CVE-2026-64511

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9b311b7313d6c104dd4a2d43ab54536dce07f960 < a44343fe230aa48c74ef09830f3c5c90848b257eaffected
LinuxLinux9b311b7313d6c104dd4a2d43ab54536dce07f960 < 3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6affected
LinuxLinux9b311b7313d6c104dd4a2d43ab54536dce07f960 < 452945662fd8e9862a2d2043239c7ee1815d1ac4affected
LinuxLinux9b311b7313d6c104dd4a2d43ab54536dce07f960 < 873576e585da5d0fc5debbab74eed565c0acea99affected
LinuxLinux9b311b7313d6c104dd4a2d43ab54536dce07f960 < 027e128abb82788189d6d45b68e3e8e7329b67beaffected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.96 <= 6.12.*unaffected
LinuxLinux6.18.39 <= 6.18.*unaffected
LinuxLinux7.1.4 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References