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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-23309 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Add NULL pointer check to trigger_data_free() If trigger_data_alloc() fails and returns NULL, event_hist_trigger_parse() jumps to the out_free error path. While kfree() safely handles a NULL pointer, trigger_data_free() does not. This causes a NULL pointer dereference in trigger_data_free() when evaluating data->cmd_ops->set_filter. Fix the problem by adding a NULL pointer check to trigger_data_free(). The problem was found by an experimental code review agent based on gemini-3.1-pro while reviewing backports into v6.18.y.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e kernel.org
https://git.kernel.org/stable/c/2ce8ece5a78da67834db7728edc801889a64f643 kernel.org
https://git.kernel.org/stable/c/42b380f97d65e76e7b310facd525f730272daf57 kernel.org
https://git.kernel.org/stable/c/457965c13f0837a289c9164b842d0860133f6274 kernel.org
https://git.kernel.org/stable/c/477469223b2b840f436ce204333de87cb17e5d93 kernel.org
https://git.kernel.org/stable/c/59c15b9cc453b74beb9f04c6c398717e73612dc3 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23309
NVD Published Date:
03/25/2026
NVD Last Modified:
03/25/2026
Source:
kernel.org