CVE-2026-64511: Linux kernel · ACPI: NFIT: core: Fix possible NULL pointer dereference
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 3 Nov 2026, 18:43 UTC
Rated Medium 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 25 Jul 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 3 Nov 2026.
What to do
AI-suggested
A fix has been implemented by adding a NULL pointer check in the acpi_nfit_uc_error_notify() function. Users should update their Linux kernel to a version that includes this fix once it is released. Since this is a kernel-level issue, applying the official patch or updating the kernel is the recommended mitigation.
Description
A vulnerability in the Linux kernel's ACPI NFIT core could lead to a NULL pointer dereference. This occurs because the ACPI notify handler is installed before confirming the presence of the NFIT table, potentially causing a NULL pointer dereference if a specific notification is triggered without the NFIT table being present. The issue is addressed by adding a NULL check before dereferencing the pointer.
References
- git.kernel.org/stable/c/a44343fe230aa48c74ef09830f3c5c90848b257e (opens in a new tab)
- git.kernel.org/stable/c/3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6 (opens in a new tab)
- git.kernel.org/stable/c/452945662fd8e9862a2d2043239c7ee1815d1ac4 (opens in a new tab)
- git.kernel.org/stable/c/873576e585da5d0fc5debbab74eed565c0acea99 (opens in a new tab)
- git.kernel.org/stable/c/027e128abb82788189d6d45b68e3e8e7329b67be (opens in a new tab)