ACPI: NFIT: core: Fix possible NULL pointer dereference

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64511
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:37 UTC
Updated2026-07-25 10:17:37 UTC
DescriptionIn 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().

Risk And Classification

EPSS: 0.002090000 probability, percentile 0.111740000 (date 2026-07-25)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 a44343fe230aa48c74ef09830f3c5c90848b257e git Not specified
CNA Linux Linux affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6 git Not specified
CNA Linux Linux affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 452945662fd8e9862a2d2043239c7ee1815d1ac4 git Not specified
CNA Linux Linux affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 873576e585da5d0fc5debbab74eed565c0acea99 git Not specified
CNA Linux Linux affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 027e128abb82788189d6d45b68e3e8e7329b67be git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.96 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a44343fe230aa48c74ef09830f3c5c90848b257e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/452945662fd8e9862a2d2043239c7ee1815d1ac4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/027e128abb82788189d6d45b68e3e8e7329b67be 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/873576e585da5d0fc5debbab74eed565c0acea99 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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