Validate there was no error retrieving symbol name corresponding to
a BPF map.
Acked-by: Song Liu <songliubraving@xxxxxx>
Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
---
tools/lib/bpf/libbpf.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index fe700ef1135d..e3c0144e454f 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -920,6 +920,11 @@ bpf_object__init_maps(struct bpf_object *obj, int flags)
map_name = elf_strptr(obj->efile.elf,
obj->efile.strtabidx,
sym.st_name);
+ if (!map_name) {
+ pr_warning("failed to get map #%d name sym string for obj %s\n",
+ map_idx, obj->path);
+ return -LIBBPF_ERRNO__FORMAT;
+ }
obj->maps[map_idx].libbpf_type = LIBBPF_MAP_UNSPEC;
obj->maps[map_idx].offset = sym.st_value;
--
2.17.1
