CVE-2026-74471
CVE CVE-2026-74471EUVD EUVD-2026-59664Published 2026-08-15T12:27:08.000ZLast changed 2026-08-19T16:37:20.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: tracing: Check return value of __register_event() in trace_module_add_events() trace_module_add_events() ignores the return value of __register_event() and unconditionally calls __add_event_to_tracers() for each event. If __register_event() fails (for example, if event_init() fails), the trace_event_call is not added to ftrace_events list, but __add_event_to_tracers() still creates a trace_event_file pointing to it. If module loading subsequently fails and module memory is freed, tracing state retains a stale trace_event_call pointer in trace_event_file, leading to a use-after-free when tracefs or tracing subsystem operations are later executed. Fix this by checking the return value of __register_event() and only calling __add_event_to_tracers() if event registration succeeded.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux ae63b31e4d0e2ec09c569306ea46f664508ef717 <9d6d79744f01eacaf3d5522f4fcd59939581abfd; ae63b31e4d0e2ec09c569306ea46f664508ef717 <ac8719969e6c3c54e939834df812bc41f25453cf; patch: 7.1.8; patch: 0; ae63b31e4d0e2ec09c569306ea46f664508ef717 <54b7a358f6399c1242d2fb7f4f96085af34baa5e; patch: 6.1.183; patch: 6.18.44; patch: 5.10.265; 3.10; patch: 5.15.216; patch: 7.2; ae63b31e4d0e2ec09c569306ea46f664508ef717 <cbb5ed3be9cae70e1c12b1991009b4e12bf4a4ca; ae63b31e4d0e2ec09c569306ea46f664508ef717 <3bf965a2827c44f03294107703e7ba53fbd0a69a; patch: 6.12.103; ae63b31e4d0e2ec09c569306ea46f664508ef717 <22f954f7a8afe975e85517aff41b35defe05144b; ae63b31e4d0e2ec09c569306ea46f664508ef717 <000765dcdc3edf128990762790543adc4b868f6c; patch: 6.6.151; ae63b31e4d0e2ec09c569306ea46f664508ef717 <d61ee2a27dfd5eb43ddc18af40168f5b9eb1cea5
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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