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VulnerabilityPublished Updated

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

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 12 Nov 2026, 00:50 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

AI-suggested

A fix is available in the Linux kernel to properly handle error returns from devm_regmap_init_mmio() by using IS_ERR() and PTR_ERR() macros. Users should apply the official Linux kernel update that includes this correction. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel's gpio qixis-fpga driver was fixed by correcting error handling for the devm_regmap_init_mmio() function. The function returns an ERR_PTR() on failure, but the original code incorrectly checked for NULL, which never occurs on error. This could lead to an invalid pointer dereference.

References

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