CVE-2024-53233

Kernel crash via incorrect symbol_put argument

Published Dec 27, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux kernel 5.17 and later affected branches allows local users to trigger a kernel BUG. In utf8_load(), the unsupported-version error path passes the loaded utf8_data_table pointer to symbol_put(), which expects the symbol's unique name, causing __symbol_put() to fail. A user must locally request an unsupported UTF-8 version; successful exploitation interrupts the running system without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.22%
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 5.17 and later affected branches allows local users to trigger a kernel BUG. In utf8_load(), the unsupported-version error path passes the loaded utf8_data_table pointer to symbol_put(), which expects the symbol's unique name, causing __symbol_put() to fail. A user must locally request an unsupported UTF-8 version; successful exploitation interrupts the running system without reported data disclosure or modification.

The record

CVE
CVE-2024-53233
Published
Dec 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

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=2b3d047870120bcd46d7cc257d19ff49328fd585 <156bb2c569cd869583c593d27a5bd69e7b2a4264
  2. Affected versionversion=2b3d047870120bcd46d7cc257d19ff49328fd585 <4387cef540f36c2c9297460758cc2438305a24a0
  3. Affected versionversion=2b3d047870120bcd46d7cc257d19ff49328fd585 <6504dd27123966dc455494cb55217c04ca479121
  4. Affected versionversion=2b3d047870120bcd46d7cc257d19ff49328fd585 <89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3
  5. Affected versionversion=2b3d047870120bcd46d7cc257d19ff49328fd585 <c4b6c1781f6cc4e2283120ac8d873864b8056f21
  6. Affected versionversion=5.17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2b3d047870120bcd46d7cc257d19ff49328fd585 <156bb2c569cd869583c593d27a5bd69e7b2a4264; version=2b3d047870120bcd46d7cc257d19ff49328fd585 <4387cef540f36c2c9297460758cc2438305a24a0; version=2b3d047870120bcd46d7cc257d19ff49328fd585 <6504dd27123966dc455494cb55217c04ca479121; version=2b3d047870120bcd46d7cc257d19ff49328fd585 <89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3; version=2b3d047870120bcd46d7cc257d19ff49328fd585 <c4b6c1781f6cc4e2283120ac8d873864b8056f21; version=5.17

Published CVSS scores

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

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-476NULL Pointer Dereference
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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