CVE-2024-26775

System hang via AoE lock-order inversion

Published Apr 3, 2024 · Updated May 11, 2026

Improper locking in the Linux kernel AoE block driver from 5.11 allows local users to hang the system during concurrent device setup. aoeblk_gdalloc calls set_capacity while holding d->lock, creating an inverse dependency with bd_size_lock when aoecmd_cfg_rsp interrupts another capacity update. Exploitation requires local access and the AoE driver, and the resulting deadlock stops forward progress rather than exposing or modifying data.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper locking in the Linux kernel AoE block driver from 5.11 allows local users to hang the system during concurrent device setup. aoeblk_gdalloc calls set_capacity while holding d->lock, creating an inverse dependency with bd_size_lock when aoecmd_cfg_rsp interrupts another capacity update. Exploitation requires local access and the AoE driver, and the resulting deadlock stops forward progress rather than exposing or modifying data.

The record

CVE
CVE-2024-26775
Published
Apr 3, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 3, 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=5.11
  2. Affected versionversion=a782483cc1f875355690625d8253a232f2581418 <19a77b27163820f793b4d022979ffdca8f659b77
  3. Affected versionversion=a782483cc1f875355690625d8253a232f2581418 <2499fa286fb010ceb289950050199f33c26667b9
  4. Affected versionversion=a782483cc1f875355690625d8253a232f2581418 <2d623c94fbba3554f4446ba6f3c764994e8b0d26
  5. Affected versionversion=a782483cc1f875355690625d8253a232f2581418 <673629018ba04906899dcb631beec34d871f709c
  6. Affected versionversion=a782483cc1f875355690625d8253a232f2581418 <e169bd4fb2b36c4b2bee63c35c740c85daeb2e86

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=a782483cc1f875355690625d8253a232f2581418 <19a77b27163820f793b4d022979ffdca8f659b77; version=a782483cc1f875355690625d8253a232f2581418 <2499fa286fb010ceb289950050199f33c26667b9; version=a782483cc1f875355690625d8253a232f2581418 <2d623c94fbba3554f4446ba6f3c764994e8b0d26; version=a782483cc1f875355690625d8253a232f2581418 <673629018ba04906899dcb631beec34d871f709c; version=a782483cc1f875355690625d8253a232f2581418 <e169bd4fb2b36c4b2bee63c35c740c85daeb2e86

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.

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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

CWE-667Improper Locking
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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