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().

• https://git.kernel.org/stable/c/027e128abb82788189d6d45b68e3e8e7329b67be
• https://git.kernel.org/stable/c/3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6
• https://git.kernel.org/stable/c/452945662fd8e9862a2d2043239c7ee1815d1ac4
• https://git.kernel.org/stable/c/873576e585da5d0fc5debbab74eed565c0acea99
• https://git.kernel.org/stable/c/a44343fe230aa48c74ef09830f3c5c90848b257e

Published

Jul 25, 2026

Last Modified

Jul 25, 2026

Status

Received

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