CVE-2024-46730

Kernel crash via negative timing-generator index

Published Sep 18, 2024 · Updated Aug 5, 2026

Out-of-bounds access in Linux kernel 4.15 through 6.10.8 allows local users to crash the system through AMD display handling. In resource_map_pool_resources(), a zero timing_generator_count makes tg_inst equal -1, and the code indexes timing_generators and opps with that negative value. Reachability requires local low-privileged access and an AMD display configuration that reaches the zero-count path; the bounded impact is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in Linux kernel 4.15 through 6.10.8 allows local users to crash the system through AMD display handling. In resource_map_pool_resources(), a zero timing_generator_count makes tg_inst equal -1, and the code indexes timing_generators and opps with that negative value. Reachability requires local low-privileged access and an AMD display configuration that reaches the zero-count path; the bounded impact is a kernel crash.

The record

CVE
CVE-2024-46730
Published
Sep 18, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-191, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 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

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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=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <687fe329f18ab0ab0496b20ed2cb003d4879d931
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a64284b9e1999ad5580debced4bc6d6adb28aad4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <687fe329f18ab0ab0496b20ed2cb003d4879d931; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a64284b9e1999ad5580debced4bc6d6adb28aad4

Published CVSS scores

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-191Integer Underflow (Wrap or Wraparound)
T1499.004Endpoint Denial of Service: Application or System Exploitation

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

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Your stack

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