CVE-2020-12768

MEDIUM

Linux kernel <5.6 - Memory Leak

Title source: llm

Description

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

References (7)

[Issue Tracking, Third Party Advisory] https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3

[Mailing List, Patch, Vendor Advisory] https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6

[Mailing List, Patch, Vendor Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d80b64ff297e40c2b6f7d7abc1b3eba70d22a068

[Third Party Advisory] https://usn.ubuntu.com/4411-1/

[Third Party Advisory] https://usn.ubuntu.com/4412-1/

[Third Party Advisory] https://usn.ubuntu.com/4413-1/

[Third Party Advisory] https://www.debian.org/security/2020/dsa-4699

Scores

CVSS v3 5.5

EPSS 0.0006

EPSS Percentile 17.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-401

Status published

Affected Products (5)

linux/linux_kernel < 5.6

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

debian/debian_linux

Timeline

Published May 09, 2020

Tracked Since Feb 18, 2026