What’s Vulnerable › Vulnerabilities

CVE-2026-23091: intel_th: fix device leak on output open()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-04 · updated 2026-10-19
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: intel_th: fix device leak on output open() Make sure to drop the reference taken when looking up the th device during output device open() on errors and on close(). Note that a recent commit fixed the leak in a couple of open() error paths but not all of them, and the reference is still leaking on successful open().

Affected products

• Linux kernel: from 4.4 before 5.10.249; from 5.11 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.68; from 6.13 before 6.18.8 — fixed in 5.10.249, 5.15.199, 6.1.162, 6.12.68, 6.18.8, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 5.10.249, 5.15.199, 6.1.162, 6.12.68. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0fca16c5591534cc1fec8b6181277ee3a3d0f26c
• https://git.kernel.org/stable/c/64015cbf06e8bb75b81ae95b997e847b55280f7f
• https://git.kernel.org/stable/c/95fc36a234da24bbc5f476f8104a5a15f99ed3e3
• https://git.kernel.org/stable/c/af4b9467296b9a16ebc008147238070236982b6d
• https://git.kernel.org/stable/c/b71e64ef7ff9443835d1333e3e80ab1e49e5209f
• https://git.kernel.org/stable/c/bf7785434b5d05d940d936b78925080950bd54dd
• https://git.kernel.org/stable/c/f9b059bda4276f2bb72cb98ec7875a747f042ea2

Get alerted when CVE-2026-23091 or the next vulnerability affects your stack