CVE-2026-43138: Linux kernel · reset: gpio: suppress bind attributes in sysfs
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 11 Nov 2026, 22:48 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
- git.kernel.org/stable/c/09d6efc6abd42809956d598906c222ccd1c8ae92 (opens in a new tab)
- git.kernel.org/stable/c/76801c3dfca0ac6339a23e9615b5f23e25b8644c (opens in a new tab)
- git.kernel.org/stable/c/1d7d869f074f98c34fe23f6a56e5f3acc1f95a2b (opens in a new tab)
- git.kernel.org/stable/c/16de4c6a8fe9ff497ca1aba33ef0dbee09f11952 (opens in a new tab)