linux-kernel - Re: [syzbot] [fuse?] KMSAN: uninit-value in fuse_fileattr

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Message-Id: <20260206034631.1189468-1-wangqing7171@gmail.com>
Date: Fri,  6 Feb 2026 11:46:31 +0800
From: Qing Wang <wangqing7171@...il.com>
To: syzbot+7c31755f2cea07838b0c@...kaller.appspotmail.com
Cc: linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	miklos@...redi.hu,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [fuse?] KMSAN: uninit-value in fuse_fileattr_get

#syz test

diff --git a/fs/file_attr.c b/fs/file_attr.c
index 13cdb31a3e94..4f514e487e35 100644
--- a/fs/file_attr.c
+++ b/fs/file_attr.c
@@ -413,6 +413,7 @@ SYSCALL_DEFINE5(file_getattr, int, dfd, const char __user *, filename,
 			return error;
 	}
 
+	memset(&fa, 0, sizeof(struct file_kattr));
 	error = vfs_fileattr_get(filepath.dentry, &fa);
 	if (error == -ENOIOCTLCMD || error == -ENOTTY)
 		error = -EOPNOTSUPP;