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ce0b7a15bc
Processor features are stored in a union containing two "banks":
union hv_partition_processor_features {
uint64_t as_uint[2];
struct {
uint64_t sse3_support:1;
...
}
}
get_proc_features() to retrieve the 2nd bank was passing a pointer that
steps over the whole union (+16B) instead of picking the 2nd bank _in_
the union. This manifests in mismatching feature bits for the 2nd bank
and possibly other side-effects caused by writing beyond the union.
We need to step over the first bank (+8B) by using as_uint64[0/1] to
correct this behaviour.
Resolves: Coverity CID 1660876
Fixes: 2f6da91e8a ("accel/mshv: store partition proc features")
Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Reviewed-by: Doru Blânzeanu <dblanzeanu@linux.microsoft.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <20260701130335.418156-1-magnuskulke@linux.microsoft.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>