Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c10f0efe57728508d796ae4ba7abe4c14ec3d8ef before 13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e; affected 7e6556e9329bc484e9dcdab6e346d959267c0636 before 59c15b9cc453b74beb9f04c6c398717e73612dc3; affected 9b0513905e0598b9f8cfccab8e47497aed5d935d before 42b380f97d65e76e7b310facd525f730272daf57; affected 335dfe4bc6368e70e8c15419375cf609c4f85558 before 2ce8ece5a78da67834db7728edc801889a64f643; affected e42efbe9754da78eafe11f6bd3ca9c8a094a752a before 477469223b2b840f436ce204333de87cb17e5d93; affected 0550069cc25f513ce1f109c88f7c1f01d63297db before 457965c13f0837a289c9164b842d0860133f6274 |
| Linux / Linux | affected 6.1.165 before 6.1.167; affected 6.6.128 before 6.6.130; affected 6.12.75 before 6.12.77; affected 6.18.14 before 6.18.17; affected 6.19.4 before 6.19.7 |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e
- https://git.kernel.org/stable/c/59c15b9cc453b74beb9f04c6c398717e73612dc3
- https://git.kernel.org/stable/c/42b380f97d65e76e7b310facd525f730272daf57
- https://git.kernel.org/stable/c/2ce8ece5a78da67834db7728edc801889a64f643
- https://git.kernel.org/stable/c/477469223b2b840f436ce204333de87cb17e5d93
- https://git.kernel.org/stable/c/457965c13f0837a289c9164b842d0860133f6274