1 files changed, 10 insertions, 1 deletions

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 1d1f030e2f1e..ef5e7cc686e3 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1950,7 +1950,16 @@ static int __perf_event_enable(void *info)
         struct perf_cpu_context *cpuctx = __get_cpu_context(ctx);
         int err;
 
-        if (WARN_ON_ONCE(!ctx->is_active))
+        /*
+         * There's a time window between 'ctx->is_active' check
+         * in perf_event_enable function and this place having:
+         *   - IRQs on
+         *   - ctx->lock unlocked
+         *
+         * where the task could be killed and 'ctx' deactivated
+         * by perf_event_exit_task.
+         */
+        if (!ctx->is_active)
                 return -EINVAL;
 
         raw_spin_lock(&ctx->lock);