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From a5c8abd4a481ee6e27a3acf00e6d9b0f023e20ed Mon Sep 17 00:00:00 2001
From: Sebastien GODARD <sysstat@users.noreply.github.com>
Date: Mon, 9 Dec 2019 17:54:07 +0100
Subject: [PATCH] Fix #242: Double free in check_file_actlst()
Avoid freeing buffer() twice.
Signed-off-by: Sebastien GODARD <sysstat@users.noreply.github.com>
Upstream-Status: Backport [https://github.com/sysstat/sysstat/commit/a5c8abd4a481ee6e27a3acf00e6d9b0f023e20ed]
CVE: CVE-2019-19725
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
---
sa_common.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sa_common.c b/sa_common.c
index cf52aefe..856a3715 100644
--- a/sa_common.c
+++ b/sa_common.c
@@ -2153,6 +2153,7 @@ void check_file_actlst(int *ifd, char *dfile, struct activity *act[], uint64_t f
}
free(buffer);
+ buffer = NULL;
/* Check that at least one activity selected by the user is available in file */
for (i = 0; i < NR_ACT; i++) {
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