CVE-2026-43087

medium Red Hat
EPSS Score
0.0%
Exploitation probability in 30 days
Top 95% most likely to be exploited
Published: May 6, 2026 (8 days ago)
Last Modified: May 6, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's `pinctrl` subsystem, specifically within the `mcp23s08` driver. During system initialization, a hardware chip may have its interrupt-on-change feature enabled on certain pins. This can cause the system to generate interrupts for which no corresponding software handler is registered, leading to a kernel crash. This vulnerability results in a Denial of Service (DoS), making the affected system unavailable.

CWE

CWE-431

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org