CVE-2020-12768 · cross-distro fix matrix

CVE-2020-12768: An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-12768 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

linux→ fixed in5.6.7-1urgency: unimportant

sudo apt-get install --only-upgrade -y linux

Debian bookworm

Source: Debian Security Tracker

linux→ fixed in5.6.7-1urgency: unimportant

sudo apt-get install --only-upgrade -y linux

Debian trixie

Source: Debian Security Tracker

linux→ fixed in5.6.7-1urgency: unimportant

sudo apt-get install --only-upgrade -y linux

Are YOU affected by CVE-2020-12768?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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