CVE-2024-49984

Kernel memory corruption via oversized perfmon count

Published Oct 21, 2024 · Updated Aug 5, 2026

Out-of-bounds write in the V3D DRM driver in Linux allows local users to corrupt kernel memory through a CPU-job submission ioctl. The copy and reset performance-query handlers accept nperfmons values above three and copy user-supplied IDs past fixed internal storage. An open V3D render-node descriptor is sufficient; no DRM authentication or administrative capability is required, and corruption can compromise kernel confidentiality, integrity, and availability.

CVSS severity7.8
High
EPSS probability0.24%
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 write in the V3D DRM driver in Linux allows local users to corrupt kernel memory through a CPU-job submission ioctl. The copy and reset performance-query handlers accept nperfmons values above three and copy user-supplied IDs past fixed internal storage. An open V3D render-node descriptor is sufficient; no DRM authentication or administrative capability is required, and corruption can compromise kernel confidentiality, integrity, and availability.

The record

CVE
CVE-2024-49984
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 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=6.8
  2. Affected versionversion=bae7cb5d68001a8d4ceec5964dda74bb9aab7220 <3e50d72abe50204c7b19784a66e86da29dde32c2
  3. Affected versionversion=bae7cb5d68001a8d4ceec5964dda74bb9aab7220 <d9536f16be3970c170571efa707c13cd089c774e
  4. Affected versionversion=bae7cb5d68001a8d4ceec5964dda74bb9aab7220 <f32b5128d2c440368b5bf3a7a356823e235caabb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=bae7cb5d68001a8d4ceec5964dda74bb9aab7220 <3e50d72abe50204c7b19784a66e86da29dde32c2; version=bae7cb5d68001a8d4ceec5964dda74bb9aab7220 <d9536f16be3970c170571efa707c13cd089c774e; version=bae7cb5d68001a8d4ceec5964dda74bb9aab7220 <f32b5128d2c440368b5bf3a7a356823e235caabb

Published CVSS scores

7.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

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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