CVE-2024-50208: linux kernel Out-of-bounds Read — Fix

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.7 — 5.10.229
linux	linux_kernel	5.11 — 5.15.170
linux	linux_kernel	5.16 — 6.1.115
linux	linux_kernel	6.2 — 6.6.59
linux	linux_kernel	6.7 — 6.11.6
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

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

Other References

https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Frequently Asked Questions

What is CVE-2024-50208? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50208? +

CVE-2024-50208 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-50208? +

CVE-2024-50208 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-50208? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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