Module Name: src
Committed By: jakllsch
Date: Fri Mar 16 23:13:49 UTC 2012
Modified Files:
src/sys/fs/puffs: puffs_vnops.c
Log Message:
Prevent access beyond end of PUFFS file on read,
similar to as is done for NFS.
To generate a diff of this commit:
cvs rdiff -u -r1.163 -r1.164 src/sys/fs/puffs/puffs_vnops.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/fs/puffs/puffs_vnops.c
diff -u src/sys/fs/puffs/puffs_vnops.c:1.163 src/sys/fs/puffs/puffs_vnops.c:1.164
--- src/sys/fs/puffs/puffs_vnops.c:1.163 Tue Jan 17 09:30:16 2012
+++ src/sys/fs/puffs/puffs_vnops.c Fri Mar 16 23:13:48 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: puffs_vnops.c,v 1.163 2012/01/17 09:30:16 martin Exp $ */
+/* $NetBSD: puffs_vnops.c,v 1.164 2012/03/16 23:13:48 jakllsch Exp $ */
/*
* Copyright (c) 2005, 2006, 2007 Antti Kantee. All Rights Reserved.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: puffs_vnops.c,v 1.163 2012/01/17 09:30:16 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: puffs_vnops.c,v 1.164 2012/03/16 23:13:48 jakllsch Exp $");
#include <sys/param.h>
#include <sys/buf.h>
@@ -1862,6 +1862,9 @@ puffs_vnop_read(void *v)
const int advice = IO_ADV_DECODE(ap->a_ioflag);
while (uio->uio_resid > 0) {
+ if (vp->v_size <= uio->uio_offset) {
+ break;
+ }
bytelen = MIN(uio->uio_resid,
vp->v_size - uio->uio_offset);
if (bytelen == 0)
