Bug 2272800 (CVE-2024-26670)

Summary: CVE-2024-26670 kernel: arm64: entry: fix ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD
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, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, vsroka, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 6.6.15, kernel 6.7.3, kernel 6.8 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the Linux kernel. This issue occurs due to the incorrect placement of the TLBI and DSB instructions, which are not placed after all explicit memory accesses, creating the potential for speculative unprivileged loads.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2272801    
Bug Blocks: 2272924    

Description Mauro Matteo Cascella 2024-04-02 23:25:04 UTC 
In the Linux kernel, the following vulnerability has been resolved:

arm64: entry: fix ARM64_WORKAROUND_SPECULATIVE_UNPRIV_LOAD

The Linux kernel CVE team has assigned CVE-2024-26670 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040238-CVE-2024-26670-ecbd@gregkh/T
Comment 1 Mauro Matteo Cascella 2024-04-02 23:25:44 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2272801]
Comment 3 Justin M. Forbes 2024-04-03 16:45:07 UTC 
This was fixed for Fedora with the 6.7.3 stable kernel updates.
Comment 5 errata-xmlrpc 2024-11-12 09:21:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315