CVE-2024-56783

Local service interruption via cgroup depth assertion

Published Jan 8, 2025 · Updated May 23, 2026

Reachable assertion in affected Linux kernel versions allows local users to interrupt service via an excessive cgroup hierarchy. The nft_socket_cgroup_subtree_level() path invokes WARN_ON_ONCE when the current cgroup root level exceeds 255 instead of returning ERANGE without a warning. Reaching the path requires local low-privileged access and a deep cgroup hierarchy; the result is a kernel warning and a host panic when panic-on-warning behavior is enabled.

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

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reachable assertion in affected Linux kernel versions allows local users to interrupt service via an excessive cgroup hierarchy. The nft_socket_cgroup_subtree_level() path invokes WARN_ON_ONCE when the current cgroup root level exceeds 255 instead of returning ERANGE without a warning. Reaching the path requires local low-privileged access and a deep cgroup hierarchy; the result is a kernel warning and a host panic when panic-on-warning behavior is enabled.

The record

CVE
CVE-2024-56783
Published
Jan 8, 2025
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-617, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 8, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=6.10.12 <6.11
  2. Affected versionversion=6.11
  3. Affected versionversion=6.1.112 <6.1.120
  4. Affected versionversion=6.6.53 <6.6.66
  5. Affected versionversion=7f3287db654395f9c5ddd246325ff7889f550286 <b7529880cb961d515642ce63f9d7570869bbbdc3
  6. Affected versionversion=7f3287db654395f9c5ddd246325ff7889f550286 <e227c042580ab065edc610c9ddc9bea691e6fc4d
  7. Affected versionversion=ace0db36b4a1db07a48517c4f04488d1cd05e5f5 <7064a6daa4a700a298fe3aee11dea296bfe59fc4
  8. Affected versionversion=ecc5368315af8473fe052cb928e53756dbfe4403
  9. Affected versionversion=f07e28e4c623168f9fa5c00f518bd341d4014aa6 <2f9bec0a749eb646b384fde0c7b7c24687b2ffae

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10.12 <6.11; version=6.11; version=6.1.112 <6.1.120; version=6.6.53 <6.6.66; version=7f3287db654395f9c5ddd246325ff7889f550286 <b7529880cb961d515642ce63f9d7570869bbbdc3; version=7f3287db654395f9c5ddd246325ff7889f550286 <e227c042580ab065edc610c9ddc9bea691e6fc4d; version=ace0db36b4a1db07a48517c4f04488d1cd05e5f5 <7064a6daa4a700a298fe3aee11dea296bfe59fc4; version=ecc5368315af8473fe052cb928e53756dbfe4403; version=f07e28e4c623168f9fa5c00f518bd341d4014aa6 <2f9bec0a749eb646b384fde0c7b7c24687b2ffae

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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-617Reachable Assertion
T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo