CVE-2024-24864

Kernel panic via unlocked DVB frontend dereference

Published Feb 5, 2024 · Updated Aug 1, 2024

Race condition in Linux Kernel before 6.8-rc2 allows local users to crash the kernel through concurrent DVB frontend operations. The dvbdmx_write() function reads demux->frontend and dereferences its source field without holding dvb_demux.mutex, so a concurrent disconnect can set the pointer to NULL after the check. Exploitation requires local low-privileged access, user interaction, and overlapping DVB write and frontend-disconnect activity; the bounded consequence is a kernel panic and service interruption.

CVSS severity5.3
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Linux Kernel before 6.8-rc2 allows local users to crash the kernel through concurrent DVB frontend operations. The dvbdmx_write() function reads demux->frontend and dereferences its source field without holding dvb_demux.mutex, so a concurrent disconnect can set the pointer to NULL after the check. Exploitation requires local low-privileged access, user interaction, and overlapping DVB write and frontend-disconnect activity; the bounded consequence is a kernel panic and service interruption.

The record

CVE
CVE-2024-24864
Published
Feb 5, 2024
Updated
Aug 1, 2024
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-362, CAPEC-26, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=v2.6.12-rc2 <v6.8-rc2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=v2.6.12-rc2 <v6.8-rc2

Published CVSS scores

5.3AnolisCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC-26Leveraging Race Conditions
T1499.004Application or System Exploitation

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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