Bug 2262051 (CVE-2024-2193, GhostRace, RHV-2024-0002)

Summary: CVE-2024-2193 hw: Spectre-SRC that is Speculative Race Conditions (SRCs) for synchronization primitives similar like Spectre V1 with possibility to bypass software features (e.g., IPIs, high-precision timers, etc)
Product: [Other] Security Response Reporter: Rohit Keshri <rkeshri>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, ajmitchell, allarkin, anprice, aquini, bhu, brdeoliv, chaekim, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, efuller, esandeen, ezulian, gsierohu, hkrzesin, iwienand, jamills, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jpoimboe, jsanemet, jshortt, jstancek, jwyatt, kcarcia, kgrant, ldoskova, lgoncalv, llong, lzampier, mcascell, mleitner, mmeeroll, mmilgram, mstowell, nmurray, pajung, ptalbert, rogbas, rparrazo, rrobaina, rvrbovsk, saroy, scweaver, security-response-team, sidakwo, stalexan, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A new cache speculation vulnerability, known as Spectre-SRC (Speculative Race Conditions), was found in hw. Spectre-SRC is similar to the Spectre v1 and allows speculative use-after-free. The difference between this issue and Spectre V1 is that this issue is based on synchronization primitives with the possibility to bypass software features such as IPIs and high-precision timers, which may disclose arbitrary data from a privileged component that should not be accessible.
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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: 2269332    
Bug Blocks: 2262049    

Description Rohit Keshri 2024-01-31 05:59:45 UTC 
Speculative Race Conditions (SRCs) for synchronization primitives similar like Spectre V1 with possibility to bypass software features (e.g., IPIs, high-precision timers, etc). In this flaw, all the common synchronization primitives can be microarchitecturally bypassed on speculative paths, turning all architecturally race-free critical regions into Speculative Race Conditions (SRCs). 

The goal of a GhostRace attack is to disclose arbitrary kernel data by exploiting a speculative race condition in an otherwise architecturally race-free critical region

Reference:
https://www.openwall.com/lists/oss-security/2024/03/12/14
Comment 32 Sandipan Roy 2024-03-13 08:02:38 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2269332]
Comment 33 Justin M. Forbes 2024-03-25 19:08:32 UTC 
This was mitigated for Fedora with the 6.7.6 stable kernel updates.