CVE-2024-35971

System hang via recursive KS8851 spinlock acquisition

Published May 20, 2024 · Updated Aug 5, 2026

Deadlock in the Linux kernel's KS8851 parallel Ethernet driver from 5.8 through 6.8 allows local users to hang the system. The ks8851_irq() path holds ksp->lock while netif_rx() enables pending softirqs, allowing ks8851_start_xmit_par() to acquire the same spinlock again. The affected interface must receive traffic while a transmit softirq is pending; the resulting self-deadlock stops system service.

CVSS severity5.5
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Deadlock in the Linux kernel's KS8851 parallel Ethernet driver from 5.8 through 6.8 allows local users to hang the system. The ks8851_irq() path holds ksp->lock while netif_rx() enables pending softirqs, allowing ks8851_start_xmit_par() to acquire the same spinlock again. The affected interface must receive traffic while a transmit softirq is pending; the resulting self-deadlock stops system service.

The record

CVE
CVE-2024-35971
Published
May 20, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.8
  2. Affected versionversion=797047f875b5463719cc70ba213eb691d453c946 <492337a4fbd1421b42df684ee9b34be2a2722540
  3. Affected versionversion=797047f875b5463719cc70ba213eb691d453c946 <49d5d70538b6b8f2a3f8f1ac30c1f921d4a0929b
  4. Affected versionversion=797047f875b5463719cc70ba213eb691d453c946 <be0384bf599cf1eb8d337517feeb732d71f75a6f
  5. Affected versionversion=797047f875b5463719cc70ba213eb691d453c946 <cba376eb036c2c20077b41d47b317d8218fe754f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.8; version=797047f875b5463719cc70ba213eb691d453c946 <492337a4fbd1421b42df684ee9b34be2a2722540; version=797047f875b5463719cc70ba213eb691d453c946 <49d5d70538b6b8f2a3f8f1ac30c1f921d4a0929b; version=797047f875b5463719cc70ba213eb691d453c946 <be0384bf599cf1eb8d337517feeb732d71f75a6f; version=797047f875b5463719cc70ba213eb691d453c946 <cba376eb036c2c20077b41d47b317d8218fe754f

Published CVSS scores

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

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-667Improper Locking
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo