Linux kernel trace event trigger_data_free Heap Buffer Overflow DoS

The vulnerability of the triggerdatafree function in the kernel/trace/traceeventstrigger.c module, which supports kernel tracing in Linux operating systems, is related to the pointer dereferencing. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-23309

In the Linux kernel, the following vulnerability has been resolved: tracing: Add NULL pointer check to triggerdatafree If triggerdataalloc fails and returns NULL, eventhisttriggerparse jumps to the outfree error path. While kfree safely handles a NULL pointer, triggerdatafree does not. This cause...

CVE-2026-23309: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tracing: Add NULL pointer check to triggerdatafree If triggerdataalloc fails and returns NULL, eventhisttriggerparse jumps to the outfree error path. While kfree safely handles a NULL pointer, triggerdatafree does not. This cause...