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From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+eaba5abe296837a640c0@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [ext4?] KMSAN: uninit-value in ext4_inlinedir_to_tree
Date: Tue, 30 Apr 2024 13:34:02 +0800	[thread overview]
Message-ID: <tencent_7437344BBA742F76EB67C63D0F362897D209@qq.com> (raw)
In-Reply-To: <000000000000440b0a06173e6ca8@google.com>

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;


  reply	other threads:[~2024-04-30  5:40 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-29 16:05 syzbot
2024-04-30  5:34 ` Edward Adam Davis [this message]
2024-04-30  7:35   ` syzbot
2024-04-30  7:13 ` [syzbot] " syzbot
2024-04-30 17:28 ` syzbot
     [not found] <CABtBSaYXM0jR-HovWtxiX+KWhmL7M0aDwo6w488igKgkrCOyJg@mail.gmail.com>
2024-04-30  8:47 ` [syzbot] [ext4?] " syzbot
     [not found] <CABtBSaZ-Qqb0ZB7CC1JMuO2pkT6YmRvibhb67x=QkOQMCdq8ow@mail.gmail.com>
2024-04-30 20:09 ` syzbot

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