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CVE-2026-23309 PUBLISHED

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.

EPSS 0.02% · 6.5th percentile

Risk Scores

EPSS Score
0.02%
6.5th percentile

Affected Products

VendorProductVersions
LinuxLinuxc10f0efe57728508d796ae4ba7abe4c14ec3d8ef, 7e6556e9329bc484e9dcdab6e346d959267c0636, 9b0513905e0598b9f8cfccab8e47497aed5d935d
linuxlinux_kernel6.1.165, 6.6.128, 6.12.75

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