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
CVSS Score
4.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-366 |
| Vendor | red hat |
| Product | red hat enterprise linux 8 |
| Published | Oct 3, 2023 |
| Last Updated | Nov 7, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support
All versions affected Red Hat / Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6901 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:7077 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:7539 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0412 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-4732 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2236982