CVE-2024-46834

Kernel crash via skipped RSS channel bounds check

Published Sep 27, 2024 · Updated Aug 5, 2026

Improper channel validation in Linux kernel 4.6 through 6.10.9 allows local users to crash the system through ethtool. The ethnl_set_channels and ethtool_set_channels paths treat RSS-table retrieval or allocation failure as a zero maximum, skipping rejection of out-of-bounds channel identifiers. Local access and permission to change network-interface channels are required; the bounded consequence is a kernel crash and service interruption.

CVSS severity5.5
Medium
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

Improper channel validation in Linux kernel 4.6 through 6.10.9 allows local users to crash the system through ethtool. The ethnl_set_channels and ethtool_set_channels paths treat RSS-table retrieval or allocation failure as a zero maximum, skipping rejection of out-of-bounds channel identifiers. Local access and permission to change network-interface channels are required; the bounded consequence is a kernel crash and service interruption.

The record

CVE
CVE-2024-46834
Published
Sep 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 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=4.6
  2. Affected versionversion=d4ab4286276fcd6c155bafdf4422b712068d2516 <101737d8b88dbd4be6010bac398fe810f1950036
  3. Affected versionversion=d4ab4286276fcd6c155bafdf4422b712068d2516 <2899d58462ba868287d6ff3acad3675e7adf934f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.6; version=d4ab4286276fcd6c155bafdf4422b712068d2516 <101737d8b88dbd4be6010bac398fe810f1950036; version=d4ab4286276fcd6c155bafdf4422b712068d2516 <2899d58462ba868287d6ff3acad3675e7adf934f

Published CVSS scores

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

T1499.004Application or System Exploitation

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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