PT-2024-21482 · Linux · Linux Kernel

Venkat Rao Bagalkote · CVE-2024-26709 · Published 2024-02-14 · Updated 2025-01-13

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.8.0-rc3-autotest-g99bd3cb0d12e

Description A vulnerability in the Linux kernel has been resolved, specifically in the powerpc/iommu component. The issue arises from a missing call to iommu group put() during platform domain attachment when the domain is already set. This refcount leak is evident during DLPAR remove operations, resulting in a kernel bug. The patch adds the missing iommu group put() call to rectify this issue.

Recommendations To resolve this issue, update the Linux kernel to a version that includes the patch for the missing iommu group put() call. Specifically, update to a version later than 6.8.0-rc3-autotest-g99bd3cb0d12e. As a temporary workaround, consider disabling the spapr tce platform iommu attach dev() function until a patch is available. However, this workaround may have unintended consequences and should be used with caution.

Exploit

Fix

Weakness Enumeration

CWE-402

Related Identifiers

BDU:2025-04399

CVE-2024-26709

Affected Products

Linux Kernel

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26709.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-26709 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-26709 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2024-26709 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-26709 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-04399 · Security Note
• https://osv.dev/vulnerability/CVE-2024-26709 · Vendor Advisory
• https://git.kernel.org/stable/c/c90fdea9cac9eb419fc266e75d625cb60c8f7f6c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-26709 · Security Note
• https://ubuntu.com/security/CVE-2024-26709 · Vendor Advisory
• https://git.kernel.org/stable/c/0846dd77c8349ec92ca0079c9c71d130f34cb192 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-26709 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2024-26709 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.6 · Note