CVE-2026-72371
Received Received - Intake

AFS Volume Tree Handling Flaw in Linux Kernel

Vulnerability report for CVE-2026-72371, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix the volume AFS_VOLUME_RM_TREE is set on Fix afs_insert_volume_into_cell() to set AFS_VOLUME_RM_TREE on the volume replaced, not the new volume, as it's now removed from the cell's volume tree. This will cause the old volume to be removed from the tree twice and the new volume never to be removed.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux_kernel linux_kernel *

Helpful Resources

Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves a flaw in the AFS (Andrew File System) module where the function afs_insert_volume_into_cell incorrectly sets the AFS_VOLUME_RM_TREE flag on the new volume instead of the old one during a volume replacement. This causes the old volume to be removed twice and the new volume to never be removed from the cell's volume tree.

Detection Guidance

This vulnerability is specific to the Linux kernel's AFS (Andrew File System) module. Detection requires checking kernel logs for AFS-related errors or verifying if the affected function afs_insert_volume_into_cell() is present in the running kernel. Commands like dmesg | grep afs or checking kernel version against patched versions may help.

Impact Analysis

This vulnerability could lead to improper management of volumes in the AFS, potentially causing data inconsistencies or unexpected behavior in file system operations. Users relying on AFS for file storage may experience disruptions or loss of access to volumes.

Mitigation Strategies

Update the Linux kernel to the latest patched version that includes the fix for this AFS vulnerability. If immediate patching is not possible, consider disabling the AFS module temporarily using modprobe -r afs if it is not required.

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