From eb7b0c76a82c88bb606e16f3a534545af739b13d Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 16 Feb 2020 00:27:10 +0100
Subject: [PATCH] Kernel: Remove SmapDisabler in sys$setgroups()

---
 Kernel/Process.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 1bc3bc3f11..51e68d979e 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -2618,17 +2618,21 @@ int Process::sys$getgroups(ssize_t count, gid_t* gids)
     return 0;
 }
 
-int Process::sys$setgroups(ssize_t count, const gid_t* gids)
+int Process::sys$setgroups(ssize_t count, const gid_t* user_gids)
 {
     REQUIRE_PROMISE(id);
     if (count < 0)
         return -EINVAL;
     if (!is_superuser())
         return -EPERM;
-    if (count && !validate_read(gids, count))
+    if (count && !validate_read(user_gids, count))
         return -EFAULT;
+
+    Vector<gid_t> gids;
+    gids.resize(count);
+    copy_from_user(gids.data(), user_gids, sizeof(gid_t) * count);
+
     m_extra_gids.clear();
-    SmapDisabler disabler;
     for (int i = 0; i < count; ++i) {
         if (gids[i] == m_gid)
             continue;