tpm_crb: Check ACPI_COMPANION() against NULL during probe

Summary

CVECVE-2026-72432
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:17 UTC
Updated2026-08-17 06:19:10 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: tpm_crb: Check ACPI_COMPANION() against NULL during probe Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. Accordingly, add a requisite ACPI_COMPANION() check against NULL to the tpm_crb driver.

Risk And Classification

EPSS: 0.001980000 probability, percentile 0.098960000 (date 2026-08-17)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 48fe2cddc85c7849463bd01ae8b8c6b575ff508b c041d2be785feb9b5e36331921eadaefbe65349d git Not specified
CNA Linux Linux affected 48fe2cddc85c7849463bd01ae8b8c6b575ff508b ddd33806b8911fa2ef849e8bbbab1e3fcb26adc0 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c041d2be785feb9b5e36331921eadaefbe65349d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ddd33806b8911fa2ef849e8bbbab1e3fcb26adc0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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