CVE-2024-53182

Kernel memory corruption via stale BFQ queue

Published Dec 27, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel 6.12 BFQ I/O scheduler allows local users to read or corrupt kernel memory and crash the system. bfq_sync_bfqq_move can free a cooperator queue still referenced by the process I/O context; bic_set_bfqq then dereferences and clears a field in the freed object. Reachability requires low-privileged local block I/O on a device using BFQ plus a cgroup change, enabling disclosure, control-flow hijack, or a kernel panic.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in the Linux kernel 6.12 BFQ I/O scheduler allows local users to read or corrupt kernel memory and crash the system. bfq_sync_bfqq_move can free a cooperator queue still referenced by the process I/O context; bic_set_bfqq then dereferences and clears a field in the freed object. Reachability requires low-privileged local block I/O on a device using BFQ plus a cgroup change, enabling disclosure, control-flow hijack, or a kernel panic.

The record

CVE
CVE-2024-53182
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 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

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=6.12
  2. Affected versionversion=bc3b1e9e7c50e1de0f573eea3871db61dd4787de <7baf94232651f39f7108c23bc9548bff89bdc77b
  3. Affected versionversion=bc3b1e9e7c50e1de0f573eea3871db61dd4787de <cf5a60d971c7b59efb89927919404be655a9e35a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.12; version=bc3b1e9e7c50e1de0f573eea3871db61dd4787de <7baf94232651f39f7108c23bc9548bff89bdc77b; version=bc3b1e9e7c50e1de0f573eea3871db61dd4787de <cf5a60d971c7b59efb89927919404be655a9e35a

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS: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.

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-416Use After Free
T1068Exploitation for Privilege Escalation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo