From b3537ced353579b59e2421645707e9aeda64ff29 Mon Sep 17 00:00:00 2001
From: Veronika Hanulikova <vhanulik@redhat.com>
Date: Wed, 16 Feb 2022 11:59:27 +0100
Subject: [PATCH] Fix usage of pointer after realloc

---
 src/sm/sm-iso.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/sm/sm-iso.c b/src/sm/sm-iso.c
index 5baded77c6..2c3f6bcabd 100644
--- a/src/sm/sm-iso.c
+++ b/src/sm/sm-iso.c
@@ -181,13 +181,14 @@ static int format_le(size_t le, struct sc_asn1_entry *le_entry,
 
 static int prefix_buf(u8 prefix, u8 *buf, size_t buflen, u8 **cat)
 {
-	u8 *p;
+	u8 *p = NULL;
+	int ptr_same = *cat == buf;
 
 	p = realloc(*cat, buflen + 1);
 	if (!p)
 		return SC_ERROR_OUT_OF_MEMORY;
 
-	if (*cat == buf) {
+	if (ptr_same) {
 		memmove(p + 1, p, buflen);
 	} else {
 		/* Flawfinder: ignore */