CVE-2026-92490

Unknown

Last modified

CVE-2026-92490 is a vulnerability of currently unknown severity. In 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.

Description

In 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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= d3cd7c525fd2ecce3a6c963f314969a54783d211, < 524e57035af2d32498af9dd8fa6fdc92fcc8f80a; >= d3cd7c525fd2ecce3a6c963f314969a54783d211, < 06e65e07a1bcb39a1ebc8bb89a981f8e07900497; >= d3cd7c525fd2ecce3a6c963f314969a54783d211, < a76b20b1f03099204db29b90e1024fe1c2b2cdd7; >= d3cd7c525fd2ecce3a6c963f314969a54783d211, < 4520d4a1db37198756ad23568e36cdf091b6ffff; >= d3cd7c525fd2ecce3a6c963f314969a54783d211, < 9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86
LinuxLinux6.3

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-92490?
In 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.
How severe is CVE-2026-92490?
Severity scoring for CVE-2026-92490 is pending analysis.
How do I fix CVE-2026-92490?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST