CVE-2024-50221

Local kernel memory corruption via oversized memset

Published Nov 9, 2024 · Updated Aug 5, 2026

Out-of-bounds write in the Linux kernel AMD Vangogh power-management code allows local users to corrupt kernel memory through sysfs. The Vangogh table initializer allocates 152 bytes, but smu_cmn_init_soft_gpu_metrics clears 168 bytes and writes beyond the heap object. A local user can trigger the operation by reading the world-readable gpu_metrics attribute on a system with a Vangogh APU, causing disclosure, slab corruption, or a kernel panic.

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 Linux kernel AMD Vangogh power-management code allows local users to corrupt kernel memory through sysfs. The Vangogh table initializer allocates 152 bytes, but smu_cmn_init_soft_gpu_metrics clears 168 bytes and writes beyond the heap object. A local user can trigger the operation by reading the world-readable gpu_metrics attribute on a system with a Vangogh APU, causing disclosure, slab corruption, or a kernel panic.

The record

CVE
CVE-2024-50221
Published
Nov 9, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 9, 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=41cec40bc9baba83d36a0718ea94bfe63189274a <4aa923a6e6406b43566ef6ac35a3d9a3197fa3e8
  2. Affected versionversion=41cec40bc9baba83d36a0718ea94bfe63189274a <f111de0f010308949254ee1cc45df8e6b8e1d7d4
  3. Affected versionversion=41cec40bc9baba83d36a0718ea94bfe63189274a <f8fd9f0d57af4f8f48b383ec28287af85b47cb9f
  4. Affected versionversion=6.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=41cec40bc9baba83d36a0718ea94bfe63189274a <4aa923a6e6406b43566ef6ac35a3d9a3197fa3e8; version=41cec40bc9baba83d36a0718ea94bfe63189274a <f111de0f010308949254ee1cc45df8e6b8e1d7d4; version=41cec40bc9baba83d36a0718ea94bfe63189274a <f8fd9f0d57af4f8f48b383ec28287af85b47cb9f; version=6.6

Published CVSS scores

7.8Linux Kernel CVE TeamCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1499.004Application 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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