xfs: clear kernel only flags in XFS_IOC_ATTRMULTI_BY_HANDLE

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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>

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Christoph Hellwig 2020-01-07 15:25:37 -08:00 • committed by Darrick J. Wong

parent 5a57c05b56

commit 953aa9d136

3 changed files with 9 additions and 2 deletions

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7

fs/xfs/libxfs/xfs_attr.h

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2

fs/xfs/xfs_ioctl.c

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2

fs/xfs/xfs_ioctl32.c

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