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(parent: efab3ae) | patch
xfs: check for obviously bad level values in the bmbt root
authorDarrick J. Wong <darrick.wong@oracle.com>
Thu, 2 Feb 2017 23:13:59 +0000 (15:13 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 8 Apr 2017 07:30:31 +0000 (09:30 +0200)
commit4056a74aafba368f763d5dd7ab92a5d74e098c1e
tree025a9f6adcfb836d2e65ca46c849b68a4155b30etree | snapshot
parentefab3ae29c154e6dd1e6c80e077bf3d51ad2829fcommit | diff
xfs: check for obviously bad level values in the bmbt root

commit b3bf607d58520ea8c0666aeb4be60dbb724cd3a2 upstream.

We can't handle a bmbt that's taller than BTREE_MAXLEVELS, and there's
no such thing as a zero-level bmbt (for that we have extents format),
so if we see this, send back an error code.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/xfs/libxfs/xfs_inode_fork.c diff | blob | history
Domain: System / Kernel;