CVE-2024-47688

Kernel panic via null driver-name cleanup

Published Oct 21, 2024 · Updated May 23, 2026

NULL pointer dereference in the Linux kernel driver core allows local users to trigger a kernel panic during driver registration. If kasprintf fails in module_add_driver, its exit path removes a second sysfs link with a null driver_name, causing kernfs_name_hash to pass that pointer to strlen. The demonstrated path requires local access, driver loading, and an injected allocation failure; the published record does not establish direct control of that failure.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel driver core allows local users to trigger a kernel panic during driver registration. If kasprintf fails in module_add_driver, its exit path removes a second sysfs link with a null driver_name, causing kernfs_name_hash to pass that pointer to strlen. The demonstrated path requires local access, driver loading, and an injected allocation failure; the published record does not establish direct control of that failure.

The record

CVE
CVE-2024-47688
Published
Oct 21, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 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

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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=28f5a08600d0ea6831629d450193c4045094e729 <b8e45b910525704010d10c9dcbf2abf3005aa97c
  2. Affected versionversion=51dacb1b0467b616463a334cbcd048f5710ba2aa
  3. Affected versionversion=6.10
  4. Affected versionversion=6.6.33 <6.6.54
  5. Affected versionversion=6.9.4 <6.10
  6. Affected versionversion=85d2b0aa170351380be39fe4ff7973df1427fe76 <18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8
  7. Affected versionversion=85d2b0aa170351380be39fe4ff7973df1427fe76 <4b5d48b7a29cc6d508121a4b4e0c97a891e5273c
  8. Affected versionversion=85d2b0aa170351380be39fe4ff7973df1427fe76 <dcb9d581dee4c23f2378b6650511ece80dda4e2f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=28f5a08600d0ea6831629d450193c4045094e729 <b8e45b910525704010d10c9dcbf2abf3005aa97c; version=51dacb1b0467b616463a334cbcd048f5710ba2aa; version=6.10; version=6.6.33 <6.6.54; version=6.9.4 <6.10; version=85d2b0aa170351380be39fe4ff7973df1427fe76 <18ec12c97b39ff6aa15beb8d2b25d15cd44b87d8; version=85d2b0aa170351380be39fe4ff7973df1427fe76 <4b5d48b7a29cc6d508121a4b4e0c97a891e5273c; version=85d2b0aa170351380be39fe4ff7973df1427fe76 <dcb9d581dee4c23f2378b6650511ece80dda4e2f

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

CWE-476NULL Pointer Dereference
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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