CVE-2024-46868

Driver-operation hang via unreleased acquisition lock

Published Sep 27, 2024 · Updated May 11, 2026

Improper locking in the Qualcomm UEFI secure-app driver in Linux 6.7 through 6.10.10 allows local users to hang driver operations. When __qcuefi is unset, qcuefi_acquire exits without releasing its lock, so a later attempt to set the reference deadlocks. Low-privileged local access is required, and the consequence is limited to availability with no reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.14%
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 Qualcomm UEFI secure-app driver in Linux 6.7 through 6.10.10 allows local users to hang driver operations. When __qcuefi is unset, qcuefi_acquire exits without releasing its lock, so a later attempt to set the reference deadlocks. Low-privileged local access is required, and the consequence is limited to availability with no reported data disclosure or modification.

The record

CVE
CVE-2024-46868
Published
Sep 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, CWE-833
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.7
  2. Affected versionversion=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <8c6a5a1fc02ad1d62d06897ab330693d4d27cd03
  3. Affected versionversion=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <db213b0cfe3268d8b1d382b3bcc999c687a2567f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <8c6a5a1fc02ad1d62d06897ab330693d4d27cd03; version=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <db213b0cfe3268d8b1d382b3bcc999c687a2567f

Published CVSS scores

5.5UbuntuCVSS: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-667Improper Locking
CWE-833Deadlock

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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