What’s Vulnerable › Vulnerabilities

CVE-2022-48966: net: mvneta: Prevent out of bounds read in mvneta_config_rss()

• Severity: high (CVSS 7.1 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: 2024-10-21 · updated 2026-06-17
• Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: net: mvneta: Prevent out of bounds read in mvneta_config_rss() The pp->indir[0] value comes from the user. It is passed to: if (cpu_online(pp->rxq_def)) inside the mvneta_percpu_elect() function. It needs bounds checkeding to ensure that it is not beyond the end of the cpu bitmap.

Affected products

• Linux kernel: from 4.5 before 4.9.336; from 4.10 before 4.14.302; from 4.15 before 4.19.269; from 4.20 before 5.4.227; from 5.5 before 5.10.159; from 5.11 before 5.15.83 — fixed in 4.14.302, 4.19.269, 4.9.336, 5.10.159, 5.15.83, 5.4.227

How to fix

Upgrade to a fixed version: Linux kernel 4.14.302, 4.19.269, 4.9.336, 5.10.159. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/146ebee8fcdb349d7ec0e49915e6cdafb92544ae
• https://git.kernel.org/stable/c/3ceffb8f410b93553fb16fe7e84aa0d35b3ba79b
• https://git.kernel.org/stable/c/47a1a2f6cd5ec3a4f8a2d9bfa1e0605347cdb92c
• https://git.kernel.org/stable/c/5a142486a0db6b0b85031f22d69acd0cdcf8f72b
• https://git.kernel.org/stable/c/6ca0a506dddc3e1d636935eef339576b263bf3d8
• https://git.kernel.org/stable/c/a6b30598fec84f8809f5417cde73071ca43e8471
• https://git.kernel.org/stable/c/e8b4fc13900b8e8be48debffd0dfd391772501f7
• https://git.kernel.org/stable/c/eec1fc21edc2bb99c9e66cf66f0b5d4d643fbb50

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