Bug 2181342 (CVE-2023-1611)

Summary:	CVE-2023-1611 Kernel: race between quota disable and quota assign ioctls in fs/btrfs/ioctl.c
Product:	[Other] Security Response	Reporter:	Rohit Keshri <rkeshri>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	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:	kernel 5.10.177, kernel 5.15.106, kernel 6.1.23, kernel 6.2.10	Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel. This flaw allows an attacker to crash the system and possibly cause a kernel information lea	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-23 22:17:17 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:	2181346
Bug Blocks:	2181257

Description Rohit Keshri 2023-03-23 18:18:46 UTC

A slab-use-after-free read flaw was found in btrfs_search_slot in fs/btrfs/ctree.c

The quota assigned ioctl can currently run in parallel with a quota disable ioctl call. The assign ioctl uses the quota root, while the disable ioctl frees that root, and therefore we can have a use-after-free triggered in the assign ioctl.

Reference:
https://lore.kernel.org/linux-btrfs/35b9a70650ea947387cf352914a8774b4f7e8a6f.1679481128.git.fdmanana@suse.com/

Comment 2 Rohit Keshri 2023-03-23 18:46:48 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2181346]

Comment 4 Product Security DevOps Team 2023-03-23 22:17:14 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-2023-1611