CVE-2024-41087

Kernel crash via ATA host double free

Published Jul 29, 2024 · Updated Aug 5, 2026

Double free in libata-core in the Linux kernel allows local users to crash the kernel by triggering an ATA host-allocation failure. In ata_host_alloc(), the error path releases a device-resource group whose ata_host_release() callback frees host, then kfree(host) frees the same allocation again. Reachability requires ata_port_alloc() to fail after the resource group opens; the demonstrated consequence is a kernel BUG and system interruption.

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

Double free in libata-core in the Linux kernel allows local users to crash the kernel by triggering an ATA host-allocation failure. In ata_host_alloc(), the error path releases a device-resource group whose ata_host_release() callback frees host, then kfree(host) frees the same allocation again. Reachability requires ata_port_alloc() to fail after the resource group opens; the demonstrated consequence is a kernel BUG and system interruption.

The record

CVE
CVE-2024-41087
Published
Jul 29, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415
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=4.17
  2. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <010de9acbea58fbcbda08e3793d6262086a493fe
  3. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <062e256516d7db5e7dcdef117f52025cd5c456e3
  4. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <290073b2b557e4dc21ee74a1e403d9ae79e393a2
  5. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <56f1c7e290cd6c69c948fcd2e2a49e6a637ec38f
  6. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <5dde5f8b790274723640d29a07c5a97d57d62047
  7. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <702c1edbafb2e6f9d20f6d391273b5be09d366a5
  8. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <8106da4d88bbaed809e023cc8014b766223d6e76
  9. Affected versionversion=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <ab9e0c529eb7cafebdd31fe1644524e80a48b05d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.17; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <010de9acbea58fbcbda08e3793d6262086a493fe; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <062e256516d7db5e7dcdef117f52025cd5c456e3; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <290073b2b557e4dc21ee74a1e403d9ae79e393a2; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <56f1c7e290cd6c69c948fcd2e2a49e6a637ec38f; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <5dde5f8b790274723640d29a07c5a97d57d62047; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <702c1edbafb2e6f9d20f6d391273b5be09d366a5; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <8106da4d88bbaed809e023cc8014b766223d6e76; version=dafd6c496381c1cd1f5ba9ad953e810bdcc931bc <ab9e0c529eb7cafebdd31fe1644524e80a48b05d

Published CVSS scores

7.8kernel.orgCVSS: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-415Double 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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