---
id: CVE-2024-35945
title: 'net: phy: phy_device: Prevent nullptr exceptions on ISR'
summary: |-
  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 preven…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa <
    a4f082d6a90ecb6c980579ae170b27f48d5601f5
  - >-
    Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa <
    7a71f61ebf95cedd3f245db6da397822971d8db5
  - >-
    Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa <
    3419ee39e3d3162ab2ec9942bb537613ed5b6311
  - >-
    Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa <
    61c81872815f46006982bb80460c0c80a949b35b
  - Linux 5.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-05-20T17:11:47.084130Z'
published: '2024-05-19'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T12:18:22.917Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-35945'
references:
  - url: 'https://git.kernel.org/stable/c/a4f082d6a90ecb6c980579ae170b27f48d5601f5'
  - url: 'https://git.kernel.org/stable/c/7a71f61ebf95cedd3f245db6da397822971d8db5'
  - url: 'https://git.kernel.org/stable/c/3419ee39e3d3162ab2ec9942bb537613ed5b6311'
  - url: 'https://git.kernel.org/stable/c/61c81872815f46006982bb80460c0c80a949b35b'
tags:
  - cve.org
epss: 0.00213
epssPercentile: 0.11687
ingestedAt: '2026-11-03T12:44:28.814Z'
---

## Overview

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

- `Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa < a4f082d6a90ecb6c980579ae170b27f48d5601f5`
- `Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa < 7a71f61ebf95cedd3f245db6da397822971d8db5`
- `Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa < 3419ee39e3d3162ab2ec9942bb537613ed5b6311`
- `Linux >= 49644e68f472c6480e015253fa4d7448c6cfa2aa < 61c81872815f46006982bb80460c0c80a949b35b`
- `Linux 5.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.