CVE-2024-35954Public exploit

Kernel crash via SCSI device teardown race

Published May 20, 2024 · Updated Aug 5, 2026

Race condition in the SCSI generic driver in Linux allows local users to crash the kernel during concurrent device teardown. sg_remove_sfp_usercontext() drops the final scsi_device reference before sg_device_destroy() reads its request_queue, leaving a NULL parent queue. Triggering the fault requires local access to an sg device and a concurrent close and device-removal sequence; the resulting kernel exception interrupts the host.

CVSS severity7.8
High
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

Race condition in the SCSI generic driver in Linux allows local users to crash the kernel during concurrent device teardown. sg_remove_sfp_usercontext() drops the final scsi_device reference before sg_device_destroy() reads its request_queue, leaving a NULL parent queue. Triggering the fault requires local access to an sg device and a concurrent close and device-removal sequence; the resulting kernel exception interrupts the host.

The record

CVE
CVE-2024-35954
Published
May 20, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 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=4cc664e59bf2553771e4c9e90f758f7434cfdc22
  2. Affected versionversion=6.4.7 <6.5
  3. Affected versionversion=6.5
  4. Affected versionversion=db59133e927916d8a25ee1fd8264f2808040909d <27f58c04a8f438078583041468ec60597841284d
  5. Affected versionversion=db59133e927916d8a25ee1fd8264f2808040909d <46af9047523e2517712ae8e71d984286c626e022
  6. Affected versionversion=db59133e927916d8a25ee1fd8264f2808040909d <b0d1ebcc1a9560e494ea9b3ee808540db26c5086

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4cc664e59bf2553771e4c9e90f758f7434cfdc22; version=6.4.7 <6.5; version=6.5; version=db59133e927916d8a25ee1fd8264f2808040909d <27f58c04a8f438078583041468ec60597841284d; version=db59133e927916d8a25ee1fd8264f2808040909d <46af9047523e2517712ae8e71d984286c626e022; version=db59133e927916d8a25ee1fd8264f2808040909d <b0d1ebcc1a9560e494ea9b3ee808540db26c5086

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 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 exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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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