CVE-2023-52678

Kernel memory disclosure and panic via empty list

Published May 17, 2024 · Updated Aug 5, 2026

Type confusion in Linux kernel 6.0 and later affected branches allows local users to disclose kernel memory or panic the host through sysfs. The amdkfd topology builders call list_first_entry on an empty io_link_props list, treat the list head as an iolink object, and copy adjacent fields. Exploitation requires local access and an AMD KFD topology with an empty list; a sysfs read can expose kernel pointers or dereference a corrupted GPU pointer.

CVSS severity7.8
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

Type confusion in Linux kernel 6.0 and later affected branches allows local users to disclose kernel memory or panic the host through sysfs. The amdkfd topology builders call list_first_entry on an empty io_link_props list, treat the list head as an iolink object, and copy adjacent fields. Exploitation requires local access and an AMD KFD topology with an empty list; a sysfs read can expose kernel pointers or dereference a corrupted GPU pointer.

The record

CVE
CVE-2023-52678
Published
May 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 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=0f28cca87e9afc22280c44d378d2a6e249933977 <4525525cb7161d08f95d0e47025323dd10214313
  2. Affected versionversion=0f28cca87e9afc22280c44d378d2a6e249933977 <499839eca34ad62d43025ec0b46b80e77065f6d8
  3. Affected versionversion=0f28cca87e9afc22280c44d378d2a6e249933977 <4ac4e023ed7ab1c7c67d2d12b7b6198fcd099e5c
  4. Affected versionversion=0f28cca87e9afc22280c44d378d2a6e249933977 <5024cce888e11e5688f77df81db9e14828495d64
  5. Affected versionversion=6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0f28cca87e9afc22280c44d378d2a6e249933977 <4525525cb7161d08f95d0e47025323dd10214313; version=0f28cca87e9afc22280c44d378d2a6e249933977 <499839eca34ad62d43025ec0b46b80e77065f6d8; version=0f28cca87e9afc22280c44d378d2a6e249933977 <4ac4e023ed7ab1c7c67d2d12b7b6198fcd099e5c; version=0f28cca87e9afc22280c44d378d2a6e249933977 <5024cce888e11e5688f77df81db9e14828495d64; version=6.0

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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

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

No sourced classifications are available.

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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