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-rw-r--r--tools/bpf/bpftool/feature.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c
index 1cd75807673e..a43a6f10b564 100644
--- a/tools/bpf/bpftool/feature.c
+++ b/tools/bpf/bpftool/feature.c
@@ -504,6 +504,10 @@ probe_prog_type(enum bpf_prog_type prog_type, bool *supported_types,
supported_types[prog_type] |= res;
+ if (!prog_type_name[prog_type]) {
+ p_info("program type name not found (type %d)", prog_type);
+ return;
+ }
maxlen = sizeof(plain_desc) - strlen(plain_comment) - 1;
if (strlen(prog_type_name[prog_type]) > maxlen) {
p_info("program type name too long");
@@ -533,6 +537,10 @@ probe_map_type(enum bpf_map_type map_type, const char *define_prefix,
* check required for unprivileged users
*/
+ if (!map_type_name[map_type]) {
+ p_info("map type name not found (type %d)", map_type);
+ return;
+ }
maxlen = sizeof(plain_desc) - strlen(plain_comment) - 1;
if (strlen(map_type_name[map_type]) > maxlen) {
p_info("map type name too long");