CVE-2024-50159

Kernel memory corruption via duplicated SCMI cleanup

Published Nov 7, 2024 · Updated Aug 5, 2026

Double free in ARM SCMI debugfs setup in Linux 6.3 and affected later branches allows local users to corrupt kernel memory. When devm_add_action_or_reset() fails, it invokes the registered cleanup, but scmi_debugfs_common_setup() calls the same cleanup again and frees dbg->name twice. Reachability requires the ARM SCMI debugfs initialization path and an action-registration failure; the published record identifies no reliable user-controlled trigger.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in ARM SCMI debugfs setup in Linux 6.3 and affected later branches allows local users to corrupt kernel memory. When devm_add_action_or_reset() fails, it invokes the registered cleanup, but scmi_debugfs_common_setup() calls the same cleanup again and frees dbg->name twice. Reachability requires the ARM SCMI debugfs initialization path and an action-registration failure; the published record identifies no reliable user-controlled trigger.

The record

CVE
CVE-2024-50159
Published
Nov 7, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 7, 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=6.3
  2. Affected versionversion=c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329 <39b13dce1a91cdfc3bec9238f9e89094551bd428
  3. Affected versionversion=c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329 <6d91d07913aee90556362d648d6a28a1eda419dc
  4. Affected versionversion=c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329 <fb324fdaf546bf14bc4c17e0037bca6cb952b121

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.3; version=c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329 <39b13dce1a91cdfc3bec9238f9e89094551bd428; version=c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329 <6d91d07913aee90556362d648d6a28a1eda419dc; version=c3d4aed763ce4a39f8ed36c7b7cd9a6a35971329 <fb324fdaf546bf14bc4c17e0037bca6cb952b121

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS: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-415Double Free

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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