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Review reviewHigh

CVE-2026-45914

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: Revert "hwmon: (ibmpex) fix use-after-free in high/low store" This reverts commit 6946c726c3f4c36f0f049e6f97e88c510b15f65d. Jean Delvare points out that the patch does not completely fix the reported problem, that it in fact introduces a (new) race condition, and that it may actually not be needed in the first place. Various AI reviews agree. Specific and relevant AI feedback: " This reordering sets the driver data to NULL before removing the sensor attributes in the loop below. ibmpex_show_sensor() retrieves this driver da...

CVSS
7.8
EPSS
0.13%
2.64% percentile
CISA KEV
Not listed
Published
2026.05.27
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: Revert "hwmon: (ibmpex) fix use-after-free in high/low store" This reverts commit 6946c726c3f4c36f0f049e6f97e88c510b15f65d. Jean Delvare points out that the patch does not completely fix the reported problem, that it in fact introduces a (new) race condition, and that it may actually not be needed in the first place. Various AI reviews agree. Specific and relevant AI feedback: " This reordering sets the driver data to NULL before removing the sensor attributes in the loop below. ibmpex_show_sensor() retrieves this driver da...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
3ce9b7ae9d4d148672b35147aaf7987a4f82bb94, 533ead425f8109b02fecc7e72d612b8898ec347a, fa37adcf1d564ef58b9dfb01b6c36d35c5294bad, 68d62e5bebbd118b763e8bb210d5cf2198ef450c, 5aa2139201667c1f644601e4529c4acd6bf8db5a, 6946c726c3f4c36f0f049e6f97e88c510b15f65d, 5.10.248, 6.1.160, 6.6.120, 6.12.64, 6.18.3, 6.19, >= 5.10.248 < 5.10.252, >= 6.1.160 < 6.1.165, >= 6.6.120 < 6.6.128, >= 6.12.64 < 6.12.75, >= 6.18.3 < 6.18.14, >= 6.19.1 < 6.19.4
Fixed versions
5.10.252, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4

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-416
CVE-2026-45914 — Linux Linux, linux kernel | SECUFOCUS NOW