Module Name: src
Committed By: kamil
Date: Fri Oct 4 22:48:46 UTC 2019
Modified Files:
src/sys/uvm: uvm_mmap.c
Log Message:
Avoid left shift changing the signedness flag
Reviewed by <mrg>
Reported-by: syzbot+25ac03024cedf27f3...@syzkaller.appspotmail.com
To generate a diff of this commit:
cvs rdiff -u -r1.173 -r1.174 src/sys/uvm/uvm_mmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/uvm/uvm_mmap.c
diff -u src/sys/uvm/uvm_mmap.c:1.173 src/sys/uvm/uvm_mmap.c:1.174
--- src/sys/uvm/uvm_mmap.c:1.173 Tue Aug 6 08:10:27 2019
+++ src/sys/uvm/uvm_mmap.c Fri Oct 4 22:48:45 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: uvm_mmap.c,v 1.173 2019/08/06 08:10:27 maxv Exp $ */
+/* $NetBSD: uvm_mmap.c,v 1.174 2019/10/04 22:48:45 kamil Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -46,7 +46,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_mmap.c,v 1.173 2019/08/06 08:10:27 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_mmap.c,v 1.174 2019/10/04 22:48:45 kamil Exp $");
#include "opt_compat_netbsd.h"
#include "opt_pax.h"
@@ -861,7 +861,7 @@ uvm_mmap(struct vm_map *map, vaddr_t *ad
if (align) {
if (align >= sizeof(vaddr_t) * NBBY)
return EINVAL;
- align = 1L << align;
+ align = 1UL << align;
if (align < PAGE_SIZE)
return EINVAL;
if (align >= vm_map_max(map))
