From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 37576142E73 for ; Thu, 12 Jun 2025 07:14:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749712464; cv=none; b=XIiTZYx3qHZfQJXEhvGodA5AxctJnCe5UOI/YJT//jo5zle9pL17eoBJrWMUen28NK3q1CbsxBEv++pbH8s8xTQVUNrdEaGmLUzVgiFJBz7Ij2AKwDdN+oQlKtXs0jwY9/8BTSbqZzCxn8OhOZlcAOKM/Ul9N0vejsiedJFWF7Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749712464; c=relaxed/simple; bh=Pqxuqye5i13D3CMk5hsg5z77ObC4KM6Jikm4tsqg1Bk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=dNOHvrH1Ta0eTZzN+kK5//3vId+BcaH8TRMMF8Wx9cB72caEIVzIUUePNAxa+kDFg4O1+eUmwQO22swBshECvZz9JkCzRqo8fvFcG2XvptfzBksMeHNL63MaJQ+ADlJPTje4Yqdo2YZFcWDUxmwQ2DRD0C51nwWIIeoonuFSzg0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-8730ca8143eso173548139f.0 for ; Thu, 12 Jun 2025 00:14:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749712462; x=1750317262; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=JISNHND5oALJPkGfh/nVytdioAF1VcJaZ/6BpCKwmFU=; b=xQ/Y8lEYZVZFCVuXntDv9hWCMowA84CZHQhGLOLSNvSK7c9I/2cwnG76NBnk548agI I2X9RNwtlQNiX+9ZxJD/x4wVr9mQA9pzp6QkrFRQsFNyhuP4PXWJKVDozjNSwjL2KI2z RumCS13OdAaZv9OsIiheYpcfWoC4950UHu3spQuuDcjzE7CbfYN3A6jID1+lwR/UEVDn s+RusSmR25CqJ94lZzr5ce9eySCGrLgdAqTeROpU8wi19keyp7NIyPaGyj3+Z855Pqiw US9drqydFe8L+Eb9cmbJWzJNBhImGtpwhlsFNjVHrliZI0cm0UVsE3LdlfMPoRhvmz+y 89qw== X-Gm-Message-State: AOJu0YxAGHrj9V1/y2WGiSUxQd5AQsDBcycM29++yxHO6NqXOstvQxc+ 7Q6tmlmhNv4euPXgcCYFB0hZ0ySxJveFwgro9+0o9BKXhHqDgTH1Prys/TZ3lce3uhw9QjDzd8X 4OWyO4SHHuHFOycztLbvFqdvzyvx5FrRKGFpNy8zovBuGe9mvriaHRzVEZi8= X-Google-Smtp-Source: AGHT+IGtTUSYsQqQ6u8lvek8sitpRMiSNUg64JIpMOtJGKrb3gAx1cig9qdI/p3xkpE3rHWajSv7R7gtUvzFI+iV8DXlxf9VPj0e Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:4a11:0:b0:3dd:a0fc:1990 with SMTP id e9e14a558f8ab-3ddfadc4e2dmr24756515ab.3.1749712462309; Thu, 12 Jun 2025 00:14:22 -0700 (PDT) Date: Thu, 12 Jun 2025 00:14:22 -0700 In-Reply-To: <6828591c.a00a0220.398d88.0248.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <684a7e4e.050a0220.be214.028b.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [overlayfs?] WARNING in ovl_listxattr From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [overlayfs?] WARNING in ovl_listxattr Author: lizhi.xu@windriver.com #syz test diff --git a/fs/overlayfs/xattrs.c b/fs/overlayfs/xattrs.c index 88055deca936..69e17db853f5 100644 --- a/fs/overlayfs/xattrs.c +++ b/fs/overlayfs/xattrs.c @@ -122,6 +122,7 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) old_cred = ovl_override_creds(dentry->d_sb); res = vfs_listxattr(realdentry, list, size); ovl_revert_creds(old_cred); + printk("buf: %s, size: %lu, res: %ld, %s\n", list, size, res, __func__); if (res <= 0 || size == 0) return res; @@ -131,6 +132,7 @@ ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) /* filter out private xattrs */ for (s = list, len = res; len;) { size_t slen = strnlen(s, len) + 1; + printk("s: %s, len: %lu, slen: %lu, %s\n", s, len, slen, __func__); /* underlying fs providing us with an broken xattr list? */ if (WARN_ON(slen > len))