Bug 2182680 (CVE-2023-23004)

Summary:	CVE-2023-23004 kernel: incorrect check for error case in the malidp_check_pages_threshold
Product:	[Other] Security Response	Reporter:	Alex <allarkin>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, bhu, chwhite, crwood, dbohanno, ddepaula, debarbos, dfreiber, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, ldoskova, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rogbas, rrobaina, rvrbovsk, rysulliv, scweaver, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A NULL pointer dereference flaw was found in the Linux kernel's Mali-DP Device Driver. This flaw allows a local user to crash the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-29 14:32:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2182681
Bug Blocks:	2174642

Description Alex 2023-03-29 10:34:48 UTC

A flaw in the Linux Kenel found. In the function malidp_check_pages_threshold, there incorrect check of return value. The fix of NULL to IS_ERR() required, because the get_sg_table() function does not return NULL. It returns error pointers.

Reference:
https://github.com/torvalds/linux/commit/15342f930ebebcfe36f2415049736a77d7d2e045

Comment 1 Alex 2023-03-29 10:35:16 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2182681]

Comment 3 Product Security DevOps Team 2023-03-29 14:32:23 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-23004

Comment 4 Justin M. Forbes 2023-04-06 16:01:49 UTC

This was fixed for Fedora with the 5.19 stable kernel rebases.