bpf: Fix crash due to out of bounds access into reg2btf_ids.

[linux-2.6-microblaze.git] / kernel / bpf / ringbuf.c

diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c
index 638d7fd..710ba9d 100644 (file)
--- a/kernel/bpf/ringbuf.c
+++ b/kernel/bpf/ringbuf.c
@@ -104,7 +104,7 @@ static struct bpf_ringbuf *bpf_ringbuf_area_alloc(size_t data_sz, int numa_node)
        }
 
        rb = vmap(pages, nr_meta_pages + 2 * nr_data_pages,
-                 VM_ALLOC | VM_USERMAP, PAGE_KERNEL);
+                 VM_MAP | VM_USERMAP, PAGE_KERNEL);
        if (rb) {
                kmemleak_not_leak(pages);
                rb->pages = pages;