Riskcovery

CVE-2023-4732

Kernel: race between task migrating pages and another task calling exit_mmap to release those same pages getting invalid opcode bug in include/linux/swapops.h

State
Published
Severity
4.7 Medium
Published
Oct 3, 2023
Updated
Nov 7, 2025
Reserved
Sep 2, 2023

Read the record on cve.org

Description

A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.

Scores

CVSSScoreVectorSource
3.14.7 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hredhat

Weaknesses

  • CWE-366 Race Condition within a Thread

Affected Products

ProductVersions
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-513.5.1.rt7.307.el8_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-513.5.1.el8_9 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat
  • 0:4.18.0-372.87.1.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat
  • 0:4.18.0-477.36.1.el8_8 and laterNot affected
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-372.87.1.el8_6 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 9Red Hat
          Red Hat Enterprise Linux 9Red Hat

            References

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