Bug 2282939 (CVE-2021-47483)

Summary: CVE-2021-47483 kernel: regmap: Fix possible double-free in regcache_rbtree_exit()
Product: [Other] Security Response Reporter: ybuenos
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
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, rkeshri, 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 4.4.291, kernel 4.9.289, kernel 4.14.254, kernel 4.19.215, kernel 5.4.157, kernel 5.10.77, kernel 5.14.16, kernel 5.15 Doc Type: If docs needed, set a value
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2282978    

Description ybuenos 2024-05-23 10:41:01 UTC 
In the Linux kernel, the following vulnerability has been resolved:

regmap: Fix possible double-free in regcache_rbtree_exit()

The Linux kernel CVE team has assigned CVE-2021-47483 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052238-CVE-2021-47483-8306@gregkh/T
Comment 2 Alex 2024-06-09 17:32:48 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47483 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags KASAN  ; these flags parsed automatically based on patch 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.