Race Condition Affecting dlm-kmp-default package, versions <5.14.21-150400.24.21.2


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-SLES154-DLMKMPDEFAULT-3026691
  • published17 Sept 2022
  • disclosed16 Sept 2022

Introduced: 16 Sep 2022

CVE-2022-39188  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 dlm-kmp-default to version 5.14.21-150400.24.21.2 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:15.4 relevant fixed versions and status.

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.

CVSS Scores

version 3.1