Commit 1000298c authored by Mauricio Vásquez's avatar Mauricio Vásquez Committed by Andrii Nakryiko
Browse files

libbpf: Fix memory leak in btf__dedup() 



Free btf_dedup if btf_ensure_modifiable() returns error.

Fixes: 919d2b1d ("libbpf: Allow modification of BTF and add btf__add_str API")
Signed-off-by: default avatarMauricio Vásquez <mauricio@kinvolk.io>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211022202035.48868-1-mauricio@kinvolk.io
parent 57385ae3

tools/lib/bpf/btf.c

+4 −2
Original line number Diff line number Diff line
@@ -2991,8 +2991,10 @@ int btf__dedup(struct btf *btf, struct btf_ext *btf_ext, 
		return libbpf_err(-EINVAL);

	}



	if (btf_ensure_modifiable(btf))

		return libbpf_err(-ENOMEM);

	if (btf_ensure_modifiable(btf)) {

		err = -ENOMEM;

		goto done;

	}



	err = btf_dedup_prep(d);

	if (err) {