diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 71cb0a2e7c38..57c213cff123 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3237,6 +3237,7 @@ static __cold int io_uring_mmap(struct file *file, struct vm_area_struct *vma)
 	struct io_ring_ctx *ctx = file->private_data;
 	size_t sz = vma->vm_end - vma->vm_start;
 	long offset = vma->vm_pgoff << PAGE_SHIFT;
+	unsigned int npages;
 	unsigned long pfn;
 	void *ptr;
 
@@ -3247,8 +3248,8 @@ static __cold int io_uring_mmap(struct file *file, struct vm_area_struct *vma)
 	switch (offset & IORING_OFF_MMAP_MASK) {
 	case IORING_OFF_SQ_RING:
 	case IORING_OFF_CQ_RING:
-		return io_uring_mmap_pages(ctx, vma, ctx->ring_pages,
-						ctx->n_ring_pages);
+		npages = min(ctx->n_ring_pages, (sz + PAGE_SIZE - 1) >> PAGE_SHIFT);
+		return io_uring_mmap_pages(ctx, vma, ctx->ring_pages, npages);
 	case IORING_OFF_SQES:
 		return io_uring_mmap_pages(ctx, vma, ctx->sqe_pages,
 						ctx->n_sqe_pages);