From: Mateusz Grzonka <mateusz.grzonka@intel.com>
Date: Wed, 5 Jul 2023 14:34:56 +0000 (+0200)
Subject: imsm: Fix possible segfault in check_no_platform()
X-Git-Tag: mdadm-4.3~51
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cf1577bf54afe76b77ecaa62df25901739ca8ae9;p=thirdparty%2Fmdadm.git

imsm: Fix possible segfault in check_no_platform()

conf_line() may return NULL, which is not handled and might cause
segfault.

Signed-off-by: Mateusz Grzonka <mateusz.grzonka@intel.com>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
---

diff --git a/super-intel.c b/super-intel.c
index ae0f4a8c..4ef33d31 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -650,6 +650,11 @@ static int check_no_platform(void)
 		char *l = conf_line(fp);
 		char *w = l;
 
+		if (l == NULL) {
+			fclose(fp);
+			return 0;
+		}
+
 		do {
 			if (strcmp(w, search) == 0)
 				no_platform = 1;