On Thu, Jul 14, 2022 at 11:01:12AM +0200, Greg Kroah-Hartman wrote:
On Thu, Jul 14, 2022 at 02:15:07PM +0530, Naresh Kamboju wrote:
Results from Linaro’s test farm.
We are booting the i386 kernel on an x86 machine. With Spectre V2 patches merged into Linux mainline we have been noticing RETBleed: WARNING: Spectre v2 mitigation leaves CPU vulnerable to RETBleed attacks, data leaks possible!
That's funny. I don't think that's a valid combination that should be cared about, but I'll leave it to Pawan to comment if it is something that is "real" to be concerned for.
Intel is not aware of production environments that use 32-bit mode on Skylake-gen CPUs. So this should not be a concern.
Thanks, Pawan