What’s Vulnerable › Vulnerabilities

CVE-2023-52783: net: wangxun: fix kernel panic due to null pointer

• 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: 2024-05-21 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: net: wangxun: fix kernel panic due to null pointer When the device uses a custom subsystem vendor ID, the function wx_sw_init() returns before the memory of 'wx->mac_table' is allocated. The null pointer will causes the kernel panic.

Affected products

• Linux kernel: from 6.3 before 6.6.4 — fixed in 6.6.4

How to fix

Upgrade to a fixed version: Linux kernel 6.6.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/61a55071653974dab172d4c5d699bb365cfd13c9
• https://git.kernel.org/stable/c/8ba2c459668cfe2aaacc5ebcd35b4b9ef8643013
• https://git.kernel.org/stable/c/61a55071653974dab172d4c5d699bb365cfd13c9
• https://git.kernel.org/stable/c/8ba2c459668cfe2aaacc5ebcd35b4b9ef8643013

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