firmware: arm_scmi: Unrequest devices if driver registration fails

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-92490
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:51 UTC
Updated2026-09-17 17:17:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unrequest devices if driver registration fails scmi_driver_register() requests protocol devices before registering the driver. If driver_register() fails, those requests remain in the global IDR and retain pointers to the module's ID table. Once the failed module load releases that storage, later request matching or SCMI device creation can dereference the stale pointers. Unrequest the complete protocol table before returning the registration failure. At this point table registration succeeded, so every entry is owned by the current registration attempt.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.065060000 (date 2026-09-18)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d3cd7c525fd2ecce3a6c963f314969a54783d211 524e57035af2d32498af9dd8fa6fdc92fcc8f80a git Not specified
CNA Linux Linux affected d3cd7c525fd2ecce3a6c963f314969a54783d211 06e65e07a1bcb39a1ebc8bb89a981f8e07900497 git Not specified
CNA Linux Linux affected d3cd7c525fd2ecce3a6c963f314969a54783d211 a76b20b1f03099204db29b90e1024fe1c2b2cdd7 git Not specified
CNA Linux Linux affected d3cd7c525fd2ecce3a6c963f314969a54783d211 4520d4a1db37198756ad23568e36cdf091b6ffff git Not specified
CNA Linux Linux affected d3cd7c525fd2ecce3a6c963f314969a54783d211 9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86 git Not specified
CNA Linux Linux affected 6.3 Not specified
CNA Linux Linux unaffected 6.3 semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/524e57035af2d32498af9dd8fa6fdc92fcc8f80a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4520d4a1db37198756ad23568e36cdf091b6ffff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/06e65e07a1bcb39a1ebc8bb89a981f8e07900497 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a76b20b1f03099204db29b90e1024fe1c2b2cdd7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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