USN-8853-1: OpenSBI vulnerability
Publication date
30 September 2026
Overview
OpenSBI could be made to crash if it received specially crafted input.
Releases
Packages
- opensbi - RISC-V Open Source Supervisor Binary Interface
Details
It was discovered that OpenSBI did not properly validate the counter index
mask in SBI PMU extension requests. An attacker could use this issue to
cause a denial of service.
It was discovered that OpenSBI did not properly validate the counter index
mask in SBI PMU extension requests. An attacker could use this issue to
cause a denial of service.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 22.04 LTS jammy | opensbi – 1.3-1ubuntu0.22.04.3 | ||
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