What’s Vulnerable › Vulnerabilities

CVE-2025-38173: crypto: marvell/cesa - Handle zero-length skcipher requests

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-03 · updated 2026-07-30

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: marvell/cesa - Handle zero-length skcipher requests Do not access random memory for zero-length skcipher requests. Just return 0.

Affected products

• Debian Linux: 11.0
• Linux kernel: from 4.2 before 5.4.295; from 5.5 before 5.10.239; from 5.11 before 5.15.186; from 5.16 before 6.1.142; from 6.2 before 6.6.94; from 6.7 before 6.12.34 — fixed in 5.10.239, 5.15.186, 5.4.295, 6.1.142, 6.12.34, 6.15.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.239, 5.15.186, 5.4.295, 6.1.142. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/32d3e8049a8b60f18c5c39f5931bfb1130ac11c9
• https://git.kernel.org/stable/c/5e9666ac8b94c978690f937d59170c5237bd2c45
• https://git.kernel.org/stable/c/7894694b5d5b2ecfd7fb081d6f60b9e169ab4d13
• https://git.kernel.org/stable/c/78ea1ff6cb413a03ff6f7af4e28e24b4461a0965
• https://git.kernel.org/stable/c/8a4e047c6cc07676f637608a9dd675349b5de0a7
• https://git.kernel.org/stable/c/c064ae2881d839709bd72d484d5f2af157f46024
• https://git.kernel.org/stable/c/c9610dda42bd382a96f97e68825cb5f66cd9e1dc
• https://git.kernel.org/stable/c/e1cc69da619588b1488689fe3535a0ba75a2b0e7
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

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