forked from pool/mcelog
Thomas Renninger
169ca77588
A Start-consolidating-AMD-specific-stuff.patch A add_new_amd_cpu_defines A add-f10h-support.patch A add-f11h-support.patch A add-f12h-support.patch A add-f14h-support.patch A add-f15h-support.patch A add-f16h-support.patch OBS-URL: https://build.opensuse.org/package/show/Base:System/mcelog?expand=0&rev=122
30 lines
838 B
Diff
30 lines
838 B
Diff
---
|
|
mcelog.c | 9 +++++++++
|
|
1 file changed, 9 insertions(+)
|
|
|
|
--- a/mcelog.c
|
|
+++ b/mcelog.c
|
|
@@ -37,6 +37,7 @@
|
|
#include <assert.h>
|
|
#include <signal.h>
|
|
#include <pwd.h>
|
|
+#include <grp.h>
|
|
#include <sys/wait.h>
|
|
#include <fnmatch.h>
|
|
#include "mcelog.h"
|
|
@@ -1169,6 +1170,14 @@
|
|
|
|
static void drop_cred(void)
|
|
{
|
|
+ /* When dropping privileges from root, the `setgroups` call will
|
|
+ * remove any extraneous groups. If we don't call this, then
|
|
+ * even though our uid has dropped, we may still have groups
|
|
+ * that enable us to do super-user things. This will fail if we
|
|
+ * aren't root, so don't bother checking the return value, this
|
|
+ * is just done as an optimistic privilege dropping function.
|
|
+ */
|
|
+ setgroups(0, NULL);
|
|
if (runcred.uid != -1U && runcred.gid == -1U) {
|
|
struct passwd *pw = getpwuid(runcred.uid);
|
|
if (pw)
|