CVE-2024-53163

Kernel denial of service via firmware-object off-by-one

Published Dec 24, 2024 · Updated May 11, 2026

Off-by-one error in the QAT 420xx driver in Linux 6.8 through 6.11.10 and 6.12 through 6.12.1 allows local users to interrupt the kernel. A firmware-object index equal to num_objs passes uof_get_name's greater-than check and reads one element beyond the fw_objs array. Local low-privileged access and an active QAT 420xx driver are required; published sources do not specify whether interruption occurs by hang, crash, or reboot.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Off-by-one error in the QAT 420xx driver in Linux 6.8 through 6.11.10 and 6.12 through 6.12.1 allows local users to interrupt the kernel. A firmware-object index equal to num_objs passes uof_get_name's greater-than check and reads one element beyond the fw_objs array. Local low-privileged access and an active QAT 420xx driver are required; published sources do not specify whether interruption occurs by hang, crash, or reboot.

The record

CVE
CVE-2024-53163
Published
Dec 24, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-193, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 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=6.8
  2. Affected versionversion=fcf60f4bcf54952cc14d14178c358be222dbeb43 <91eef1ad75f03d37dba926b73f9dd6f058bc4d58
  3. Affected versionversion=fcf60f4bcf54952cc14d14178c358be222dbeb43 <93a11608fb3720e1bc2b19a2649ac2b49cca1921
  4. Affected versionversion=fcf60f4bcf54952cc14d14178c358be222dbeb43 <c23661a36eea840b657e485d48ed88b246da1bb8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=fcf60f4bcf54952cc14d14178c358be222dbeb43 <91eef1ad75f03d37dba926b73f9dd6f058bc4d58; version=fcf60f4bcf54952cc14d14178c358be222dbeb43 <93a11608fb3720e1bc2b19a2649ac2b49cca1921; version=fcf60f4bcf54952cc14d14178c358be222dbeb43 <c23661a36eea840b657e485d48ed88b246da1bb8

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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

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-193Off-by-one Error
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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