CVE-2026-64511
In the Linux kernel, the following vulnerability has been resolved:
ACPI: NFIT: core: Fix possible NULL pointer dereference
After commit 9b311b7313d6 ("ACPI: NFIT: Install Notify() handler before
getting NFIT table"), acpi_nfit_probe() installs an ACPI notify handler
for the NFIT device before checking the presence of the NFIT table. If
that table is not there, 0 is returned without allocating the acpi_desc
object and setting the driver data pointer of the NFIT device. If the
platform firmware triggers an NFIT_NOTIFY_UC_MEMORY_ERROR notification
on the NFIT device at that point, acpi_nfit_uc_error_notify() will
dereference a NULL pointer.
Prevent that from occurring by adding an acpi_desc check against NULL
to acpi_nfit_uc_error_notify().
CSIRTS triage
- What
- There is a possible NULL pointer dereference in the ACPI NFIT core.
- Who is affected
- Deployments using the affected ACPI NFIT core.
- Urgency
- Remediation is necessary to prevent potential system instability.
- Action
- Apply the relevant patches once available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Advisory coverage (2)
- unknownCVE-2026-64511: In the Linux kernel, the following vulnerability has been resolved: ACPI: NFIT: core: Fix poss…nvd · 2026-07-25
- mediumCVE-2026-64511: ACPI: NFIT: core: Fix possible NULL pointer dereferencemsrc · 2026-07-14
External references
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