CVE-2024-41096

Kernel memory read via stale MSI descriptor

Published Jul 29, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux PCI/MSI subsystem allows local users to read freed kernel memory during failed MSI initialization. When MSI allocation fails, msi_domain_free_locked frees the descriptor before msi_capability_init uses it to unmask interrupts on the error path. Reaching the flaw requires local low-privileged access and an MSI allocation failure; the published mechanism establishes a stale read but does not document code execution.

CVSS severity7.8
High
EPSS probability0.24%
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 the Linux PCI/MSI subsystem allows local users to read freed kernel memory during failed MSI initialization. When MSI allocation fails, msi_domain_free_locked frees the descriptor before msi_capability_init uses it to unmask interrupts on the error path. Reaching the flaw requires local low-privileged access and an MSI allocation failure; the published mechanism establishes a stale read but does not document code execution.

The record

CVE
CVE-2024-41096
Published
Jul 29, 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. Jul 29, 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=5.17
  2. Affected versionversion=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <0ae40b2d0a5de6b045504098e365d4fdff5bbeba
  3. Affected versionversion=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <45fc8d20e0768ab0a0ad054081d0f68aa3c83976
  4. Affected versionversion=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <9eee5330656bf92f51cb1f09b2dc9f8cf975b3d1
  5. Affected versionversion=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <ff1121d2214b794dc1772081f27bdd90721a84bc

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <0ae40b2d0a5de6b045504098e365d4fdff5bbeba; version=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <45fc8d20e0768ab0a0ad054081d0f68aa3c83976; version=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <9eee5330656bf92f51cb1f09b2dc9f8cf975b3d1; version=bf6e054e0e3fbc9614355b760e18c8a14f952a4e <ff1121d2214b794dc1772081f27bdd90721a84bc

Published CVSS scores

7.8NISTCVSS: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.

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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-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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