CVE-2024-46823

Kernel panic via expired KUnit driver name

Published Sep 27, 2024 · Updated Aug 5, 2026

Use-after-scope in Linux 6.8 through 6.10.9 allows local users to panic a KASAN-enabled kernel by running the KUnit overflow test. overflow_allocation_test passes its stack-allocated device_name array through kunit_device_register, which later reuses the expired pointer as a driver name. The crash requires local access to execute this diagnostic test on a KASAN-enabled kernel; no confidentiality or integrity impact is reported.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-scope in Linux 6.8 through 6.10.9 allows local users to panic a KASAN-enabled kernel by running the KUnit overflow test. overflow_allocation_test passes its stack-allocated device_name array through kunit_device_register, which later reuses the expired pointer as a driver name. The crash requires local access to execute this diagnostic test on a KASAN-enabled kernel; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2024-46823
Published
Sep 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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=6.8
  2. Affected versionversion=d03c720e03bd9bf0b784d80b5d3ede7e2daf3b6e <92e9bac18124682c4b99ede9ee3bcdd68f121e92
  3. Affected versionversion=d03c720e03bd9bf0b784d80b5d3ede7e2daf3b6e <d1207f07decc66546a7fa463d2f335a856c986ef

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=d03c720e03bd9bf0b784d80b5d3ede7e2daf3b6e <92e9bac18124682c4b99ede9ee3bcdd68f121e92; version=d03c720e03bd9bf0b784d80b5d3ede7e2daf3b6e <d1207f07decc66546a7fa463d2f335a856c986ef

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

No sourced classifications are available.

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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