Bug 2278218 (CVE-2024-26940)

Summary: CVE-2024-26940 kernel: drm/vmwgfx: Create debugfs ttm_resource_manager entry only if needed
Product: [Other] Security Response Reporter: Zack Miele <zmiele>
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, ndegraef, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, vsroka, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---Flags: ndegraef: needinfo? (zmiele)
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 6.1.84, kernel 6.6.24, kernel 6.7.12, kernel 6.8.3, kernel 6.9-rc2 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the vmwgfx module in the Linux kernel. Trying to read the /sys/kernel/debug/dri/0/mob_ttm file when the ttm_resource_manager is not allocated will cause a crash, resulting in a denial of service.
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Clone Of: Environment:
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Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2278219    
Bug Blocks: 2278552    

Description Zack Miele 2024-05-01 17:02:34 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Create debugfs ttm_resource_manager entry only if needed

The Linux kernel CVE team has assigned CVE-2024-26940 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050125-CVE-2024-26940-1785@gregkh/T

Comment 1 Zack Miele 2024-05-01 17:03:05 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278219]

Comment 7 errata-xmlrpc 2024-08-08 04:41:57 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:5102 https://access.redhat.com/errata/RHSA-2024:5102

Comment 8 errata-xmlrpc 2024-08-08 04:53:29 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:5101 https://access.redhat.com/errata/RHSA-2024:5101

Comment 9 errata-xmlrpc 2024-11-12 09:24:27 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