Bug 2273156 (CVE-2024-26713)

Summary: CVE-2024-26713 kernel: powerpc/pseries/iommu: Fix iommu initialisation during DLPAR add
Product: [Other] Security Response Reporter: Robb Gatica <rgatica>
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, 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 6.6.18, kernel 6.7.6, kernel 6.8 Doc Type: If docs needed, set a value
Doc Text:
[REJECTED CVE] A vulnerability was identified in the Linux kernel’s powerpc/pseries/iommu subsystem, where dynamically adding a PCI device during Dynamic Logical Partitioning (DLPAR) could trigger a NULL pointer dereference, leading to a kernel oops. This occurred due to the missing initialization of the iommu_device structure in newly allocated pci_controller instances, unlike during system boot where iommu_device_register() is properly invoked. An attacker with the ability to repeatedly add and remove PCI devices could exploit this flaw to trigger system crashes, potentially causing a denial-of-service (DoS) condition
 Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2273157    
Bug Blocks: 2273132    

Description Robb Gatica 2024-04-03 23:30:00 UTC 
In the Linux kernel, the following vulnerability has been resolved:

powerpc/pseries/iommu: Fix iommu initialisation during DLPAR add

The Linux kernel CVE team has assigned CVE-2024-26713 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040342-CVE-2024-26713-1b52@gregkh/T
Comment 1 Robb Gatica 2024-04-03 23:30:35 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2273157]
Comment 2 Alex 2024-06-09 12:59:30 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26713 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: a940904443e432623579245babe63e2486ff327b	YES			NO	NO	unknown (where first YES/NO value means if related sources built).
Comment 3 TEJ RATHI 2025-02-20 11:42:26 UTC 
This CVE has been rejected upstream:
https://lore.kernel.org/linux-cve-announce/2024121918-REJECTED-111e@gregkh/