CVE-2024-50081

Kernel crash via premature blk-mq handler enablement

Published Oct 29, 2024 · Updated May 11, 2026

Denial of service in Linux kernel 6.10 through 6.11.4 and 6.12-rc1 through 6.12-rc3 allows local users to trigger a kernel oops. The blk_mq_init_allocated_queue path enables the CPU-hotplug handler before assigning q->tag_set, so the handler consults queue-mapping state through an unset pointer. Reaching the faulty handler requires local low-privileged access, and the documented consequence is a kernel crash rather than data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux kernel 6.10 through 6.11.4 and 6.12-rc1 through 6.12-rc3 allows local users to trigger a kernel oops. The blk_mq_init_allocated_queue path enables the CPU-hotplug handler before assigning q->tag_set, so the handler consults queue-mapping state through an unset pointer. Reaching the faulty handler requires local low-privileged access, and the documented consequence is a kernel crash rather than data disclosure or modification.

The record

CVE
CVE-2024-50081
Published
Oct 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=6.10
  2. Affected versionversion=7b815817aa58d2e2101feb2fcf64c60cae0b2695 <c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95
  3. Affected versionversion=7b815817aa58d2e2101feb2fcf64c60cae0b2695 <d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87
  4. Affected versionversion=dbd0829d2458d7292b82bfc9d02cce23935b198f <25466e5b4bb11a8415ce8d0be89ab77135f7e444
  5. Affected versionversion=ff2d6ef107b1b1ec6b469073b4dda0dc744e343c <73d964ce4bc8b4de88a7c2e40df494f0d5cd8950

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=7b815817aa58d2e2101feb2fcf64c60cae0b2695 <c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95; version=7b815817aa58d2e2101feb2fcf64c60cae0b2695 <d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87; version=dbd0829d2458d7292b82bfc9d02cce23935b198f <25466e5b4bb11a8415ce8d0be89ab77135f7e444; version=ff2d6ef107b1b1ec6b469073b4dda0dc744e343c <73d964ce4bc8b4de88a7c2e40df494f0d5cd8950

Published CVSS scores

5.5CISA ADPCVSS: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

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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 exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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