CVE-2024-35982

Kernel hang via nonterminating translation-table resize

Published May 20, 2024 · Updated May 12, 2026

Infinite loop in batman-adv in Linux 3.13 and later allows local users to hang kernel work through an incompatible mesh setup. The local translation-table resize loop repeatedly halves a timeout until it reaches zero, then keeps trying to purge entries that cannot fit the available MTU. Reaching the loop requires local control of batman-adv interfaces, VLANs, non-purgeable addresses, MTU, or fragmentation settings; the consequence is a stuck kernel worker and continuous log output.

CVSS severity5.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite loop in batman-adv in Linux 3.13 and later allows local users to hang kernel work through an incompatible mesh setup. The local translation-table resize loop repeatedly halves a timeout until it reaches zero, then keeps trying to purge entries that cannot fit the available MTU. Reaching the loop requires local control of batman-adv interfaces, VLANs, non-purgeable addresses, MTU, or fragmentation settings; the consequence is a stuck kernel worker and continuous log output.

The record

CVE
CVE-2024-35982
Published
May 20, 2024
Updated
May 12, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classifications
CWE-835, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=0 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=3.13; version=a19d3d85e1b854e4a483a55d740a42458085560d <04720ea2e6c64459a90ca28570ea78335eccd924; version=a19d3d85e1b854e4a483a55d740a42458085560d <3fe79b2c83461edbbf86ed8a6f3924820ff89259; version=a19d3d85e1b854e4a483a55d740a42458085560d <4ca2a5fb54ea2cc43edea614207fcede562d91c2; version=a19d3d85e1b854e4a483a55d740a42458085560d <70a8be9dc2fb65d67f8c1e0c88c587e08e2e575d; version=a19d3d85e1b854e4a483a55d740a42458085560d <87b6af1a7683e021710c08fc0551fc078346032f; version=a19d3d85e1b854e4a483a55d740a42458085560d <b1f532a3b1e6d2e5559c7ace49322922637a28aa; version=a19d3d85e1b854e4a483a55d740a42458085560d <b3ddf6904073990492454b1dd1c10a24be8c74c6; version=a19d3d85e1b854e4a483a55d740a42458085560d <ca54e2671548616ad34885f90d4f26f7adb088f0
The Linux Kernel Organization · Linux Kernelversion=3.13

Published CVSS scores

5.1CISA ADPCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5Siemens ProductCERTCVSS: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.

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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-835Loop with Unreachable Exit Condition ('Infinite Loop')
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

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Your stack

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