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OpenAdvisories
Unscored CVE-2023-40791 EUVD-2023-45342GHSA-fmxm-fv27-gg49

extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a…

Published Oct 16, 2023 · Updated Aug 2, 2024 · Assigned by mitre

Description

extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.4.13-1 —
Debian 13 linux 6.4.13-1 —
ReleasePackageFixed inAdvisory
Ubuntu 22.04 LTS linux-riscv +11 No fix yet —
Ubuntu 20.04 LTS linux-gke +26 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.135.1-2 —

Advisories 1

References