Re: [syzbot] [ext4?] KMSAN: uninit-value in ext4_inlinedir_to_tree

Edward Adam Davis
2024-04-30T05:40:22Z

please test uv in ext4_inlinedir_to_tree

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 5e4f65c14dfb..3611952570a7 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1182,7 +1182,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
int ext4_htree_fill_tree(struct file *dir_file, __u32 start_hash,
__u32 start_minor_hash, __u32 *next_hash)
{
- struct dx_hash_info hinfo;
+ struct dx_hash_info hinfo = {};
struct ext4_dir_entry_2 *de;
struct dx_frame frames[EXT4_HTREE_LEVEL], *frame;
struct inode *dir;