CVE-2024-56615

Kernel memory corruption via signed DEVMAP indices

Published Dec 27, 2024 · Updated May 11, 2026

Out-of-bounds writes in Linux kernel BPF DEVMAP handling from 4.14 allow local users to corrupt kernel memory by deleting map elements. dev_map_delete_elem, dev_map_hash_delete_elem, and dev_map_free use signed int indices for values sourced or derived from unsigned map bounds, permitting indexing beyond the DEVMAP entry array. Reaching the flaw requires local low-privileged access capable of operating BPF DEVMAP objects; the demonstrated consequence is a kernel page fault and oops during deferred map release.

CVSS severity7.8
High
EPSS probability0.26%
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

Out-of-bounds writes in Linux kernel BPF DEVMAP handling from 4.14 allow local users to corrupt kernel memory by deleting map elements. dev_map_delete_elem, dev_map_hash_delete_elem, and dev_map_free use signed int indices for values sourced or derived from unsigned map bounds, permitting indexing beyond the DEVMAP entry array. Reaching the flaw requires local low-privileged access capable of operating BPF DEVMAP objects; the demonstrated consequence is a kernel page fault and oops during deferred map release.

The record

CVE
CVE-2024-56615
Published
Dec 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=4.14
  2. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <0f170e91d3063ca60baec4bd9f544faf3bfe29eb
  3. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <178e31df1fb3d9e0890eb471da16709cbc82edee
  4. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <70f3de869865f9c3da0508a5ea29f6f4c1889057
  5. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <8e858930695d3ebec423e85384c95427258c294f
  6. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <98c03d05936d846073df8f550e9e8bf0dde1d77f
  7. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <ab244dd7cf4c291f82faacdc50b45cc0f55b674d
  8. Affected versionversion=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <ad34306ac6836e5dd096b7d0ad4aa20cb7c8d9e5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.14; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <0f170e91d3063ca60baec4bd9f544faf3bfe29eb; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <178e31df1fb3d9e0890eb471da16709cbc82edee; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <70f3de869865f9c3da0508a5ea29f6f4c1889057; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <8e858930695d3ebec423e85384c95427258c294f; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <98c03d05936d846073df8f550e9e8bf0dde1d77f; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <ab244dd7cf4c291f82faacdc50b45cc0f55b674d; version=546ac1ffb70d25b56c1126940e5ec639c4dd7413 <ad34306ac6836e5dd096b7d0ad4aa20cb7c8d9e5

Published CVSS scores

7.8CISA ADPCVSS: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
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