Debian/linux: high 7.4
arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests, aka CID-a58d9166a756
Action: Upgrade linux to 5.10.28-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.10.28-1 | - |
Fixed versions
| 5.10.28-1 |
Sources
- osv: DEBIAN-CVE-2021-29657#Debian:14/linux
- https://security-tracker.debian.org/tracker/CVE-2021-29657
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