Bug 2273164 (CVE-2024-26709) - CVE-2024-26709 kernel: powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach
Summary: CVE-2024-26709 kernel: powerpc/iommu: Fix the missing iommu_group_put() durin...
Keywords:
Status: NEW
Alias: CVE-2024-26709
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2273165
Blocks: 2273132
TreeView+ depends on / blocked
 
Reported: 2024-04-03 23:35 UTC by Robb Gatica
Modified: 2024-09-19 21:26 UTC (History)
49 users (show)

Fixed In Version: kernel 6.7.6, kernel 6.8
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the spapr_tce_platform_iommu_attach_dev() function in the Linux kernel, where a missing call to the iommu_group_put() function can lead to a reference count leak for IOMMU groups during DLPAR operations. This vulnerability could lead to kernel panics and instability.
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Description Robb Gatica 2024-04-03 23:35:01 UTC 
In the Linux kernel, the following vulnerability has been resolved:

powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach

The Linux kernel CVE team has assigned CVE-2024-26709 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024040341-CVE-2024-26709-19b4@gregkh/T
Comment 1 Robb Gatica 2024-04-03 23:35:34 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2273165]
Comment 2 Alex 2024-06-09 13:19:14 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26709 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: a8ca9fc9134c1a43e6d4db7ff59496bbd7075def	YES			NO	NO	unknown (where first YES/NO value means if related sources built).
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