Description
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 products
linux: linux kernel
References5
- git.kernel.org/stable/c/027e128abb82788189d6d45b68e3e8e7329b67be Patch
- git.kernel.org/stable/c/3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6 Patch
- git.kernel.org/stable/c/452945662fd8e9862a2d2043239c7ee1815d1ac4 Patch
- git.kernel.org/stable/c/873576e585da5d0fc5debbab74eed565c0acea99 Patch
- git.kernel.org/stable/c/a44343fe230aa48c74ef09830f3c5c90848b257e Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 1 · as of 13 November 2026
- CWE
- CWE-476
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