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-rw-r--r--kernel/events/core.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index e5ffe97d6166..9a01019ff7c8 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7133,6 +7133,14 @@ static int perf_event_set_bpf_prog(struct perf_event *event, u32 prog_fd)
return -EINVAL;
}
+ if (is_tracepoint) {
+ int off = trace_event_get_offsets(event->tp_event);
+
+ if (prog->aux->max_ctx_offset > off) {
+ bpf_prog_put(prog);
+ return -EACCES;
+ }
+ }
event->tp_event->prog = prog;
return 0;