Race Condition Affecting dlm-kmp-default package, versions <5.3.18-24.43.2


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-SLES152-DLMKMPDEFAULT-3260545
  • published14 Apr 2022
  • disclosed10 Dec 2020

Introduced: 10 Dec 2020

CVE-2020-29369  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 dlm-kmp-default to version 5.3.18-24.43.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dlm-kmp-default package and not the dlm-kmp-default package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

CVSS Scores

version 3.1