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VulnerabilityPublished Updated

CVE-2026-43138: Linux kernel · reset: gpio: suppress bind attributes in sysfs

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 11 Nov 2026, 22:48 UTC

Severity
High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 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 has been implemented in the Linux kernel to suppress the sysfs bind attributes for the reset GPIO device, preventing user-space from unbinding it and triggering the use-after-free. Users should update to the fixed kernel version once available. No additional mitigation is indicated.

Description

A vulnerability in the Linux kernel's reset GPIO subsystem allowed user-space to unbind a special device dynamically created and intended to remain in memory permanently. This could lead to a use-after-free condition causing a kernel crash or instability. The issue was addressed by suppressing the sysfs bind attributes to prevent unbinding by user-space.

References

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