Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Prevent use after free. Don't free an interrupt source still in use.

Browse Source 
Ok: Kengo NAKAHARA
This commit is contained in:
hannken 2016-06-20 08:14:06 +00:00
parent 115160e654
commit cd8006c457
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/arch/x86/x86/intr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: intr.c,v 1.91 2015/11/17 10:34:04 hannken Exp $ */
/* $NetBSD: intr.c,v 1.92 2016/06/20 08:14:06 hannken Exp $ */
/*-
* Copyright (c) 2007, 2008, 2009 The NetBSD Foundation, Inc.
@ -133,7 +133,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.91 2015/11/17 10:34:04 hannken Exp $");
__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.92 2016/06/20 08:14:06 hannken Exp $");
#include "opt_intrdebug.h"
#include "opt_multiprocessor.h"
@ -612,6 +612,11 @@ intr_free_io_intrsource(const char *intrid)
return;
}
/* If the interrupt uses shared IRQ, don't free yet. */
if (isp->is_handlers != NULL) {
return;
}
intr_free_io_intrsource_direct(isp);
}