Changeset 104243 in vbox for trunk/src

Timestamp:

Apr 9, 2024 7:16:25 AM (10 months ago)

Author:

vboxsync

Message:

HostDrivers/Support/SUPDrv-linux.c: Return the real effective user ID and not what it is mapped to in the current namespace, bugref:10642

File:

• trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c

@@ -309 +309 @@
 
 #ifdef VBOX_WITH_HARDENING
-/** Get the effective UID within the current user namespace. */
-DECLINLINE(RTUID) vboxdrvLinuxEuidInNs(void)
+/** Get the effective UID of the current process. */
+DECLINLINE(RTUID) vboxdrvLinuxEuid(void)
 {
 # if RTLNX_VER_MIN(2,6,29)
 #  if RTLNX_VER_MIN(3,5,0)
-    return from_kuid(current_user_ns(), current->cred->euid);
+    return __kuid_val(current->cred->euid);
 #  else
     return current->cred->euid;
@@ -493 +493 @@
      */
     if (   fUnrestricted
-        && vboxdrvLinuxEuidInNs() != 0 /* root */ )
-    {
-        Log(("VBoxDrvLinuxCreate: euid=%d, expected 0 (root)\n", vboxdrvLinuxEuidInNs()));
+        && vboxdrvLinuxEuid() != 0 /* root */ )
+    {
+        Log(("VBoxDrvLinuxCreate: euid=%d, expected 0 (root)\n", vboxdrvLinuxEuid()));
         return -EPERM;
     }