diff options
| author | Mike O'Connor <mjo@dojo.mi.org> | 2006-02-15 00:17:24 -0500 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2006-03-01 14:36:38 -0800 |
| commit | 8dcd7c19f2624b7150edd60da336da0bb5291bef (patch) | |
| tree | 0a85c63e8e7d00b1bf0f1a2f5b5f4cfbc8f244f2 | |
| parent | 6cbb463db05210e83ddc18cbd92e295f1fefa111 (diff) | |
[PATCH] XFS ftruncate() bug could expose stale data (CVE-2006-0554)
This is CVE-2006-0554 and SGI bug 942658. With certain types of
ftruncate() activity on 2.6 kernels, XFS can end up exposing stale
data off disk to a user, putting extents where holes should be.
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_aops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 94d3cdfbf9b8..c4ac008a5201 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -385,7 +385,7 @@ xfs_probe_unmapped_cluster( /* First sum forwards in this page */ do { - if (buffer_mapped(bh)) + if (buffer_mapped(bh) || !buffer_uptodate(bh)) break; total += bh->b_size; } while ((bh = bh->b_this_page) != head); |