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Description: information leak within a KVM guest
References:
https://www.openwall.com/lists/oss-security/2020/01/30/4
Notes:
carnil> Issue present since 0b9f6c4615c99 ("x86/kvm: Support the vCPU
carnil> preemption check") in 4.10-rc1. But might need double-check.
carnil> Fixed as well in 5.4.19. For 4.19.103 only one commit was
carnil> backported, is this already sufficient?
Bugs:
upstream: released (5.6-rc1) [8c6de56a42e0c657955e12b882a81ef07d1d073e, 1eff70a9abd46f175defafd29bc17ad456f398a7, 917248144db5d7320655dbb41d3af0b8a0f3d589, b043138246a41064527cf019a3d51d9f015e9796, a6bd811f1209fe1c64c9f6fd578101d6436c6b6e]
4.19-upstream-stable: released (4.19.103) [68460ceba319a46ea14b36129bfd0a152e0f00c3]
4.9-upstream-stable:
3.16-upstream-stable:
sid: pending (5.4.19-1)
4.19-buster-security: needed
4.9-stretch-security:
3.16-jessie-security:
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