Plug a memory leak in dup2 when both old and new fd have ioctl caps.

Reviewed by: pjd MFC after: 3 days
2014-01-03 16:36:55 +00:00 · 2014-01-03 16:36:55 +00:00 · 231a0fe857
commit 231a0fe857
parent 0918d4b21f
1 changed files with 1 additions and 0 deletions
--- a/sys/kern/kern_descrip.c
+++ b/sys/kern/kern_descrip.c
@ -878,6 +878,7 @@ do_dup(struct thread *td, int flags, int old, int new,
 	/*
 	 * Duplicate the source descriptor.
 	 */
+	filecaps_free(&newfde->fde_caps);
 	*newfde = *oldfde;
 	filecaps_copy(&oldfde->fde_caps, &newfde->fde_caps);
 	if ((flags & DUP_CLOEXEC) != 0)