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由 Kevin Wolf 提交于
If a read request goes across EOF, the block driver sees a shortened request that stops at EOF (the rest is memsetted in block.c), however the original qiov was used for this request. This patch makes the qiov size match the request size, avoiding a potential buffer overflow in raw-posix. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NMax Reitz <mreitz@redhat.com>
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