What’s Vulnerable › Vulnerabilities

CVE-2026-98892: firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-23 · updated 2026-10-26

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size BASE_ERROR_EVENT carries a variable number of message reports, with the count encoded in error_status. The notification parser used that count without checking whether the received payload contained all reported entries. Reject truncated payloads before copying the report array.

Affected products

• Linux kernel: before 5.10.271; before 5.15.222; before 6.1.189; before 6.6.158; before 6.12.111; before 6.18.53 — fixed in 5.10.271, 5.15.222, 6.1.189, 6.12.111, 6.18.53, 6.6.158

How to fix

Upgrade to a fixed version: Linux kernel 5.10.271, 5.15.222, 6.1.189, 6.12.111. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/28d65a0a46435d48b96b6943c518095dff1602a1
• https://git.kernel.org/stable/c/4a754704698017ced0b657c92b468035faad00ed
• https://git.kernel.org/stable/c/56e7e64cdd0e7209a58c8ec66028d63387402919
• https://git.kernel.org/stable/c/890a9c3bf9dae90dcabded9d8e10c708a13779f7
• https://git.kernel.org/stable/c/bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216
• https://git.kernel.org/stable/c/c0742f23ec13fb6f5e0cd884323467a6c127d3c2
• https://git.kernel.org/stable/c/cb77a50d1114c0c9e084176301a8e094d383edfa

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