CVE-2024-47732

Conditional kernel memory corruption via post-free callback

Published Oct 21, 2024 · Updated Aug 5, 2026

Use-after-free in Linux 6.8 through 6.10.12 and 6.11 through 6.11.1 allows local users to corrupt memory if an IAA free callback exists. The remove_device_compression_modes function releases device_mode through free_device_compression_mode, then passes the freed pointer to iaa_compression_modes[i]->free. The path requires Intel IAA hardware and a non-NULL free callback; upstream states that no implementation supplies the callback, so the call is dead code in mainline kernels.

CVSS severity7.0
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Linux 6.8 through 6.10.12 and 6.11 through 6.11.1 allows local users to corrupt memory if an IAA free callback exists. The remove_device_compression_modes function releases device_mode through free_device_compression_mode, then passes the freed pointer to iaa_compression_modes[i]->free. The path requires Intel IAA hardware and a non-NULL free callback; upstream states that no implementation supplies the callback, so the call is dead code in mainline kernels.

The record

CVE
CVE-2024-47732
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 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

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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=6.8
  2. Affected versionversion=b190447e0fa3ef7355480d641d078962e03768b4 <b5d534b473e2c8d3e4560be2dd6c12a8eb9d61e9
  3. Affected versionversion=b190447e0fa3ef7355480d641d078962e03768b4 <c66f0be993ba52410edab06124c54ecf143b05c1
  4. Affected versionversion=b190447e0fa3ef7355480d641d078962e03768b4 <e0d3b845a1b10b7b5abdad7ecc69d45b2aab3209

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=b190447e0fa3ef7355480d641d078962e03768b4 <b5d534b473e2c8d3e4560be2dd6c12a8eb9d61e9; version=b190447e0fa3ef7355480d641d078962e03768b4 <c66f0be993ba52410edab06124c54ecf143b05c1; version=b190447e0fa3ef7355480d641d078962e03768b4 <e0d3b845a1b10b7b5abdad7ecc69d45b2aab3209

Published CVSS scores

7.0Linux kernel CNACVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5SUSECVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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

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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