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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2017-04-03 22:17:57 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-07 10:07:51 (GMT) |
| commit | de417ea6b0a607e79b765838d397c0eb0bcb62d9 (patch) | |
| tree | cf07884a3847d90cb5ab5704694fc38339265dd1 /fs/xfs/xfs_iomap.c | |
| parent | c2ad2dc3d2648d603e7ab7dff4c6b38122206673 (diff) | |
| download | linux-de417ea6b0a607e79b765838d397c0eb0bcb62d9.tar.xz | |
xfs: fix over-copying of getbmap parameters from userspace
commit be6324c00c4d1e0e665f03ed1fc18863a88da119 upstream.
In xfs_ioc_getbmap, we should only copy the fields of struct getbmap
from userspace, or else we end up copying random stack contents into the
kernel. struct getbmap is a strict subset of getbmapx, so a partial
structure copy should work fine.
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>
Diffstat (limited to 'fs/xfs/xfs_iomap.c')
0 files changed, 0 insertions, 0 deletions