Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before 3bf965a2827c44f03294107703e7ba53fbd0a69a; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before 9d6d79744f01eacaf3d5522f4fcd59939581abfd; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before 54b7a358f6399c1242d2fb7f4f96085af34baa5e; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before d61ee2a27dfd5eb43ddc18af40168f5b9eb1cea5; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before 22f954f7a8afe975e85517aff41b35defe05144b; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before cbb5ed3be9cae70e1c12b1991009b4e12bf4a4ca; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before 000765dcdc3edf128990762790543adc4b868f6c; affected ae63b31e4d0e2ec09c569306ea46f664508ef717 before ac8719969e6c3c54e939834df812bc41f25453cf |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3bf965a2827c44f03294107703e7ba53fbd0a69a
- https://git.kernel.org/stable/c/9d6d79744f01eacaf3d5522f4fcd59939581abfd
- https://git.kernel.org/stable/c/54b7a358f6399c1242d2fb7f4f96085af34baa5e
- https://git.kernel.org/stable/c/d61ee2a27dfd5eb43ddc18af40168f5b9eb1cea5
- https://git.kernel.org/stable/c/22f954f7a8afe975e85517aff41b35defe05144b
- https://git.kernel.org/stable/c/cbb5ed3be9cae70e1c12b1991009b4e12bf4a4ca
- https://git.kernel.org/stable/c/000765dcdc3edf128990762790543adc4b868f6c
- https://git.kernel.org/stable/c/ac8719969e6c3c54e939834df812bc41f25453cf
ADP enrichment
No English description supplied.
No references supplied.