CVE-2026-92490

firmware: arm_scmi: Unrequest devices if driver registration fails

N/A
Published: September 17, 2026 at 04:10 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.3d3cd7c525fd2ecce3a6c963f314969a54783d211
Vendor states this is fixed in 06e65e07a1bcb39a1ebc8bb89a981f8e07900497 (fixed)
Vendor states this is fixed in 4520d4a1db37198756ad23568e36cdf091b6ffff (fixed)
Vendor states this is fixed in 524e57035af2d32498af9dd8fa6fdc92fcc8f80a (fixed)
Vendor states this is fixed in 9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86 (fixed)
Vendor states this is fixed in a76b20b1f03099204db29b90e1024fe1c2b2cdd7 (fixed)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.3 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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