Bug 2281708 (CVE-2024-35882)

Summary:	CVE-2024-35882 kernel: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP
Product:	[Other] Security Response	Reporter:	ybuenos
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, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.6.26, kernel 6.8.5, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	A memory leak vulnerability was found in the Linux kernel's SUNRPC implementation for RPC-over-TCP. The issue occurs because the `sock_sendmsg()` function does not release all memory pages in the underlying `bio_vec` array, causing a slow memory leak that affects servers using NFS and can lead to memory exhaustion over time.	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:	2281709
Bug Blocks:	2281751

Description ybuenos 2024-05-20 12:12:44 UTC

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

SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP

The Linux kernel CVE team has assigned CVE-2024-35882 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051945-CVE-2024-35882-f7cf@gregkh/T

Comment 1 ybuenos 2024-05-20 12:13:30 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281709]

Comment 2 Alex 2024-06-09 13:55:04 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35882 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4	YES			NO	NO	unknown	 (where first YES/NO value means if related sources built).