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Message-ID: <tencent_7437344BBA742F76EB67C63D0F362897D209@qq.com>
Date: Tue, 30 Apr 2024 13:34:02 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+eaba5abe296837a640c0@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ext4?] KMSAN: uninit-value in ext4_inlinedir_to_tree
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;
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