Linux ARM SCMI BASE_ERROR_EVENT payload size validation flaw
CVE-2026-98892 Published on October 23, 2026
firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size
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.
Products Associated with CVE-2026-98892
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Affected Versions
Linux:- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below 4a754704698017ced0b657c92b468035faad00ed is affected.
- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below 28d65a0a46435d48b96b6943c518095dff1602a1 is affected.
- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below 890a9c3bf9dae90dcabded9d8e10c708a13779f7 is affected.
- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below c0742f23ec13fb6f5e0cd884323467a6c127d3c2 is affected.
- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216 is affected.
- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below cb77a50d1114c0c9e084176301a8e094d383edfa is affected.
- Version 585dfab3fb80e67b3a54790b3d5ef2991feb3950 and below 56e7e64cdd0e7209a58c8ec66028d63387402919 is affected.
- Version 5.9 is affected.
- Before 5.9 is unaffected.
- Version 5.10.271, <= 5.10.* is unaffected.
- Version 5.15.222, <= 5.15.* is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.111, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2, <= * is unaffected.