What’s Vulnerable › Vulnerabilities

CVE-2022-49019: net: ethernet: nixge: fix NULL dereference

• 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: 2024-10-21 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: nixge: fix NULL dereference In function nixge_hw_dma_bd_release() dereference of NULL pointer priv->rx_bd_v is possible for the case of its allocation failure in nixge_hw_dma_bd_init(). Move for() loop with priv->rx_bd_v dereference under the check for its validity. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

• Linux kernel: from 4.17 before 5.4.226; from 5.5 before 5.10.158; from 5.11 before 5.15.82; from 5.16 before 6.0.12; 6.1-rc1, 6.1-rc2, 6.1-rc3, 6.1-rc4, 6.1-rc5, 6.1-rc6 (+1) — fixed in 5.10.158, 5.15.82, 5.4.226, 6.0.12

How to fix

Upgrade to a fixed version: Linux kernel 5.10.158, 5.15.82, 5.4.226, 6.0.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/45752af0247589e6d3dede577415bfe117b4392c
• https://git.kernel.org/stable/c/80e82f7b440b65cf131dce10f487dc73a7046e6b
• https://git.kernel.org/stable/c/910c0264b64ef2dad8887714a7c56c93e39a0ed3
• https://git.kernel.org/stable/c/9256db4e45e8b497b0e993cc3ed4ad08eb2389b6
• https://git.kernel.org/stable/c/9c584d6d9cfb935dce8fc81a4c26debac0a3049b

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