CVE-2024-50295

Local denial of service via wrong DMA device

Published Nov 19, 2024 · Updated May 23, 2026

Improper DMA mapping in the ARC Ethernet driver in affected Linux kernel versions allows local users to interrupt system availability. The transmit path passes ndev->dev, which lacks the platform device's DMA mask, to dma_map_single and dma_unmap_single instead of using ndev->dev.parent. A local low-privileged user must reach the ARC Ethernet transmit path on a system using that driver; the documented result is a kernel DMA-mapping warning with availability impact.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper DMA mapping in the ARC Ethernet driver in affected Linux kernel versions allows local users to interrupt system availability. The transmit path passes ndev->dev, which lacks the platform device's DMA mask, to dma_map_single and dma_unmap_single instead of using ndev->dev.parent. A local low-privileged user must reach the ARC Ethernet transmit path on a system using that driver; the documented result is a kernel DMA-mapping warning with availability impact.

The record

CVE
CVE-2024-50295
Published
Nov 19, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4e57482e8440fac7137832629109730ea4b267aa
  2. Affected versionversion=5.10
  3. Affected versionversion=5.9.2 <5.10
  4. Affected versionversion=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <30606ea3fae57f8e9f2467415389e988e3c53a18
  5. Affected versionversion=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <3898393b5483c8aa2efd7cb13aa70e22078ab022
  6. Affected versionversion=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <71803c1dfa29e0d13b99e48fda11107cc8caebc7
  7. Affected versionversion=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <8ed7a4a39c3f7cd9655af867e878fda512ae67ad
  8. Affected versionversion=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <cd4706d9ac0d8d3bab8dc9e50cc1187f6cfa43dd
  9. Affected versionversion=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <fd4e062fbc07156f8e9d73212d347c744572677e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4e57482e8440fac7137832629109730ea4b267aa; version=5.10; version=5.9.2 <5.10; version=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <30606ea3fae57f8e9f2467415389e988e3c53a18; version=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <3898393b5483c8aa2efd7cb13aa70e22078ab022; version=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <71803c1dfa29e0d13b99e48fda11107cc8caebc7; version=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <8ed7a4a39c3f7cd9655af867e878fda512ae67ad; version=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <cd4706d9ac0d8d3bab8dc9e50cc1187f6cfa43dd; version=f959dcd6ddfd29235030e8026471ac1b022ad2b0 <fd4e062fbc07156f8e9d73212d347c744572677e

Published CVSS scores

5.5OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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