linux-kernel - [PATCH 5.11 169/254] libbpf: Fix error path in bpf_object__elf

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Message-Id: <20210329075638.722281973@linuxfoundation.org>
Date:   Mon, 29 Mar 2021 09:58:05 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.11 169/254] libbpf: Fix error path in bpf_object__elf_init()

From: Namhyung Kim <namhyung@...nel.org>

[ Upstream commit 8f3f5792f2940c16ab63c614b26494c8689c9c1e ]

When it failed to get section names, it should call into
bpf_object__elf_finish() like others.

Fixes: 88a82120282b ("libbpf: Factor out common ELF operations and improve logging")
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
Link: https://lore.kernel.org/bpf/20210317145414.884817-1-namhyung@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/lib/bpf/libbpf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index a0d4fc4de402..8913e5e7bedb 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1180,7 +1180,8 @@ static int bpf_object__elf_init(struct bpf_object *obj)
 	if (!elf_rawdata(elf_getscn(obj->efile.elf, obj->efile.shstrndx), NULL)) {
 		pr_warn("elf: failed to get section names strings from %s: %s\n",
 			obj->path, elf_errmsg(-1));
-		return -LIBBPF_ERRNO__FORMAT;
+		err = -LIBBPF_ERRNO__FORMAT;
+		goto errout;
 	}
 
 	/* Old LLVM set e_machine to EM_NONE */
-- 
2.30.1