CVE-2023-52731

CVE Details

Release Date:	2024-05-21
Impact:	Low	What is this?

Description

In the Linux kernel, the following vulnerability has been resolved:\nfbdev: Fix invalid page access after closing deferred I/O devices\nWhen a fbdev with deferred I/O is once opened and closed, the dirty\npages still remain queued in the pageref list, and eventually later\nthose may be processed in the delayed work. This may lead to a\ncorruption of pages, hitting an Oops.\nThis patch makes sure to cancel the delayed work and clean up the\npageref list at closing the device for addressing the bug. A part of\nthe cleanup code is factored out as a new helper function that is\ncalled from the common fb_release().

See more information about CVE-2023-52731 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	4.4
Vector String:	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	High
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14