Bug 2271495 (CVE-2021-47148)

Summary: CVE-2021-47148 kernel: octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context()
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, 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 5.12.9, kernel 5.13 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in octeontx2-pf driver of Linux Kernel, where a buffer overflow could occur due to insufficient bounds checking on the variable *rss_context. This could potentially lead to memory corruption. The issue has been addressed by implementing proper bounds checking to ensure that input size limits are respected, thereby preventing buffer overflows and enhancing system security within the octeontx2-pf driver.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2271565    

Description Mauro Matteo Cascella 2024-03-25 17:58:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context()

The Linux kernel CVE team has assigned CVE-2021-47148 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024032559-CVE-2021-47148-502f@gregkh/T
Comment 1 Alex 2024-06-09 15:11:33 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47148 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE OOB DANGER SIMPLEFIX NETWORK  ; 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.