Bug 2282742 (CVE-2023-52756)

Summary:	CVE-2023-52756 kernel: pwm: Fix double shift bug
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 4.14.331, kernel 4.19.300, kernel 5.4.262, kernel 5.10.202, kernel 5.15.140, kernel 6.1.64, kernel 6.5.13, kernel 6.6.3, kernel 6.7	Doc Type:	If docs needed, set a value
Doc Text:	[REJECTED CVE] A double shift vulnerability was identified in the Linux kernel's pwm subsystem. The issue involves passing a shifted value instead of a bit number to set/test_bit() functions, resulting in a double shift (e.g., BIT(BIT(1))). While this doesn't cause problems for values 0 or 1, values of 5 or higher could lead to a buffer overflow, potentially allowing attackers to cause a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2282859

Description Mauro Matteo Cascella 2024-05-22 20:37:52 UTC

In the Linux kernel, the following vulnerability has been resolved:

pwm: Fix double shift bug

The Linux kernel CVE team has assigned CVE-2023-52756 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052146-CVE-2023-52756-f694@gregkh/T

Comment 4 Alex 2024-06-09 14:22:38 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52756 is: 	SKIP	No affected files built, so skip this CVE	NO			-	-	unknown	 (where first YES/NO value means if related sources built).

Comment 7 errata-xmlrpc 2024-08-08 04:44:19 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:5102 https://access.redhat.com/errata/RHSA-2024:5102

Comment 8 errata-xmlrpc 2024-08-08 04:55:55 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:5101 https://access.redhat.com/errata/RHSA-2024:5101

Comment 9 errata-xmlrpc 2024-11-12 09:27:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315

Comment 10 TEJ RATHI 2024-12-03 04:00:36 UTC

This CVE has been rejected upstream: https://lore.kernel.org/linux-cve-announce/2024060850-REJECTED-39c1@gregkh/

Comment 11 errata-xmlrpc 2025-05-14 00:34:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:7526 https://access.redhat.com/errata/RHSA-2025:7526