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While parsing the perf table, there is no check if the num of entries read from the vbios is less than the currently allocated number. In case of a buggy vbios this will cause overwriting of kernel memory, causing aditional problems. Add a simple check in order to prevent the case Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>