CVE-2026-92490

Summary

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

VendorProductVersion RangeStatus
LinuxLinuxd3cd7c525fd2ecce3a6c963f314969a54783d211 < 524e57035af2d32498af9dd8fa6fdc92fcc8f80aaffected
LinuxLinuxd3cd7c525fd2ecce3a6c963f314969a54783d211 < 06e65e07a1bcb39a1ebc8bb89a981f8e07900497affected
LinuxLinuxd3cd7c525fd2ecce3a6c963f314969a54783d211 < a76b20b1f03099204db29b90e1024fe1c2b2cdd7affected
LinuxLinuxd3cd7c525fd2ecce3a6c963f314969a54783d211 < 4520d4a1db37198756ad23568e36cdf091b6ffffaffected
LinuxLinuxd3cd7c525fd2ecce3a6c963f314969a54783d211 < 9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86affected
LinuxLinux6.3affected
LinuxLinux0 < 6.3unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References