diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 4a99370763319dd14d39c7547e4af930779dc38f..309ef5a64af5d03daa402749ea12fc12385ec4be 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -734,6 +734,9 @@ struct ring_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags) size = sizeof(struct ring_buffer); size += nr_pages * sizeof(void *); + if (order_base_2(size) >= MAX_ORDER) + goto fail; + rb = kzalloc(size, GFP_KERNEL); if (!rb) goto fail;