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CVE-2026-23309

tracing: Add NULL pointer check to trigger_data_free()

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version c10f0efe57728508d796ae4ba7abe4c14ec3d8ef
Version < 13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e
Status affected
Version 7e6556e9329bc484e9dcdab6e346d959267c0636
Version < 59c15b9cc453b74beb9f04c6c398717e73612dc3
Status affected
Version 9b0513905e0598b9f8cfccab8e47497aed5d935d
Version < 42b380f97d65e76e7b310facd525f730272daf57
Status affected
Version 335dfe4bc6368e70e8c15419375cf609c4f85558
Version < 2ce8ece5a78da67834db7728edc801889a64f643
Status affected
Version e42efbe9754da78eafe11f6bd3ca9c8a094a752a
Version < 477469223b2b840f436ce204333de87cb17e5d93
Status affected
Version 0550069cc25f513ce1f109c88f7c1f01d63297db
Version < 457965c13f0837a289c9164b842d0860133f6274
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 6.1.165
Version < 6.1.167
Status affected
Version 6.6.128
Version < 6.6.130
Status affected
Version 6.12.75
Version < 6.12.77
Status affected
Version 6.18.14
Version < 6.18.17
Status affected
Version 6.19.4
Version < 6.19.7
Status affected
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.102
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
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