CVE-2024-46673

Kernel crash via stale aacraid queue pointer

Published Sep 13, 2024 · Updated Aug 5, 2026

Double free in the aacraid SCSI driver in affected Linux kernels allows local users to crash the kernel during adapter probing. If aac_init_adapter() fails after allocating aac_dev::queues, it frees the allocation without clearing the member, and aac_probe_one() frees the stale pointer again on its error path. Reachability requires the aacraid driver and an adapter-initialization failure after queue allocation; the second free can corrupt kernel memory or terminate the system.

CVSS severity7.8
High
EPSS probability0.29%
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 the aacraid SCSI driver in affected Linux kernels allows local users to crash the kernel during adapter probing. If aac_init_adapter() fails after allocating aac_dev::queues, it frees the allocation without clearing the member, and aac_probe_one() frees the stale pointer again on its error path. Reachability requires the aacraid driver and an adapter-initialization failure after queue allocation; the second free can corrupt kernel memory or terminate the system.

The record

CVE
CVE-2024-46673
Published
Sep 13, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 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=2.6.15
  2. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <4b540ec7c0045c2d01c4e479f34bbc8f147afa4c
  3. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <564e1986b00c5f05d75342f8407f75f0a17b94df
  4. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <60962c3d8e18e5d8dfa16df788974dd7f35bd87a
  5. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <85449b28ff6a89c4513115e43ddcad949b5890c9
  6. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <8a3995a3ffeca280a961b59f5c99843d81b15929
  7. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <919ddf8336f0b84c0453bac583808c9f165a85c2
  8. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <9e96dea7eff6f2bbcd0b42a098012fc66af9eb69
  9. Affected versionversion=8e0c5ebde82b08f6d996e11983890fc4cc085fab <d237c7d06ffddcdb5d36948c527dc01284388218

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.15; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <4b540ec7c0045c2d01c4e479f34bbc8f147afa4c; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <564e1986b00c5f05d75342f8407f75f0a17b94df; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <60962c3d8e18e5d8dfa16df788974dd7f35bd87a; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <85449b28ff6a89c4513115e43ddcad949b5890c9; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <8a3995a3ffeca280a961b59f5c99843d81b15929; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <919ddf8336f0b84c0453bac583808c9f165a85c2; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <9e96dea7eff6f2bbcd0b42a098012fc66af9eb69; version=8e0c5ebde82b08f6d996e11983890fc4cc085fab <d237c7d06ffddcdb5d36948c527dc01284388218

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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-415Double Free
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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