diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index c4a49e8eb7b5..ac1ff4e7741a 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -176,6 +176,8 @@ enum kern_feature_id {
 	FEAT_PROBE_READ_KERN,
 	/* BPF_PROG_BIND_MAP is supported */
 	FEAT_PROG_BIND_MAP,
+	/* Kernel support for module BTFs */
+	FEAT_MODULE_BTF,
 	__FEAT_CNT,
 };
 
@@ -402,6 +404,12 @@ struct extern_desc {
 
 static LIST_HEAD(bpf_objects_list);
 
+struct module_btf {
+	struct btf *btf;
+	char *name;
+	__u32 id;
+};
+
 struct bpf_object {
 	char name[BPF_OBJ_NAME_LEN];
 	char license[64];
@@ -470,6 +478,11 @@ struct bpf_object {
 	struct btf *btf_vmlinux;
 	/* vmlinux BTF override for CO-RE relocations */
 	struct btf *btf_vmlinux_override;
+	/* Lazily initialized kernel module BTFs */
+	struct module_btf *btf_modules;
+	bool btf_modules_loaded;
+	size_t btf_module_cnt;
+	size_t btf_module_cap;
 
 	void *priv;
 	bpf_object_clear_priv_t clear_priv;
@@ -3960,6 +3973,36 @@ static int probe_prog_bind_map(void)
 	return ret >= 0;
 }
 
+static int probe_module_btf(void)
+{
+	static const char strs[] = "\0int";
+	__u32 types[] = {
+		/* int */
+		BTF_TYPE_INT_ENC(1, BTF_INT_SIGNED, 0, 32, 4),
+	};
+	struct bpf_btf_info info;
+	__u32 len = sizeof(info);
+	char name[16];
+	int fd, err;
+
+	fd = libbpf__load_raw_btf((char *)types, sizeof(types), strs, sizeof(strs));
+	if (fd < 0)
+		return 0; /* BTF not supported at all */
+
+	len = sizeof(info);
+	memset(&info, 0, sizeof(info));
+	info.name = ptr_to_u64(name);
+	info.name_len = sizeof(name);
+
+	/* check that BPF_OBJ_GET_INFO_BY_FD supports specifying name pointer;
+	 * kernel's module BTF support coincides with support for
+	 * name/name_len fields in struct bpf_btf_info.
+	 */
+	err = bpf_obj_get_info_by_fd(fd, &info, &len);
+	close(fd);
+	return !err;
+}
+
 enum kern_feature_result {
 	FEAT_UNKNOWN = 0,
 	FEAT_SUPPORTED = 1,
@@ -4003,7 +4046,10 @@ static struct kern_feature_desc {
 	},
 	[FEAT_PROG_BIND_MAP] = {
 		"BPF_PROG_BIND_MAP support", probe_prog_bind_map,
-	}
+	},
+	[FEAT_MODULE_BTF] = {
+		"module BTF support", probe_module_btf,
+	},
 };
 
 static bool kernel_supports(enum kern_feature_id feat_id)
@@ -4674,13 +4720,95 @@ static int bpf_core_add_cands(struct core_cand *local_cand,
 	return 0;
 }
 
+static int load_module_btfs(struct bpf_object *obj)
+{
+	struct bpf_btf_info info;
+	struct module_btf *mod_btf;
+	struct btf *btf;
+	char name[64];
+	__u32 id, len;
+	int err, fd;
+
+	if (obj->btf_modules_loaded)
+		return 0;
+
+	/* don't do this again, even if we find no module BTFs */
+	obj->btf_modules_loaded = true;
+
+	/* kernel too old to support module BTFs */
+	if (!kernel_supports(FEAT_MODULE_BTF))
+		return 0;
+
+	while (true) {
+		err = bpf_btf_get_next_id(id, &id);
+		if (err && errno == ENOENT)
+			return 0;
+		if (err) {
+			err = -errno;
+			pr_warn("failed to iterate BTF objects: %d\n", err);
+			return err;
+		}
+
+		fd = bpf_btf_get_fd_by_id(id);
+		if (fd < 0) {
+			if (errno == ENOENT)
+				continue; /* expected race: BTF was unloaded */
+			err = -errno;
+			pr_warn("failed to get BTF object #%d FD: %d\n", id, err);
+			return err;
+		}
+
+		len = sizeof(info);
+		memset(&info, 0, sizeof(info));
+		info.name = ptr_to_u64(name);
+		info.name_len = sizeof(name);
+
+		err = bpf_obj_get_info_by_fd(fd, &info, &len);
+		if (err) {
+			err = -errno;
+			pr_warn("failed to get BTF object #%d info: %d\n", id, err);
+			return err;
+		}
+
+		/* ignore non-module BTFs */
+		if (!info.kernel_btf || strcmp(name, "vmlinux") == 0) {
+			close(fd);
+			continue;
+		}
+
+		btf = btf_get_from_fd(fd, obj->btf_vmlinux);
+		close(fd);
+		if (IS_ERR(btf)) {
+			pr_warn("failed to load module [%s]'s BTF object #%d: %ld\n",
+				name, id, PTR_ERR(btf));
+			return PTR_ERR(btf);
+		}
+
+		err = btf_ensure_mem((void **)&obj->btf_modules, &obj->btf_module_cap,
+				     sizeof(*obj->btf_modules), obj->btf_module_cnt + 1);
+		if (err)
+			return err;
+
+		mod_btf = &obj->btf_modules[obj->btf_module_cnt++];
+
+		mod_btf->btf = btf;
+		mod_btf->id = id;
+		mod_btf->name = strdup(name);
+		if (!mod_btf->name)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
 static struct core_cand_list *
 bpf_core_find_cands(struct bpf_object *obj, const struct btf *local_btf, __u32 local_type_id)
 {
 	struct core_cand local_cand = {};
 	struct core_cand_list *cands;
+	const struct btf *main_btf;
 	size_t local_essent_len;
-	int err;
+	int err, i;
 
 	local_cand.btf = local_btf;
 	local_cand.t = btf__type_by_id(local_btf, local_type_id);
@@ -4697,15 +4825,38 @@ bpf_core_find_cands(struct bpf_object *obj, const struct btf *local_btf, __u32 l
 		return ERR_PTR(-ENOMEM);
 
 	/* Attempt to find target candidates in vmlinux BTF first */
-	err = bpf_core_add_cands(&local_cand, local_essent_len,
-				 obj->btf_vmlinux_override ?: obj->btf_vmlinux,
-				 "vmlinux", 1, cands);
-	if (err) {
-		bpf_core_free_cands(cands);
-		return ERR_PTR(err);
+	main_btf = obj->btf_vmlinux_override ?: obj->btf_vmlinux;
+	err = bpf_core_add_cands(&local_cand, local_essent_len, main_btf, "vmlinux", 1, cands);
+	if (err)
+		goto err_out;
+
+	/* if vmlinux BTF has any candidate, don't got for module BTFs */
+	if (cands->len)
+		return cands;
+
+	/* if vmlinux BTF was overridden, don't attempt to load module BTFs */
+	if (obj->btf_vmlinux_override)
+		return cands;
+
+	/* now look through module BTFs, trying to still find candidates */
+	err = load_module_btfs(obj);
+	if (err)
+		goto err_out;
+
+	for (i = 0; i < obj->btf_module_cnt; i++) {
+		err = bpf_core_add_cands(&local_cand, local_essent_len,
+					 obj->btf_modules[i].btf,
+					 obj->btf_modules[i].name,
+					 btf__get_nr_types(obj->btf_vmlinux) + 1,
+					 cands);
+		if (err)
+			goto err_out;
 	}
 
 	return cands;
+err_out:
+	bpf_core_free_cands(cands);
+	return ERR_PTR(err);
 }
 
 /* Check two types for compatibility for the purpose of field access
@@ -5756,7 +5907,7 @@ static int bpf_core_apply_relo(struct bpf_program *prog,
 	if (!hashmap__find(cand_cache, type_key, (void **)&cands)) {
 		cands = bpf_core_find_cands(prog->obj, local_btf, local_id);
 		if (IS_ERR(cands)) {
-			pr_warn("prog '%s': relo #%d: target candidate search failed for [%d] %s %s: %ld",
+			pr_warn("prog '%s': relo #%d: target candidate search failed for [%d] %s %s: %ld\n",
 				prog->name, relo_idx, local_id, btf_kind_str(local_type),
 				local_name, PTR_ERR(cands));
 			return PTR_ERR(cands);
@@ -5944,7 +6095,7 @@ bpf_object__relocate_core(struct bpf_object *obj, const char *targ_btf_path)
 	}
 
 out:
-	/* obj->btf_vmlinux is freed at the end of object load phase */
+	/* obj->btf_vmlinux and module BTFs are freed after object load */
 	btf__free(obj->btf_vmlinux_override);
 	obj->btf_vmlinux_override = NULL;
 
@@ -7303,6 +7454,14 @@ int bpf_object__load_xattr(struct bpf_object_load_attr *attr)
 	err = err ? : bpf_object__relocate(obj, attr->target_btf_path);
 	err = err ? : bpf_object__load_progs(obj, attr->log_level);
 
+	/* clean up module BTFs */
+	for (i = 0; i < obj->btf_module_cnt; i++) {
+		btf__free(obj->btf_modules[i].btf);
+		free(obj->btf_modules[i].name);
+	}
+	free(obj->btf_modules);
+
+	/* clean up vmlinux BTF */
 	btf__free(obj->btf_vmlinux);
 	obj->btf_vmlinux = NULL;
 
@@ -8656,9 +8815,6 @@ static inline int __find_vmlinux_btf_id(struct btf *btf, const char *name,
 	else
 		err = btf__find_by_name_kind(btf, name, BTF_KIND_FUNC);
 
-	if (err <= 0)
-		pr_warn("%s is not found in vmlinux BTF\n", name);
-
 	return err;
 }
 
@@ -8675,6 +8831,9 @@ int libbpf_find_vmlinux_btf_id(const char *name,
 	}
 
 	err = __find_vmlinux_btf_id(btf, name, attach_type);
+	if (err <= 0)
+		pr_warn("%s is not found in vmlinux BTF\n", name);
+
 	btf__free(btf);
 	return err;
 }
