CVE-2024-56556

Local privilege escalation via Binder node use-after-free

Published Dec 27, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux Binder driver 6.12 through 6.12.3 allows local users to gain kernel privileges through BINDER_FREEZE. binder_add_freeze_work drops proc->inner_lock before taking node->lock without first retaining the node, allowing binder_node_release to free it during iteration. An unprivileged process with access to a Binder device can control the race, corrupt kernel memory, escalate privileges, or crash the kernel.

CVSS severity7.8
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux Binder driver 6.12 through 6.12.3 allows local users to gain kernel privileges through BINDER_FREEZE. binder_add_freeze_work drops proc->inner_lock before taking node->lock without first retaining the node, allowing binder_node_release to free it during iteration. An unprivileged process with access to a Binder device can control the race, corrupt kernel memory, escalate privileges, or crash the kernel.

The record

CVE
CVE-2024-56556
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 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=6.12
  2. Affected versionversion=d579b04a52a183db47dfcb7a44304d7747d551e1 <38fbefeb2c140b581ed7de8117a5c90d6dd89c22
  3. Affected versionversion=d579b04a52a183db47dfcb7a44304d7747d551e1 <dc8aea47b928cc153b591b3558829ce42f685074

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=d579b04a52a183db47dfcb7a44304d7747d551e1 <38fbefeb2c140b581ed7de8117a5c90d6dd89c22; version=d579b04a52a183db47dfcb7a44304d7747d551e1 <dc8aea47b928cc153b591b3558829ce42f685074

Published CVSS scores

7.8Linux kernel 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-416Use After Free
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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