CVE-2024-26634

Kernel crash via conflicting network alternate names

Published Mar 18, 2024 · Updated May 23, 2026

Linux kernel 6.1.60 through 6.1.75 and 6.5.9 through 6.8-rc1 allows local users to crash the kernel during namespace removal. default_device_exit_net() returns physical interfaces to init_net but fails to delete alternate names that conflict there, triggering BUG() in net/core/dev.c. Low-privileged local access is required, and reaching BUG() interrupts workloads on the host.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Linux kernel 6.1.60 through 6.1.75 and 6.5.9 through 6.8-rc1 allows local users to crash the kernel during namespace removal. default_device_exit_net() returns physical interfaces to init_net but fails to delete alternate names that conflict there, triggering BUG() in net/core/dev.c. Low-privileged local access is required, and reaching BUG() interrupts workloads on the host.

The record

CVE
CVE-2024-26634
Published
Mar 18, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 2024CVE 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=6.1.60 <6.1.76
  2. Affected versionversion=6.5.9 <6.6
  3. Affected versionversion=6.6
  4. Affected versionversion=673edcffa0960fc154085d639e10f80b6317d3bd <a2232f29bf52c24f827865b3c90829c44b6c695b
  5. Affected versionversion=7663d522099ecc464512164e660bc771b2ff7b64 <8072699aa9e67d1727692cfb3c347263bb627fb9
  6. Affected versionversion=7663d522099ecc464512164e660bc771b2ff7b64 <d09486a04f5da0a812c26217213b89a3b1acf836
  7. Affected versionversion=7663d522099ecc464512164e660bc771b2ff7b64 <e855dded4b70d1975ee7b9fed0c700391e3c8ea6
  8. Affected versionversion=f7a69786fe5ec75d1cdd71b465e74a1adc68ef40

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.1.60 <6.1.76; version=6.5.9 <6.6; version=6.6; version=673edcffa0960fc154085d639e10f80b6317d3bd <a2232f29bf52c24f827865b3c90829c44b6c695b; version=7663d522099ecc464512164e660bc771b2ff7b64 <8072699aa9e67d1727692cfb3c347263bb627fb9; version=7663d522099ecc464512164e660bc771b2ff7b64 <d09486a04f5da0a812c26217213b89a3b1acf836; version=7663d522099ecc464512164e660bc771b2ff7b64 <e855dded4b70d1975ee7b9fed0c700391e3c8ea6; version=f7a69786fe5ec75d1cdd71b465e74a1adc68ef40

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS: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 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

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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