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authorPaul Mundt <lethal@linux-sh.org>2010-05-24 08:52:55 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-05-24 08:52:55 +0900
commit1f782fee18b39b9ad438ebbd82c2915a16c879ee (patch)
treef292930065e6c860714c134790ab8882680ac739 /fs/xfs/linux-2.6/xfs_ioctl.c
parent8eda2f21ed9c936a54fd7bc16cbfa5ee656635c2 (diff)
parentf4b87dee923342505e1ddba8d34ce9de33e75050 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 7b26cc2fd28..699b60cbab9 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -527,6 +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);