CVE-2026-23309
tracing: Add NULL pointer check to trigger_data_free()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 25, 2026 |
| Last Updated | Apr 13, 2026 |
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Affected Versions
Linux / Linux
c10f0efe57728508d796ae4ba7abe4c14ec3d8ef < 13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e 7e6556e9329bc484e9dcdab6e346d959267c0636 < 59c15b9cc453b74beb9f04c6c398717e73612dc3 9b0513905e0598b9f8cfccab8e47497aed5d935d < 42b380f97d65e76e7b310facd525f730272daf57 335dfe4bc6368e70e8c15419375cf609c4f85558 < 2ce8ece5a78da67834db7728edc801889a64f643 e42efbe9754da78eafe11f6bd3ca9c8a094a752a < 477469223b2b840f436ce204333de87cb17e5d93 0550069cc25f513ce1f109c88f7c1f01d63297db < 457965c13f0837a289c9164b842d0860133f6274
Linux / Linux
6.1.165 < 6.1.167 6.6.128 < 6.6.130 6.12.75 < 6.12.77 6.18.14 < 6.18.17 6.19.4 < 6.19.7
References
git.kernel.org: https://git.kernel.org/stable/c/13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e git.kernel.org: https://git.kernel.org/stable/c/59c15b9cc453b74beb9f04c6c398717e73612dc3 git.kernel.org: https://git.kernel.org/stable/c/42b380f97d65e76e7b310facd525f730272daf57 git.kernel.org: https://git.kernel.org/stable/c/2ce8ece5a78da67834db7728edc801889a64f643 git.kernel.org: https://git.kernel.org/stable/c/477469223b2b840f436ce204333de87cb17e5d93 git.kernel.org: https://git.kernel.org/stable/c/457965c13f0837a289c9164b842d0860133f6274