libbpf: Fix glob_syms memory leak in bpf_linker

[ Upstream commit 8cb125566c40b7141d8842c534f0ea5820ee3d5c ]

glob_syms array wasn't freed on bpf_link__free(). Fix that.

Fixes: a46349227cd8 ("libbpf: Add linker extern resolution support for functions and global variables")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211124002325.1737739-6-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
index 2df880c..84095a2 100644 (file)
--- a/tools/lib/bpf/linker.c
+++ b/tools/lib/bpf/linker.c
@@ -211,6 +211,7 @@ void bpf_linker__free(struct bpf_linker *linker)
        }
        free(linker->secs);
 
+       free(linker->glob_syms);
        free(linker);
 }