From 3420d86959401e5884627efdf3c2361e50b05eaa Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Mon, 16 Nov 2020 18:06:43 -0500
Subject: [PATCH] Round up aligned_alloc() allocations

this fixes an address sanitizer splat

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
---
 include/linux/vmalloc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index efcc1912..c674d9a2 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -16,6 +16,8 @@ static inline void *__vmalloc(unsigned long size, gfp_t gfp_mask)
 {
 	void *p;
 
+	size = round_up(size, PAGE_SIZE);
+
 	run_shrinkers();
 
 	p = aligned_alloc(PAGE_SIZE, size);