Bug 2271433 (CVE-2021-47167)

Summary: CVE-2021-47167 kernel: NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
Product: [Other] Security Response Reporter: Mauro Matteo Cascella <mcascell>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, showersd, 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 5.4.124, kernel 5.10.42, kernel 5.12.9, kernel 5.13 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the NFS module of the Linux kernel, where a potential system crash (Oops) occurred due to improper handling of the mirror array in __nfs_pageio_add_request(). The nfs_pageio_error_cleanup() function did not correctly reset the mirror array, leading to inconsistencies when the structure was empty.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2271579    

Description Mauro Matteo Cascella 2024-03-25 16:29:05 UTC 
In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix an Oopsable condition in __nfs_pageio_add_request()

The Linux kernel CVE team has assigned CVE-2021-47167 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024032535-CVE-2021-47167-c68c@gregkh/T
Comment 3 Alex 2024-06-09 15:08:21 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47167 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DISK SIMPLEFIX  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.