 00 00 95} (length 0x59) // } // } // } // license: nil // loglev: int32 = 0xfffffffe (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x0 (4 bytes) // flags: bpf_prog_load_flags = 0x0 (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // union bpf_prog_attach_types { // fallback: bpf_attach_types = 0x0 (4 bytes) // } // btf_fd: fd_btf (resource) // func_info_rec_size: const = 0x0 (4 bytes) // func_info: nil // func_info_cnt: len = 0x0 (4 bytes) // line_info_rec_size: const = 0x0 (4 bytes) // line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: bpf_btf_id (resource) // attach_prog_fd: fd_bpf_prog (resource) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x0 (4 bytes) // log_true_size: int32 = 0x0 (4 bytes) // prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog *(uint32_t*)0x200000000500 = 0; *(uint32_t*)0x200000000504 = 0xc; *(uint64_t*)0x200000000508 = 0x200000000440; memcpy( (void*)0x200000000440, "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x85\x00" "\x00\x00\x75\x00\x00\x00\x18\x01\x00\x00\x20\x64\x6c\x25\x00\x00\x00\x00" "\x00\x20\x20\x20\x7b\x1a\xf8\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00" "\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x08\x00\x00\x00" "\xb7\x03\x00\x00\x00\x00\x00\x00\x85\x00\x00\x00\x0e\x00\x00\x00\x95", 89); *(uint64_t*)0x200000000510 = 0; *(uint32_t*)0x200000000518 = 0xfffffffe; *(uint32_t*)0x20000000051c = 0; *(uint64_t*)0x200000000520 = 0; *(uint32_t*)0x200000000528 = 0; *(uint32_t*)0x20000000052c = 0; memset((void*)0x200000000530, 0, 16); *(uint32_t*)0x200000000540 = 0; *(uint32_t*)0x200000000544 = 0; *(uint32_t*)0x200000000548 = -1; *(uint32_t*)0x20000000054c = 0; *(uint64_t*)0x200000000550 = 0; *(uint32_t*)0x200000000558 = 0; *(uint32_t*)0x20000000055c = 0; *(uint64_t*)0x200000000560 = 0; *(uint32_t*)0x200000000568 = 0; *(uint32_t*)0x20000000056c = 0; *(uint32_t*)0x200000000570 = -1; *(uint32_t*)0x200000000574 = 0; *(uint64_t*)0x200000000578 = 0; *(uint64_t*)0x200000000580 = 0; *(uint32_t*)0x200000000588 = 0; *(uint32_t*)0x20000000058c = 0; *(uint32_t*)0x200000000590 = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000500ul, /*size=*/0x94ul); // bpf$MAP_CREATE arguments: [ // cmd: const = 0x0 (8 bytes) // arg: ptr[in, bpf_map_create_arg] { // union bpf_map_create_arg { // base: bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32, // int32, flags[map_flags, int32], const[0, int64]] { // type: bpf_map_type = 0x7 (4 bytes) // ksize: int32 = 0x4 (4 bytes) // vsize: int32 = 0x8 (4 bytes) // max: int32 = 0x2 (4 bytes) // flags: map_flags = 0x0 (4 bytes) // inner: fd_bpf_map (resource) // node: int32 = 0x0 (4 bytes) // map_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00} (length 0x10) map_ifindex: ifindex (resource) btf_fd: fd_btf // (resource) btf_key_type_id: int32 = 0x0 (4 bytes) // btf_value_type_id: int32 = 0x0 (4 bytes) // btf_vmlinux_type_id: int32 = 0x0 (4 bytes) // map_extra: const = 0x0 (8 bytes) // value_type_btf_obj_fd: union // _bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32, // int32, flags[map_flags, int32], const[0, // int64]]_value_type_btf_obj_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad1: union _bpf_map_create_arg_t[flags[bpf_map_type, int32], // int32, int32, int32, flags[map_flags, int32], const[0, // int64]]_pad1_wrapper { // value: const = 0x0 (4 bytes) // } // map_token_fd: union _bpf_map_create_arg_t[flags[bpf_map_type, // int32], int32, int32, int32, flags[map_flags, int32], const[0, // int64]]_map_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad2: union _bpf_map_create_arg_t[flags[bpf_map_type, int32], // int32, int32, int32, flags[map_flags, int32], const[0, // int64]]_pad2_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // } // size: len = 0x50 (8 bytes) // ] // returns fd_bpf_map *(uint32_t*)0x200000000280 = 7; *(uint32_t*)0x200000000284 = 4; *(uint32_t*)0x200000000288 = 8; *(uint32_t*)0x20000000028c = 2; *(uint32_t*)0x200000000290 = 0; *(uint32_t*)0x200000000294 = -1; *(uint32_t*)0x200000000298 = 0; memset((void*)0x20000000029c, 0, 16); *(uint32_t*)0x2000000002ac = 0; *(uint32_t*)0x2000000002b0 = -1; *(uint32_t*)0x2000000002b4 = 0; *(uint32_t*)0x2000000002b8 = 0; *(uint32_t*)0x2000000002bc = 0; *(uint64_t*)0x2000000002c0 = 0; *(uint32_t*)0x2000000002c8 = 0; *(uint32_t*)0x2000000002cc = 0; res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000280ul, /*size=*/0x50ul); if (res != -1) r[0] = res; // bpf$PROG_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] { // bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types, // bpf_btf_id[opt], fd_bpf_prog[opt]] { // type: bpf_prog_type = 0x11 (4 bytes) // ninsn: bytesize8 = 0x9 (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYBLOB: buffer: {18 00 00 00 00 00 00 01 00 00 00 00 00 00 00 // 00 18 12 00 00} (length 0x14) // } // union ANYUNION { // ANYRES32: ANYRES32 (resource) // } // union ANYUNION { // ANYBLOB: buffer: {00 00 00 00 00 00 00 00 b7 03 00 00 00 07 00 // 00 85 00 00 00 1b} (length 0x15) // } // } // } // license: nil // loglev: int32 = 0xfffffffe (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x41000 (4 bytes) // flags: bpf_prog_load_flags = 0x0 (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // union bpf_prog_attach_types { // fallback: bpf_attach_types = 0x8 (4 bytes) // } // btf_fd: fd_btf (resource) // func_info_rec_size: const = 0x0 (4 bytes) // func_info: nil // func_info_cnt: len = 0x0 (4 bytes) // line_info_rec_size: const = 0x0 (4 bytes) // line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: bpf_btf_id (resource) // attach_prog_fd: fd_bpf_prog (resource) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x0 (4 bytes) // log_true_size: int32 = 0x2 (4 bytes) // prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog *(uint32_t*)0x200000000680 = 0x11; *(uint32_t*)0x200000000684 = 9; *(uint64_t*)0x200000000688 = 0x200000000440; memcpy((void*)0x200000000440, "\x18\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x18" "\x12\x00\x00", 20); *(uint32_t*)0x200000000454 = r[0]; memcpy((void*)0x200000000458, "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x03\x00\x00\x00\x07\x00\x00\x85" "\x00\x00\x00\x1b", 21); *(uint64_t*)0x200000000690 = 0; *(uint32_t*)0x200000000698 = 0xfffffffe; *(uint32_t*)0x20000000069c = 0; *(uint64_t*)0x2000000006a0 = 0; *(uint32_t*)0x2000000006a8 = 0x41000; *(uint32_t*)0x2000000006ac = 0; memset((void*)0x2000000006b0, 0, 16); *(uint32_t*)0x2000000006c0 = 0; *(uint32_t*)0x2000000006c4 = 8; *(uint32_t*)0x2000000006c8 = -1; *(uint32_t*)0x2000000006cc = 0; *(uint64_t*)0x2000000006d0 = 0; *(uint32_t*)0x2000000006d8 = 0; *(uint32_t*)0x2000000006dc = 0; *(uint64_t*)0x2000000006e0 = 0; *(uint32_t*)0x2000000006e8 = 0; *(uint32_t*)0x2000000006ec = 0; *(uint32_t*)0x2000000006f0 = 0; *(uint32_t*)0x2000000006f4 = 0; *(uint64_t*)0x2000000006f8 = 0; *(uint64_t*)0x200000000700 = 0; *(uint32_t*)0x200000000708 = 0; *(uint32_t*)0x20000000070c = 2; *(uint32_t*)0x200000000710 = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000680ul, /*size=*/0x94ul); // bpf$PROG_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] { // bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types, // bpf_btf_id[opt], fd_bpf_prog[opt]] { // type: bpf_prog_type = 0x7 (4 bytes) // ninsn: bytesize8 = 0xc (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // } // } // license: ptr[in, buffer] { // buffer: {47 50 4c 00} (length 0x4) // } // loglev: int32 = 0x0 (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x0 (4 bytes) // flags: bpf_prog_load_flags = 0xa (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // union bpf_prog_attach_types { // fallback: bpf_attach_types = 0x10 (4 bytes) // } // btf_fd: fd_btf (resource) // func_info_rec_size: const = 0x0 (4 bytes) // func_info: nil // func_info_cnt: len = 0x0 (4 bytes) // line_info_rec_size: const = 0x0 (4 bytes) // line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: bpf_btf_id (resource) // attach_prog_fd: fd_bpf_prog (resource) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x0 (4 bytes) // log_true_size: int32 = 0x0 (4 bytes) // prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog *(uint32_t*)0x2000000005c0 = 7; *(uint32_t*)0x2000000005c4 = 0xc; *(uint64_t*)0x2000000005c8 = 0x200000000440; *(uint64_t*)0x2000000005d0 = 0x200000000240; memcpy((void*)0x200000000240, "GPL\000", 4); *(uint32_t*)0x2000000005d8 = 0; *(uint32_t*)0x2000000005dc = 0; *(uint64_t*)0x2000000005e0 = 0; *(uint32_t*)0x2000000005e8 = 0; *(uint32_t*)0x2000000005ec = 0xa; memset((void*)0x2000000005f0, 0, 16); *(uint32_t*)0x200000000600 = 0; *(uint32_t*)0x200000000604 = 0x10; *(uint32_t*)0x200000000608 = -1; *(uint32_t*)0x20000000060c = 0; *(uint64_t*)0x200000000610 = 0; *(uint32_t*)0x200000000618 = 0; *(uint32_t*)0x20000000061c = 0; *(uint64_t*)0x200000000620 = 0; *(uint32_t*)0x200000000628 = 0; *(uint32_t*)0x20000000062c = 0; *(uint32_t*)0x200000000630 = 0; *(uint32_t*)0x200000000634 = 0; *(uint64_t*)0x200000000638 = 0; *(uint64_t*)0x200000000640 = 0; *(uint32_t*)0x200000000648 = 0; *(uint32_t*)0x20000000064c = 0; *(uint32_t*)0x200000000650 = 0; res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000005c0ul, /*size=*/0x94ul); if (res != -1) r[1] = res; // perf_event_open arguments: [ // attr: ptr[in, perf_event_attr] { // perf_event_attr { // type: perf_event_type = 0x1 (4 bytes) // size: len = 0x80 (4 bytes) // config0: int8 = 0x0 (1 bytes) // config1: int8 = 0x0 (1 bytes) // config2: int8 = 0x0 (1 bytes) // config3: int8 = 0x0 (1 bytes) // config4: const = 0x0 (4 bytes) // sample_freq: int64 = 0x200 (8 bytes) // sample_type: perf_sample_type = 0x20 (8 bytes) // read_format: perf_read_format = 0x3 (8 bytes) // disabled: int64 = 0x0 (0 bytes) // inherit: int64 = 0x0 (0 bytes) // pinned: int64 = 0x0 (0 bytes) // exclusive: int64 = 0x0 (0 bytes) // exclude_user: int64 = 0x0 (0 bytes) // exclude_kernel: int64 = 0x0 (0 bytes) // exclude_hv: int64 = 0x0 (0 bytes) // exclude_idle: int64 = 0x0 (0 bytes) // mmap: int64 = 0x0 (0 bytes) // comm: int64 = 0x0 (0 bytes) // freq: int64 = 0x0 (0 bytes) // inherit_stat: int64 = 0x0 (0 bytes) // enable_on_exec: int64 = 0x0 (0 bytes) // task: int64 = 0x0 (0 bytes) // watermark: int64 = 0x0 (0 bytes) // precise_ip: int64 = 0x0 (0 bytes) // mmap_data: int64 = 0x0 (0 bytes) // sample_id_all: int64 = 0x0 (0 bytes) // exclude_host: int64 = 0x0 (0 bytes) // exclude_guest: int64 = 0x0 (0 bytes) // exclude_callchain_kernel: int64 = 0x0 (0 bytes) // exclude_callchain_user: int64 = 0x0 (0 bytes) // mmap2: int64 = 0x0 (0 bytes) // comm_exec: int64 = 0x0 (0 bytes) // use_clockid: int64 = 0x0 (0 bytes) // context_switch: int64 = 0x0 (0 bytes) // write_backward: int64 = 0x0 (0 bytes) // namespaces: int64 = 0x0 (0 bytes) // ksymbol: int64 = 0x0 (0 bytes) // bpf_event: int64 = 0x0 (0 bytes) // aux_output: int64 = 0x0 (0 bytes) // cgroup: int64 = 0x0 (0 bytes) // text_poke: int64 = 0x0 (0 bytes) // build_id: int64 = 0x0 (0 bytes) // inherit_thread: int64 = 0x0 (0 bytes) // remove_on_exec: int64 = 0x0 (0 bytes) // sigtrap: int64 = 0x0 (0 bytes) // __reserved_1: const = 0x0 (8 bytes) // wakeup_events: int32 = 0x0 (4 bytes) // bp_type: perf_bp_type = 0x0 (4 bytes) // bp_config: union perf_bp_config { // perf_bp: perf_bp { // bp_addr: nil // bp_len: perf_bp_lens = 0x8 (8 bytes) // } // } // branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes) // sample_regs_user: int64 = 0x400000 (8 bytes) // sample_stack_user: int32 = 0x0 (4 bytes) // clockid: clock_type = 0x0 (4 bytes) // sample_regs_intr: int64 = 0x0 (8 bytes) // aux_watermark: int32 = 0x0 (4 bytes) // sample_max_stack: int16 = 0x3 (2 bytes) // __reserved_2: const = 0x0 (2 bytes) // aux_sample_size: int32 = 0x0 (4 bytes) // __reserved_3: const = 0x0 (4 bytes) // sig_data: int64 = 0x0 (8 bytes) // } // } // pid: pid (resource) // cpu: intptr = 0xffffffffffffffff (8 bytes) // group: fd_perf (resource) // flags: perf_flags = 0x0 (8 bytes) // ] // returns fd_perf *(uint32_t*)0x2000000012c0 = 1; *(uint32_t*)0x2000000012c4 = 0x80; *(uint8_t*)0x2000000012c8 = 0; *(uint8_t*)0x2000000012c9 = 0; *(uint8_t*)0x2000000012ca = 0; *(uint8_t*)0x2000000012cb = 0; *(uint32_t*)0x2000000012cc = 0; *(uint64_t*)0x2000000012d0 = 0x200; *(uint64_t*)0x2000000012d8 = 0x20; *(uint64_t*)0x2000000012e0 = 3; STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 0, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 1, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 2, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 3, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 4, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 5, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 6, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 7, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 8, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 9, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 10, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 11, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 12, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 13, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 14, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 15, 2); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 17, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 18, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 19, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 20, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 21, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 22, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 23, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 24, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 25, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 26, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 27, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 28, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 29, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 30, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 31, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 32, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 33, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 34, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 35, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 36, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 37, 1); STORE_BY_BITMASK(uint64_t, , 0x2000000012e8, 0, 38, 26); *(uint32_t*)0x2000000012f0 = 0; *(uint32_t*)0x2000000012f4 = 0; *(uint64_t*)0x2000000012f8 = 0; *(uint64_t*)0x200000001300 = 8; *(uint64_t*)0x200000001308 = 0; *(uint64_t*)0x200000001310 = 0x400000; *(uint32_t*)0x200000001318 = 0; *(uint32_t*)0x20000000131c = 0; *(uint64_t*)0x200000001320 = 0; *(uint32_t*)0x200000001328 = 0; *(uint16_t*)0x20000000132c = 3; *(uint16_t*)0x20000000132e = 0; *(uint32_t*)0x200000001330 = 0; *(uint32_t*)0x200000001334 = 0; *(uint64_t*)0x200000001338 = 0; res = syscall(__NR_perf_event_open, /*attr=*/0x2000000012c0ul, /*pid=*/0, /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1, /*flags=*/0ul); if (res != -1) r[2] = res; // ioctl$PERF_EVENT_IOC_SET_BPF arguments: [ // fd: fd_perf (resource) // cmd: const = 0x40042408 (4 bytes) // prog: fd_bpf_prog (resource) // ] syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x40042408, /*prog=*/r[1]); return 0; }