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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-05-31 14:07:15 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-05-31 14:07:15 +0400
commite37c83c06c2690157a989df40dc99a6b61c9ea15 (patch)
tree024dfb8b2c9abeec9ca7cb0c0136c276d9aacc91 /fs/xfs/linux-2.6/xfs_ioctl.c
parentce1f7d30766f6549db6fa0b9e595e0d26a5b7d9a (diff)
parent67a3e12b05e055c0415c556a315a3d3eb637e29e (diff)
downloadlinux-e37c83c06c2690157a989df40dc99a6b61c9ea15.tar.xz
Merge commit 'v2.6.35-rc1' into for-2.6.36
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 4ea1ee18aded..699b60cbab9c 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -58,6 +58,7 @@
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/pagemap.h>
+#include <linux/slab.h>
#include <linux/exportfs.h>
/*
@@ -526,6 +527,10 @@ xfs_attrmulti_by_handle(
if (copy_from_user(&am_hreq, arg, sizeof(xfs_fsop_attrmulti_handlereq_t)))
return -XFS_ERROR(EFAULT);
+ /* overflow check */
+ if (am_hreq.opcount >= INT_MAX / sizeof(xfs_attr_multiop_t))
+ return -E2BIG;
+
dentry = xfs_handlereq_to_dentry(parfilp, &am_hreq.hreq);
if (IS_ERR(dentry))
return PTR_ERR(dentry);