From: Nathan Moinvaziri <nathan@nathanm.com>
Date: Tue, 13 Jan 2026 03:11:00 +0000 (-0800)
Subject: Check for null return value from getauxval(AT_PLATFORM)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95269ad8d31998f858c238347a4a5dc9676ba991;p=thirdparty%2Fzlib-ng.git

Check for null return value from getauxval(AT_PLATFORM)
---

diff --git a/arch/arm/arm_features.c b/arch/arm/arm_features.c
index 7eb43d128..d5eece1a3 100644
--- a/arch/arm/arm_features.c
+++ b/arch/arm/arm_features.c
@@ -207,9 +207,10 @@ static inline int arm_has_simd(void) {
     int has_simd = 0;
 #if defined(__linux__) && defined(HAVE_SYS_AUXV_H)
     const char *platform = (const char *)getauxval(AT_PLATFORM);
-    has_simd = strncmp(platform, "v6l", 3) == 0
+    has_simd = platform
+       && (strncmp(platform, "v6l", 3) == 0
         || strncmp(platform, "v7l", 3) == 0
-        || strncmp(platform, "v8l", 3) == 0;
+        || strncmp(platform, "v8l", 3) == 0);
 #elif defined(ARM_NOCHECK_SIMD)
     has_simd = 1;
 #endif