CVE-2026-31410
Analyzed Analyzed - Analysis Complete
Improper Volume ID Handling in Linux ksmbd Causes Data Integrity Risk

Publication date: 2026-04-06

Last updated on: 2026-05-20

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: use volume UUID in FS_OBJECT_ID_INFORMATION Use sb->s_uuid for a proper volume identifier as the primary choice. For filesystems that do not provide a UUID, fall back to stfs.f_fsid obtained from vfs_statfs().
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-04-06
Last Modified
2026-05-20
Generated
2026-06-16
AI Q&A
2026-04-06
EPSS Evaluated
2026-06-15
NVD
CVE-2026-31410
EUVD
EUVD-2026-19194
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 6.13 (inc) to 6.18.20 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.10 (exc)
linux linux_kernel From 5.15 (inc) to 6.12.78 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability in the Linux kernel's ksmbd component relates to how the volume identifier is determined. Previously, the system may not have used the proper volume UUID as the primary identifier. The fix ensures that the volume UUID (sb->s_uuid) is used as the main volume identifier. If the filesystem does not provide a UUID, it falls back to using stfs.f_fsid obtained from vfs_statfs().

Impact Analysis

This vulnerability relates to the Linux kernel's ksmbd component using an improper volume identifier. The fix involves using the volume UUID as the primary identifier to ensure proper volume identification.

Improper volume identification could potentially lead to issues in file system operations or security mechanisms relying on unique volume identifiers, but specific impacts are not detailed.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-31410. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart