Bug 1428491 (CVE-2017-6348)

Summary:	CVE-2017-6348 kernel: net: Improper lock dropping in the hashbin_delete function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aquini, bhu, dhoward, fhrbata, gansalmon, hwkernel-mgr, iboverma, ichavero, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, madhu.chinakonda, matt, mchehab, mcressma, nmurray, pholasek, plougher, rt-maint, rvrbovsk, williams, wmealing, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly manages lock dropping, which allows local users to cause a denial of service (deadlock) via crafted operations on IrDA devices.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:08:22 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:
Bug Blocks:	1428496

Description Andrej Nemec 2017-03-02 16:51:00 UTC

The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly manages lock dropping, which allows local users to cause a denial of service (deadlock) via crafted operations on IrDA devices.

Upstream patch:

https://github.com/torvalds/linux/commit/4c03b862b12f980456f9de92db6d508a4999b788

References:

http://seclists.org/oss-sec/2017/q1/5246

Comment 1 Wade Mealing 2017-03-28 06:18:21 UTC

Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5,  6, 7 and MRG-2  as the code with the flaw is not present in the products listed.