CVE-2023-54304

Kernel crash via unchecked device-match dereference

Published Dec 30, 2025 · Updated Dec 30, 2025

NULL pointer dereference in Linux kernel meson_sm firmware-driver probing in affected releases from 5.5 allows attackers to crash the kernel. The meson_sm_probe function accesses the data member of of_match_device() without first checking whether the returned match pointer is NULL. The fault requires platform-driver probing to find no matching device-tree entry; published sources identify no attacker-controlled path to that state, so exposure is hardware and configuration dependent.

CVSS severity5.5
Medium
EPSS probability0.20%
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 Linux kernel meson_sm firmware-driver probing in affected releases from 5.5 allows attackers to crash the kernel. The meson_sm_probe function accesses the data member of of_match_device() without first checking whether the returned match pointer is NULL. The fault requires platform-driver probing to find no matching device-tree entry; published sources identify no attacker-controlled path to that state, so exposure is hardware and configuration dependent.

The record

CVE
CVE-2023-54304
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=525ae72d9f0b5cf027f1c78c84e41c90e86df026 <fba9c24c196310546f13c77ff66d0741155fa771
  2. Affected versionversion=5.5
  3. Affected versionversion=8cde3c2153e8f57be884c0e73f18bc4de150e870 <2d6c4a1a4e6678cb98dd57964f133a995ecc91c1
  4. Affected versionversion=8cde3c2153e8f57be884c0e73f18bc4de150e870 <502dfc5875bab9ae5d6a2939146c2c5e5683be40
  5. Affected versionversion=8cde3c2153e8f57be884c0e73f18bc4de150e870 <68f3209546b5083f8bffa46f7173cc05191eace1
  6. Affected versionversion=8cde3c2153e8f57be884c0e73f18bc4de150e870 <9f4017cac70c04090dd4f672e755d6c875af67d8
  7. Affected versionversion=8cde3c2153e8f57be884c0e73f18bc4de150e870 <bd3a6b6d5dd863dbbe17985c7612159cf4533cad
  8. Affected versionversion=8cde3c2153e8f57be884c0e73f18bc4de150e870 <f2ed165619c16577c02b703a114a1f6b52026df4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=525ae72d9f0b5cf027f1c78c84e41c90e86df026 <fba9c24c196310546f13c77ff66d0741155fa771; version=5.5; version=8cde3c2153e8f57be884c0e73f18bc4de150e870 <2d6c4a1a4e6678cb98dd57964f133a995ecc91c1; version=8cde3c2153e8f57be884c0e73f18bc4de150e870 <502dfc5875bab9ae5d6a2939146c2c5e5683be40; version=8cde3c2153e8f57be884c0e73f18bc4de150e870 <68f3209546b5083f8bffa46f7173cc05191eace1; version=8cde3c2153e8f57be884c0e73f18bc4de150e870 <9f4017cac70c04090dd4f672e755d6c875af67d8; version=8cde3c2153e8f57be884c0e73f18bc4de150e870 <bd3a6b6d5dd863dbbe17985c7612159cf4533cad; version=8cde3c2153e8f57be884c0e73f18bc4de150e870 <f2ed165619c16577c02b703a114a1f6b52026df4

Published CVSS scores

4.6TenableAV:L/AC:L/Au:S/C:N/I:N/A:C
5.5TenableCVSS: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

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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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