Description: Zenbleed
References:
 https://www.openwall.com/lists/oss-security/2023/07/24/1
 https://lock.cmpxchg8b.com/zenbleed.html
 https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7008.html
 https://github.com/google/security-research/security/advisories/GHSA-v6wh-rxpg-cmm8
 https://xenbits.xen.org/xsa/advisory-433.html
Notes:
 carnil> Technically not a linux issue but track with the CVE entry as well
 carnil> the kernel side mitigations for the issue in case no amd64-microcode
 carnil> update is available and we need the fallback to the chicken bit set.
Bugs:
upstream: released (6.5-rc4) [522b1d69219d8f083173819fde04f994aa051a98]
6.1-upstream-stable: released (6.1.41) [ed9b87010aa84c157096f98c322491e9af8e8f07]
5.10-upstream-stable: released (5.10.187) [93df00f9d48d48466ddbe01a06eaaf3311ecfb53]
4.19-upstream-stable: released (4.19.289) [cfef7bbf0dca27209ea5d82d7060d4fc2c0d72ea]
sid: released (6.4.4-2) [bugfix/x86/x86-cpu-amd-Add-a-Zenbleed-fix.patch]
6.1-bookworm-security: released (6.1.38-2) [bugfix/x86/x86-cpu-amd-Add-a-Zenbleed-fix.patch]
5.10-bullseye-security: released (5.10.179-3) [bugfix/x86/x86-cpu-amd-Add-a-Zenbleed-fix.patch]
4.19-buster-security: released (4.19.289-1)