--- /dev/null
+From a6414400ec94a17871081f7df24f910a6ee01b8b Mon Sep 17 00:00:00 2001
+From: Ali Abdallah <aabdallah@suse.de>
+Date: Wed, 24 Nov 2021 13:33:39 +0100
+Subject: [PATCH] CVE-2021-41617 fix
+
+backport of the following two upstream commits
+
+f3cbe43e28fe71427d41cfe3a17125b972710455
+bf944e3794eff5413f2df1ef37cddf96918c6bde
+
+CVE-2021-41617 failed to correctly initialise supplemental groups
+when executing an AuthorizedKeysCommand or AuthorizedPrincipalsCommand,
+where a AuthorizedKeysCommandUser or AuthorizedPrincipalsCommandUser
+directive has been set to run the command as a different user. Instead
+these commands would inherit the groups that sshd(8) was started with.
+---
+ auth.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+CVE: CVE-2021-41617
+Upstream-Status: Backport [https://bugzilla.suse.com/attachment.cgi?id=854015]
+Comment: No change in any hunk
+Signed-off-by: Sana Kazi <Sana.Kazi@kpit.com>
+
+diff --git a/auth.c b/auth.c
+index 163038f..a47b267 100644
+--- a/auth.c
++++ b/auth.c
+@@ -52,6 +52,7 @@
+ #include <limits.h>
+ #include <netdb.h>
+ #include <time.h>
++#include <grp.h>
+
+ #include "xmalloc.h"
+ #include "match.h"
+@@ -851,6 +852,13 @@ subprocess(const char *tag, struct passwd *pw, const char *command,
+ }
+ closefrom(STDERR_FILENO + 1);
+
++ if (geteuid() == 0 &&
++ initgroups(pw->pw_name, pw->pw_gid) == -1) {
++ error("%s: initgroups(%s, %u): %s", tag,
++ pw->pw_name, (u_int)pw->pw_gid, strerror(errno));
++ _exit(1);
++ }
++
+ /* Don't use permanently_set_uid() here to avoid fatal() */
+ if (setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) == -1) {
+ error("%s: setresgid %u: %s", tag, (u_int)pw->pw_gid,
+--
+2.26.2
