CVE-2025-38375: debian linux Out-of-bounds Read — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: virtio-net: ensure the received length does not exceed allocated size In xdp_linearize_page, when reading the following buffers from the ring, we forget to check the received length with the true allocate size. This can lead to an out-of-bound read. This commit adds that missing check.

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CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.14 — 5.4.297
linux	linux_kernel	5.5 — 5.10.241
linux	linux_kernel	5.11 — 5.15.189
linux	linux_kernel	5.16 — 6.1.144
linux	linux_kernel	6.2 — 6.6.97
linux	linux_kernel	6.7 — 6.12.37
linux	linux_kernel	6.13 — 6.15.6
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/11f2d0e8be2b5e784ac45fa3da226492c3e506d8 https://git.kernel.org/stable/c/315dbdd7cdf6aa533829774caaf4d25f1fd20e73 https://git.kernel.org/stable/c/6aca3dad2145e864dfe4d1060f45eb1bac75dd58 https://git.kernel.org/stable/c/773e95c268b5d859f51f7547559734fd2a57660c https://git.kernel.org/stable/c/80b971be4c37a4d23a7f1abc5ff33dc7733d649b https://git.kernel.org/stable/c/982beb7582c193544eb9c6083937ec5ac1c9d651 https://git.kernel.org/stable/c/bc68bc3563344ccdc57d1961457cdeecab8f81ef https://git.kernel.org/stable/c/ddc8649d363141fb3371dd81a73e1cb4ef8ed1e1

Other References

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38375? +

In the Linux kernel, the following vulnerability has been resolved: virtio-net: ensure the received length does not exceed allocated size In xdp_linearize_page, when reading the following buffers from the ring, we forget to check the received length with the true allocate size. This can lead to an out-of-bound read. This commit adds that missing check. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38375? +

CVE-2025-38375 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-38375? +

CVE-2025-38375 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-38375? +

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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