[Mesa-dev] [PATCH 6/7] mesa: Skip looking at debug environment variables when setuid.

[Eric Anholt]

When a driver is loaded by the setuid root X Server, you don't want
the debug flags to apply in case they can be used for nefarious
purposes.
---
 src/mesa/main/imports.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index 82713a1..f371c7a 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -49,6 +49,7 @@
 #include "mtypes.h"
 #include "version.h"
 
+#include <unistd.h>
 #ifdef _GNU_SOURCE
 #include <locale.h>
 #ifdef __APPLE__
@@ -726,6 +727,9 @@ _mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
 char *
 _mesa_getenv( const char *var )
 {
+   if (geteuid() != getuid())
+      return NULL;
+
 #if defined(_XBOX) || defined(_WIN32_WCE)
    return NULL;
 #else
-- 
1.7.9.1