Review reviewHigh

CVE-2025-38101

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set() Enlarge the critical section in ring_buffer_subbuf_order_set() to ensure that error handling takes place with per-buffer mutex held, thus preventing list corruption and other concurrency-related issues.

CVSS
7.8
EPSS
0.17%
6.34% percentile
CISA KEV
Not listed
Published
2025.07.03
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.17%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set() Enlarge the critical section in ring_buffer_subbuf_order_set() to ensure that error handling takes place with per-buffer mutex held, thus preventing list corruption and other concurrency-related issues.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= f9b94daa542a8d2532f0930f01cd9aec2d19621b < e09c0600beea469b3ebf974464e526a02d59ad62, >= f9b94daa542a8d2532f0930f01cd9aec2d19621b < 0fc9a295cd8e59c3636e97395e7c74a9c89fee42, >= f9b94daa542a8d2532f0930f01cd9aec2d19621b < 40ee2afafc1d9fe3aa44a6fbe440d78a5c96a72e, >= 6.8, >= 6.8 < 6.12.34, >= 6.13 < 6.15.3
Fixed versions
6.12.34, 6.15.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787