Bug 2210102 (CVE-2023-2898)

Summary:	CVE-2023-2898 kernel: A null-ptr-deref bug in f2fs_write_end_io in fs/f2fs/data.c
Product:	[Other] Security Response	Reporter:	Rohit Keshri <rkeshri>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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:		Doc Type:	If docs needed, set a value
Doc Text:	A null-pointer dereference flaw was found in f2fs_write_end_io in fs/f2fs/data.c in the Linux kernel. This issue may allow a local privileged user to cause a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-05-25 22:44:00 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:	2210105
Bug Blocks:	2209247

Description Rohit Keshri 2023-05-25 17:53:23 UTC

There is a null-pointer-dereference flaw found in f2fs_write_end_io in fs/f2fs/data.c in the Linux kernel. This flaw allows a local privileged user to cause a denial of service problem.

Refer:
https://lore.kernel.org/linux-f2fs-devel/20230522124203.3838360-1-chao@kernel.org/

Comment 1 Rohit Keshri 2023-05-25 18:03:31 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2210105]

Comment 2 Product Security DevOps Team 2023-05-25 22:43:57 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-2023-2898

Comment 3 Justin M. Forbes 2023-08-10 17:38:00 UTC

This was fixed for Fedora with the 6.4.4 stable kernel updates.