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(parent: b85f324) | patch
xfs: check for bogus values in btree block headers
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 9 Jan 2017 15:38:52 +0000 (16:38 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Jan 2017 10:39:43 +0000 (11:39 +0100)
commit4bb31bccea381ebadf0e1bc4433026613c15ce68
tree0485caecde31b9080b42a2e414d11c4f26f0d45atree | snapshot
parentb85f32481d93a23488d208fca4558e84515dc0f4commit | diff
xfs: check for bogus values in btree block headers

commit bb3be7e7c1c18e1b141d4cadeb98cc89ecf78099 upstream.

When we're reading a btree block, make sure that what we retrieved
matches the owner and level; and has a plausible number of records.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/xfs/libxfs/xfs_btree.c diff | blob | history
Beck SC1x5 Kernel