diff --git a/fs/seq_file.c b/fs/seq_file.c
index 1600034..c19ecc1 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -29,6 +29,9 @@
 
 static void *seq_buf_alloc(unsigned long size)
 {
+	if (unlikely(size > MAX_RW_COUNT))
+		return NULL;
+
 	return kvmalloc(size, GFP_KERNEL_ACCOUNT);
 }