This is a note to let you know that I've just added the patch titled
xfs: sanity check inode di_mode
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xfs-sanity-check-inode-di_mode.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From hch@xxxxxx Thu Feb 2 11:14:54 2017
From: Christoph Hellwig <hch@xxxxxx>
Date: Thu, 2 Feb 2017 08:56:03 +0100
Subject: xfs: sanity check inode di_mode
To: stable@xxxxxxxxxxxxxxx
Cc: linux-xfs@xxxxxxxxxxxxxxx, Amir Goldstein <amir73il@xxxxxxxxx>, "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
Message-ID: <1486022171-8076-12-git-send-email-hch@xxxxxx>
From: Amir Goldstein <amir73il@xxxxxxxxx>
commit a324cbf10a3c67aaa10c9f47f7b5801562925bc2 upstream.
Check for invalid file type in xfs_dinode_verify()
and fail to load the inode structure from disk.
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/xfs/libxfs/xfs_inode_buf.c | 3 +++
1 file changed, 3 insertions(+)
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -29,6 +29,7 @@
#include "xfs_icache.h"
#include "xfs_trans.h"
#include "xfs_ialloc.h"
+#include "xfs_dir2.h"
/*
* Check that none of the inode's in the buffer have a next
@@ -398,6 +399,8 @@ xfs_dinode_verify(
return false;
mode = be16_to_cpu(dip->di_mode);
+ if (mode && xfs_mode_to_ftype(mode) == XFS_DIR3_FT_UNKNOWN)
+ return false;
/* No zero-length symlinks/dirs. */
if ((S_ISLNK(mode) || S_ISDIR(mode)) && dip->di_size == 0)
Patches currently in stable-queue which might be from hch@xxxxxx are
queue-4.9/xfs-don-t-rely-on-total-in-xfs_alloc_space_available.patch
queue-4.9/xfs-replace-xfs_mode_to_ftype-table-with-switch-statement.patch
queue-4.9/xfs-fix-bogus-minleft-manipulations.patch
queue-4.9/xfs-fix-cow-writeback-race.patch
queue-4.9/xfs-sanity-check-inode-mode-when-creating-new-dentry.patch
queue-4.9/xfs-extsize-hints-are-not-unlikely-in-xfs_bmap_btalloc.patch
queue-4.9/xfs-bump-up-reserved-blocks-in-xfs_alloc_set_aside.patch
queue-4.9/xfs-add-missing-include-dependencies-to-xfs_dir2.h.patch
queue-4.9/xfs-fix-bmv_count-confusion-w-shared-extents.patch
queue-4.9/xfs-adjust-allocation-length-in-xfs_alloc_space_available.patch
queue-4.9/xfs-verify-dirblocklog-correctly.patch
queue-4.9/xfs-fix-xfs_mode_to_ftype-prototype.patch
queue-4.9/xfs-clear-_xbf_pages-from-buffers-when-readahead-page.patch
queue-4.9/xfs-remove-racy-hasattr-check-from-attr-ops.patch
queue-4.9/xfs-make-the-assert-condition-likely.patch
queue-4.9/xfs-sanity-check-directory-inode-di_size.patch
queue-4.9/xfs-don-t-print-warnings-when-xfs_log_force-fails.patch
queue-4.9/xfs-don-t-wrap-id-in-xfs_dq_get_next_id.patch
queue-4.9/xfs-sanity-check-inode-di_mode.patch
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