Christoph Hellwig 3bade9aa12 xfs: clear kernel only flags in XFS_IOC_ATTRMULTI_BY_HANDLE ...

commit 953aa9d136 upstream.

Don't allow passing arbitrary flags as they change behavior including
memory allocation that the call stack is not prepared for.

Fixes: ddbca70cc4 ("xfs: allocate xattr buffer on demand")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-03-05 16:45:25 +01:00

17 KiB

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