linux-kernel - Re: [syzbot] [gfs2?] KMSAN: uninit-value in inode_go

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Message-ID: <ZwFmiv0lqP02xPtq@fedora>
Date: Sun, 6 Oct 2024 00:17:14 +0800
From: Qianqiang Liu <qianqiang.liu@....com>
To: syzbot <syzbot+aa0730b0a42646eb1359@...kaller.appspotmail.com>
Cc: agruenba@...hat.com, gfs2@...ts.linux.dev, linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [gfs2?] KMSAN: uninit-value in inode_go_dump (5)

#syz test

diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 6678060ed4d2..d60d53810bc1 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1537,11 +1537,13 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
 	if (!ip)
 		return NULL;
 	ip->i_no_addr = 0;
+	ip->i_no_formal_ino = 0;
 	ip->i_flags = 0;
 	ip->i_gl = NULL;
 	gfs2_holder_mark_uninitialized(&ip->i_iopen_gh);
 	memset(&ip->i_res, 0, sizeof(ip->i_res));
 	RB_CLEAR_NODE(&ip->i_res.rs_node);
+	ip->i_diskflags = 0;
 	ip->i_rahead = 0;
 	return &ip->i_inode;
 }

-- 
Best,
Qianqiang Liu