Re: [syzbot] [hfs?] KMSAN: uninit-value in __hfs_ext_cache_extent (2)

[Qianqiang Liu]

#syz test

diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
index ef9498a6e88a..e66cb6e9f1fa 100644
--- a/fs/hfs/bfind.c
+++ b/fs/hfs/bfind.c
@@ -18,7 +18,7 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)
 
 	fd->tree = tree;
 	fd->bnode = NULL;
-	ptr = kmalloc(tree->max_key_len * 2 + 4, GFP_KERNEL);
+	ptr = kcalloc(tree->max_key_len * 2 + 4, 1, GFP_KERNEL);
 	if (!ptr)
 		return -ENOMEM;
 	fd->search_key = ptr;

-- 
Best,
Qianqiang Liu