From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out203-205-221-191.mail.qq.com (out203-205-221-191.mail.qq.com [203.205.221.191]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A27208C07 for ; Sat, 21 Sep 2024 02:40:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.205.221.191 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726886434; cv=none; b=OjPIb6eUE4wM8y063Tpd6DMKDvhUYuHnfdZzT6hWf3GP9kjl7yyQ060EeR9OZ2ZDa0L0QV3HsNuWFugrXp9CtwSOQ8tlR8GP9z1YoEgyzd0ectO/tXw347XQG7fG1oQyqoHEYU7j6UWkGjkmfhjnEB1zVTE5sti8B4FPl3k68oE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726886434; c=relaxed/simple; bh=F5Cc4Qnuaq4/+TFIiSCQCb2clyGJ26TQzJlfEiKKZWo=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=ht5ffLD8LRcODGNr4SVDNZG+skSnz7JmLPYlk3RfFv+3/bnWZ1If011TPLJXfdnB24gXjTWHLfDDW2PjJZaoMWchUPhyTSnX7DZTZe9FyKSjR7SzalYOVIfLuSQ2JNbJGStVwedeDYeQyg6u3EXHL0Y0vKx9rcd6urH+oZHMj5I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=Srb0XPSI; arc=none smtp.client-ip=203.205.221.191 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="Srb0XPSI" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1726886430; bh=0+nXvJ0cpAFTJs+fwZb26FfD211gL4HLCxWS5HqA8DM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Srb0XPSIkX8kHVIBngpyAdGIM8vyfnWREMyMy+VrZ0REMnD+DB/yL2YVWwJUIgeQd FjLhq1NsKjvwbi8RxujiVfDl4i6QlltlxQXaeVobw5uQNbYkJvIu+yTMf+nlcX5g06 ExCNZHGFueJU2e85TvlBYDtKdun6Tx+txYr+7nZE= Received: from pek-lxu-l1.wrs.com ([111.198.224.50]) by newxmesmtplogicsvrszc13-0.qq.com (NewEsmtp) with SMTP id A1B9CAEE; Sat, 21 Sep 2024 10:40:27 +0800 X-QQ-mid: xmsmtpt1726886427t223q0w76 Message-ID: X-QQ-XMAILINFO: Mdc3TkmnJyI/+lCY4jeTXxmHgKoCtwmy3yHPYaDt/h8VF5Ip8kmXhY2W5ngqm+ yvpDRP0B0VBwM7R1CPcV+HOrlcBhfufv/3PDblVwEXXLX5CAaXP6GIzaez8k3k42MbgWDaNSEIIO FZHAl33uiox60tTQINGZRJ5AtFss7Y96i7DCoUS6L2LCaU05pHAARBF+1MQ3RwLRgg8LlC9iJ3wz VqXqfm51FYeDMRVuHy5u3pZIQb2tfVodC/hmgi7goZ6FYPzRUgwuYMlDyAiEB6oP0yfLF5uZveY3 HGyiBU4ape+dABVxPygf6yey/81FGcU02jtilqCMmwTKFblCQTP3bM0AvxZbIhMu1KAolxa9rwAR YZvCS0K4M1YvoIkktLv2QxJWbIbQ2yvGTdIGF7MCZ6IqdAn0A81P+iDLahGf5IjPB8MtxO5gnedE kpumL/n0jJZaYxVDQsJEPXEin8nJOHy3lIzflGlfCQU3qMdZ09m/VWwh3+SWhFp0s8AF7BkXoCuV Cs91FO0j5C7V0VO5LOGv2Q7jMMh79qL1X+T2MDaYTpKlPDeu9YRlvbMSL59zSjPPEew7nVhRMYfW 7vGKWKMw4kz5aJ245SQDVY7PS6Ivt2ZYVu6XXI5kWbMp9ardLuNtLojwKPxiCi4vDFtwTLUE459d g/fiXpFMgCqQ8i1f9/iYmZHK4qn7ZKPB5heMRMtcVRPJmKGt548ub57Ehez8KtCanIDVfRxHimwP sWqfnb813MfDGNfc2gQ5CpN53elqhH0SkOlMPas+aIqXMI3YaSMsjYGUpMibVmbQSM1NUgSYgDHB o5N+0Tze2zG0y8ajvD6HM9loLwFFh5wLf2YQuU1Ino9Npr1EVF4fDQQtCnZkyYPHxi/EQcimyleE S0q+4Had6cKP8dg0/604ow82Xf7YXh2hU14ArYqYizmzcVvatsyfsdKyY8VtM2aRapifpxefiD X-QQ-XMRINFO: Mp0Kj//9VHAxr69bL5MkOOs= From: Edward Adam Davis To: syzbot+6c55f725d1bdc8c52058@syzkaller.appspotmail.com Cc: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [ocfs2?] KMSAN: uninit-value in from_kuid (2) Date: Sat, 21 Sep 2024 10:40:28 +0800 X-OQ-MSGID: <20240921024027.1240120-2-eadavis@qq.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <66ed92f2.050a0220.29194.005a.GAE@google.com> References: <66ed92f2.050a0220.29194.005a.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit use inode's uid and gid to replace attr #syz test diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index ccc57038a977..d4be183bf149 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1129,8 +1129,8 @@ int ocfs2_setattr(struct mnt_idmap *idmap, struct dentry *dentry, (unsigned long long)OCFS2_I(inode)->ip_blkno, dentry->d_name.len, dentry->d_name.name, attr->ia_valid, attr->ia_mode, - from_kuid(&init_user_ns, attr->ia_uid), - from_kgid(&init_user_ns, attr->ia_gid)); + from_kuid(&init_user_ns, inode->i_uid), + from_kgid(&init_user_ns, inode->i_gid)); /* ensuring we don't even attempt to truncate a symlink */ if (S_ISLNK(inode->i_mode))