Bug 2182441 (CVE-2023-26544)

Summary:	CVE-2023-26544 kernel: ntfs3: use-after-free in run_unpack()
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
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, steve.beattie, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.2-rc1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-04-06 09:51:16 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:	2184959
Bug Blocks:	2173493

Description Pedro Sampaio 2023-03-28 16:21:27 UTC

In the Linux kernel 6.0.8, there is a use-after-free in run_unpack in fs/ntfs3/run.c, related to a difference between NTFS sector size and media sector size.

References:

https://lkml.org/lkml/2023/2/20/128

Comment 1 Mauro Matteo Cascella 2023-04-06 09:37:19 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2184959]

Comment 2 Mauro Matteo Cascella 2023-04-06 09:43:35 UTC

According to SUSE [1] this may have been fixed via commit 887bfc5460 ("fs/ntfs3: Fix slab-out-of-bounds read in run_unpack").

[1] https://bugzilla.suse.com/show_bug.cgi?id=1208697
[2] https://github.com/torvalds/linux/commit/887bfc5460

Comment 3 Justin M. Forbes 2023-04-06 15:51:54 UTC

This was fixed for Fedora with the 6.0.17 stable kernel updates.