CVE-2024-56599

Kernel panic via stale SDIO workqueue teardown

Published Dec 27, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux ath10k SDIO driver allows local users to crash the kernel during module removal. ath10k_sdio_remove calls ath10k_core_destroy before destroy_workqueue, freeing and nulling the stored workqueue pointer before destroy_workqueue dereferences it. Administrative privileges, an ath10k SDIO device, and CONFIG_INIT_ON_FREE_DEFAULT_ON are required to reach the panic through rmmod.

CVSS severity5.5
Medium
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

NULL pointer dereference in the Linux ath10k SDIO driver allows local users to crash the kernel during module removal. ath10k_sdio_remove calls ath10k_core_destroy before destroy_workqueue, freeing and nulling the stored workqueue pointer before destroy_workqueue dereferences it. Administrative privileges, an ath10k SDIO device, and CONFIG_INIT_ON_FREE_DEFAULT_ON are required to reach the panic through rmmod.

The record

CVE
CVE-2024-56599
Published
Dec 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1529
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 27, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=3.11
  2. Affected versionversion=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <27d5d217ae7ffb99dd623375a17a7d3418d9c755
  3. Affected versionversion=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <27fda36eedad9e4ec795dc481f307901d1885112
  4. Affected versionversion=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <543c0924d446b21f35701ca084d7feca09511220
  5. Affected versionversion=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <6e5dbd1c04abf2c19b2282915e6fa48b6ccc6921
  6. Affected versionversion=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <95c38953cb1ecf40399a676a1f85dfe2b5780a9a
  7. Affected versionversion=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <b35de9e01fc79c7baac666fb2dcb4ba7698a1d97

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=3.11; version=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <27d5d217ae7ffb99dd623375a17a7d3418d9c755; version=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <27fda36eedad9e4ec795dc481f307901d1885112; version=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <543c0924d446b21f35701ca084d7feca09511220; version=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <6e5dbd1c04abf2c19b2282915e6fa48b6ccc6921; version=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <95c38953cb1ecf40399a676a1f85dfe2b5780a9a; version=5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 <b35de9e01fc79c7baac666fb2dcb4ba7698a1d97

Published CVSS scores

5.5UbuntuCVSS: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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1529System Shutdown/Reboot

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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