Re: [syzbot] KMSAN: uninit-value in hfs_free_fork

syzbot
2024-11-11T19:50:53Z

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Subject: KMSAN: uninit-value in hfs_free_fork
Author: gianf.trad@gmail.com

#syz test
diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
index ef9498a6e88a..c74d864bc29e 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 = kzalloc(tree->max_key_len * 2 + 4, GFP_KERNEL);
if (!ptr)
return -ENOMEM;
fd->search_key = ptr;