CVE-2026-43008 gpio: qixis-fpga: Fix error handling for devm_regmap_init_mmio()

What is CVE-2026-43008?

CVE-2026-43008 is a medium-severity vulnerability in Linux kernel, published on 1 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

gpio: qixis-fpga: Fix error handling for devm_regmap_init_mmio()

devm_regmap_init_mmio() returns an ERR_PTR() on failure, not NULL. The original code checked for NULL which would never trigger on error, potentially leading to an invalid pointer dereference. Use IS_ERR() and PTR_ERR() to properly handle the error case.

Weakness: CWE-476

Which versions are affected by CVE-2026-43008?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43008?

Apply the vendor's patch.

Is CVE-2026-43008 being exploited?

There is no known exploitation of CVE-2026-43008 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-43008, GHSA-q8x7-49p9-r9fc, UBUNTU-CVE-2026-43008.