Bug 2179680 (CVE-2023-26605)

Summary:	CVE-2023-26605 kernel: fs: use-after-free in inode_cgwb_move_to_attached()
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
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, ddepaula, debarbos, dfreiber, dhoward, dvlasenk, ezulian, fhrbata, hkrzesin, jarod, jburrell, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rogbas, rvrbovsk, scweaver, tyberry, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.1-rc7	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-19 22:01:10 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:	2179681
Bug Blocks:	2173495

Description Mauro Matteo Cascella 2023-03-19 18:36:36 UTC

NVD description: In the Linux kernel 6.0.8, there is a use-after-free in inode_cgwb_move_to_attached in fs/fs-writeback.c, related to __list_del_entry_valid.

Reference:
https://lkml.org/lkml/2023/2/22/3

Upstream patch & commit:
https://lore.kernel.org/r/20221115202001.324188-1-feldsherov@google.com
https://github.com/torvalds/linux/commit/4e3c51f4e805291b057d12f5dda5aeb50a538dc4

Comment 1 Mauro Matteo Cascella 2023-03-19 18:37:01 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2179681]

Comment 2 Product Security DevOps Team 2023-03-19 22:01:07 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-2023-26605

Comment 3 Justin M. Forbes 2023-03-21 12:57:17 UTC

This was resolved for Fedora with the 6.0.11 stable kernel updates.