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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2021-05-24 18:40:20 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-03 11:50:53 +0300 |
| commit | 63947b3434f475418b9677a393d025c0962c2cf8 (patch) | |
| tree | 96114c339dce8f5912b75e40f65277fccff4cca5 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 7a43ce37cd595ed7b6e6a48bdb3a598e647aa738 (diff) | |
| download | linux-63947b3434f475418b9677a393d025c0962c2cf8.tar.xz | |
virtio-blk: limit seg_max to a safe value
The struct virtio_blk_config seg_max value is read from the device and
incremented by 2 to account for the request header and status byte
descriptors added by the driver.
In preparation for supporting untrusted virtio-blk devices, protect
against integer overflow and limit the value to a safe maximum.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://lore.kernel.org/r/20210524154020.98195-1-stefanha@redhat.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions