This would means that userspace would see return predictions based on the values the kernel 'stuffed' into the RSB to fill it. Potentially this leaks a kernel address to userspace.
KASLR pretty much died in May this year to be honest with the KAISER paper (if not before then) also with KPTI the address won't have a TLB mapping so it wouldn't actually be speculated into. -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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