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
CVE-2023-4732

4.7MEDIUM

Key Information:

Vendor
Red Hat
Status
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.6 Extended Update Support
Red Hat Enterprise Linux 8.8 Extended Update Support
Red Hat Virtualization 4 For Red Hat Enterprise Linux 8
Vendor
CVE Published:
3 October 2023

Summary

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.

Affected Version(s)

Red Hat Enterprise Linux 8 0:4.18.0-513.5.1.rt7.307.el8_9

Red Hat Enterprise Linux 8 0:4.18.0-513.5.1.el8_9

Red Hat Enterprise Linux 8.6 Extended Update Support 0:4.18.0-372.87.1.el8_6

References

https://access.redhat.com/errata/RHSA-2023:6901
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:7077
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:7539
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.