CVE-2023-1476

Kpatch: mm/mremap.c: incomplete fix for cve-2022-41222

HIGH
7
CVSS Score
Published: November 3, 2023 at 08:07 AM UTC
Updated: June 17, 2026 at 05:28 AM UTC
6 products affected across 2 vendorsLinux KernelEnterprise LinuxEnterprise Linux Eus

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Severity
HIGH7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.14
Affected range stops below 5.14, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 8 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGHredhat
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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