SB20260727336 - Improper resource shutdown or release in Linux kernel gpio driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-64241)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper resource shutdown or release in the gpio-rockchip driver remove path when handling device teardown and stray interrupts after driver removal. A local user can trigger a stray interrupt after the driver is removed to cause a denial of service.

The issue involves an uncleared chained IRQ handler that can leave a stale handler reachable after unbind.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/6be81e77e1748665d7ddab9128ff1d35eb75b87d
• https://git.kernel.org/stable/c/7f945f7f10f442270518dfd768d230227c495fcf
• https://git.kernel.org/stable/c/9500077678230e36d22bf16d2b9539c13e59a801
• https://git.kernel.org/stable/c/cdc603ce3118232712ba443dd8b414d8f25ca467