CVE-2026-98893
Published Oct 23, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Validate SENSOR_UPDATE payload size SENSOR_UPDATE carries one or more sensor readings after the fixed notification header. The parser derives the expected reading count from the sensor description, but it did not verify that the received payload contains those entries before parsing them. Reject truncated update notifications before reading the variable array.
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References
Other References
https://git.kernel.org/stable/c/1bbe431fc59704d012660647516f6f94ddd82564
https://git.kernel.org/stable/c/32bc5496b48174dbca1f187f710955ee4d9527a1
https://git.kernel.org/stable/c/767789a58ae0d65ec3028e5b5b4da82210355d00
https://git.kernel.org/stable/c/87a72e75f7560ea45cd28870194eaa153dd19e75
https://git.kernel.org/stable/c/c148ff2f5a168e0bc41d801efca6ee35a376cfcb
https://git.kernel.org/stable/c/e543d60f966a5f5c92298720c2fd1810f85a6be3
Frequently Asked Questions
What is CVE-2026-98893? +
In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_scmi: Validate SENSOR_UPDATE payload size
SENSOR_UPDATE carries one or more sensor readings after the fixed
notification header. The parser derives the expected reading count
from the sensor description, but it did not verify that the received
payload contains those entries before parsing them.
Reject truncated update notifications before reading the variable
array.
How do I check if I'm vulnerable to CVE-2026-98893? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.