diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2025-04-01 12:45:25 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-04-02 09:51:25 -0400 |
| commit | 2c9ee74a6d6166d0f31f00841cde16a2915fffcb (patch) | |
| tree | ccfb3582ff24516822997961f2d5f64ab03ceb02 /kernel | |
| parent | b81ff11c21af688fc8435aad1e5c1463beff8c2d (diff) | |
tracing: Free module_delta on freeing of persistent ring buffer
If a persistent ring buffer is created, a "module_delta" array is also
allocated to hold the module deltas of loaded modules that match modules
in the scratch area. If this buffer gets freed, the module_delta array is
not freed and causes a memory leak.
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250401124525.1f9ac02a@gandalf.local.home
Fixes: 35a380ddbc65 ("tracing: Show last module text symbols in the stacktrace")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 103b193875b3..de6d7f0e6206 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -9609,6 +9609,7 @@ static void free_trace_buffers(struct trace_array *tr) return; free_trace_buffer(&tr->array_buffer); + kfree(tr->module_delta); #ifdef CONFIG_TRACER_MAX_TRACE free_trace_buffer(&tr->max_buffer); |