From 45203e0ccbfaab5eafe3b6a7b8bb742182a83077 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Tue, 30 Apr 2019 07:14:09 +0200 Subject: [PATCH] efi_loader: memory leak in append value When printing an UEFI variable an error may arise while converting an illegal hexadecimal value. In this case a buffer is leaked. Close the memory leak. Provide an error message. Reported-by: Coverity (CID 185830) Signed-off-by: Heinrich Schuchardt --- cmd/nvedit_efi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/cmd/nvedit_efi.c b/cmd/nvedit_efi.c index e65b38dbf3..2805e8182b 100644 --- a/cmd/nvedit_efi.c +++ b/cmd/nvedit_efi.c @@ -291,8 +291,11 @@ static int append_value(char **bufp, size_t *sizep, char *data) if (!tmp_buf) return -1; - if (hex2bin((u8 *)tmp_buf, data, len) < 0) + if (hex2bin((u8 *)tmp_buf, data, len) < 0) { + printf("Error: illegal hexadecimal string\n"); + free(tmp_buf); return -1; + } value = tmp_buf; } else { /* string */ -- 2.30.2