--- /dev/null
+From cfe13b7a217075ae741c018da50cd600e5330de2 Mon Sep 17 00:00:00 2001
+From: Miklos Szeredi <mszeredi@suse.cz>
+Date: Fri, 22 May 2015 10:58:43 +0200
+Subject: [PATCH] libfuse: fix exec environment for mount and umount
+
+Found by Tavis Ormandy (CVE-2015-3202).
+---
+--- a/lib/mount_util.c
++++ b/lib/mount_util.c
+@@ -95,10 +95,12 @@ static int add_mount(const char *prognam
+ goto out_restore;
+ }
+ if (res == 0) {
++ char *env = NULL;
++
+ sigprocmask(SIG_SETMASK, &oldmask, NULL);
+ setuid(geteuid());
+- execl("/bin/mount", "/bin/mount", "--no-canonicalize", "-i",
+- "-f", "-t", type, "-o", opts, fsname, mnt, NULL);
++ execle("/bin/mount", "/bin/mount", "--no-canonicalize", "-i",
++ "-f", "-t", type, "-o", opts, fsname, mnt, NULL, &env);
+ fprintf(stderr, "%s: failed to execute /bin/mount: %s\n",
+ progname, strerror(errno));
+ exit(1);
+@@ -146,10 +148,17 @@ static int exec_umount(const char *progn
+ goto out_restore;
+ }
+ if (res == 0) {
++ char *env = NULL;
++
+ sigprocmask(SIG_SETMASK, &oldmask, NULL);
+ setuid(geteuid());
+- execl("/bin/umount", "/bin/umount", "-i", rel_mnt,
+- lazy ? "-l" : NULL, NULL);
++ if (lazy) {
++ execle("/bin/umount", "/bin/umount", "-i", rel_mnt,
++ "-l", NULL, &env);
++ } else {
++ execle("/bin/umount", "/bin/umount", "-i", rel_mnt,
++ NULL, &env);
++ }
+ fprintf(stderr, "%s: failed to execute /bin/umount: %s\n",
+ progname, strerror(errno));
+ exit(1);
+@@ -205,10 +214,12 @@ static int remove_mount(const char *prog
+ goto out_restore;
+ }
+ if (res == 0) {
++ char *env = NULL;
++
+ sigprocmask(SIG_SETMASK, &oldmask, NULL);
+ setuid(geteuid());
+- execl("/bin/umount", "/bin/umount", "--no-canonicalize", "-i",
+- "--fake", mnt, NULL);
++ execle("/bin/umount", "/bin/umount", "--no-canonicalize", "-i",
++ "--fake", mnt, NULL, &env);
+ fprintf(stderr, "%s: failed to execute /bin/umount: %s\n",
+ progname, strerror(errno));
+ exit(1);