In the Linux kernel, the following vulnerability has been resolved:

hwmon: (ibmpex) fix use-after-free in high/low store

The ibmpex_high_low_store() function retrieves driver data using
dev_get_drvdata() and uses it without validation. This creates a race
condition where the sysfs callback can be invoked after the data
structure is freed, leading to use-after-free.

Fix by adding a NULL check after dev_get_drvdata(), and reordering
operations in the deletion path to prevent TOCTOU.
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Fixes

Solution

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Workaround

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History

Tue, 13 Jan 2026 15:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: hwmon: (ibmpex) fix use-after-free in high/low store The ibmpex_high_low_store() function retrieves driver data using dev_get_drvdata() and uses it without validation. This creates a race condition where the sysfs callback can be invoked after the data structure is freed, leading to use-after-free. Fix by adding a NULL check after dev_get_drvdata(), and reordering operations in the deletion path to prevent TOCTOU.
Title hwmon: (ibmpex) fix use-after-free in high/low store
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-13T15:29:02.079Z

Reserved: 2025-12-24T10:30:51.037Z

Link: CVE-2025-68789

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-13T16:15:58.750

Modified: 2026-01-13T16:15:58.750

Link: CVE-2025-68789

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

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