What’s Vulnerable › Vulnerabilities

CVE-2024-35945: net: phy: phy_device: Prevent nullptr exceptions on ISR

• 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: 2024-05-19 · updated 2026-10-30
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: net: phy: phy_device: Prevent nullptr exceptions on ISR If phydev->irq is set unconditionally, check for valid interrupt handler or fall back to polling mode to prevent nullptr exceptions in interrupt service routine.

Affected products

• Linux kernel: before 6.6.27; from 6.7 before 6.8.6 — fixed in 6.6.27, 6.8.6
• Linux: 5.3 — fixed in 6.9

How to fix

Upgrade to a fixed version: Linux kernel 6.6.27, 6.8.6; Linux 6.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3419ee39e3d3162ab2ec9942bb537613ed5b6311
• https://git.kernel.org/stable/c/61c81872815f46006982bb80460c0c80a949b35b
• https://git.kernel.org/stable/c/7a71f61ebf95cedd3f245db6da397822971d8db5
• https://git.kernel.org/stable/c/a4f082d6a90ecb6c980579ae170b27f48d5601f5
• https://git.kernel.org/stable/c/3419ee39e3d3162ab2ec9942bb537613ed5b6311
• https://git.kernel.org/stable/c/61c81872815f46006982bb80460c0c80a949b35b
• https://git.kernel.org/stable/c/7a71f61ebf95cedd3f245db6da397822971d8db5

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