From fe7bef3f09fea7c6795800f6fabbb5b25a101f43 Mon Sep 17 00:00:00 2001
From: Jan Polensky <japo@linux.ibm.com>
Date: Tue, 4 Mar 2025 14:29:57 +0100
Subject: [PATCH] cpumf/pai.c: Fix memory use after free
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Preventing a race condition by freeing the pmuname variable only after
its last usage.

Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
---
 cpumf/pai.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpumf/pai.c b/cpumf/pai.c
index f872d5a5..8e020f84 100644
--- a/cpumf/pai.c
+++ b/cpumf/pai.c
@@ -735,8 +735,8 @@ static int add_events(int type)
 	}
 
 	if (rc) {
-		free(pmuname);
 		warnx("failed building event list for %s", pmuname);
+		free(pmuname);
 	}
 	return rc;
 }