From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) (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 64D0B3EFFA8 for ; Mon, 14 Sep 2026 09:21:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789377668; cv=none; b=bsZGzCrCF7MA6jbsSFaI0QYGr9bdvlF/iLkOmGgQanF7p9YZRobffkU2dmSTzBbrpRO3k73DXB+FQOjpMx3d8KKMEPWoeFJttSXN7LUIzP3HkCV6XNo4Up6wWowKSfZlEWRRzeD/Za3QCDk439D3IQCiDG4CU0qXnIb00UXJBSE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789377668; c=relaxed/simple; bh=r1CAfmiU8q5/a19Jw++myWXMIwnZ/J4pXbC2ndm0wT4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=UgWjjxaJgLhZD7F+hVit4FIW0NyStMfAxmHh48LO+X8K3qvKvdT8KdAHy+i0vNVYQS+VaFk5YmcapH+6OogOO4U6XsFk9YbjSfPxzzfO/+RQW9RkONFFJYgeCLqPMldkI3nuQP/GD5FVfZz6GXGX9f0LIqSh97y92CENrDdgpgM= 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=209.85.167.197 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-oi1-f197.google.com with SMTP id 5614622812f47-4ab4dd46ddeso1900091b6e.3 for ; Mon, 14 Sep 2026 02:21:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1789377666; x=1789982466; h=content-type:cc:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=9lU1rc0z5bYZQILrctaf7TJuUIeJVSXSTV5cagZ8GKo=; b=W1j2P+cNUyZiRfTkDAGWagqGKc9SgxgEIbZqtawT4VV6xE3gFHDrs1bJxdqPjlfhFC 2zyqzh8zIPnho550sF1Ysi4mczTWRQgyjLZvfojoKkpl1dlYLzInqZ9ewItUj2kNIP5a aH/dIMlq0xHoostLvPh5D/zdRqWivVuMsG8HYO5CpXtU1eP11H9WPsfLRiFkQJL5YBsY hLIdu5UzgtczfSThJG9u1cwe8Vbrwz9fboKmPvWatUTbe7XqB6T+KyRONzk58cdW/an/ yB12UACPJw8flKJfzDEzgivLSO4nv4B3fZYh0TP4sCGPzU4Fd5L+haAgdbvHy3bD/ZJT 40Ww== X-Forwarded-Encrypted: i=1; AKwUvBxVudPsZwguNi451aPmSQgkfFazThbP3cte5nLuS9fmoeld/huCWcUiQ71uCLm7e+D/8JJIgLB7Igzjyns=@vger.kernel.org X-Gm-Message-State: AFuF++lpNB6CfdSe3gh6tfYsdyFuh6CS5xn9jo69uJyDgUXVnNEUbvkB y1fvF6kZIW2XrmWR37NKvmEJuo+66S9rXX8m1G808UaPnaWzfymSd0Mm2kpEae57JnZomh5kOaz MwoGnU9UQQO2UevaTIKqXB5UBTv8MEmRVqERzBx8j9W0F/jCS/czaY2/Pli8= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:178c:b0:4b9:e5fa:8a12 with SMTP id 5614622812f47-4c7b539de2amr1053141b6e.23.1789377666302; Mon, 14 Sep 2026 02:21:06 -0700 (PDT) Date: Mon, 14 Sep 2026 02:21:06 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6aa7bc82.f81106d8.2ab401.0049.GAE@google.com> Subject: Re: [syzbot] [fs?] general protection fault in configfs_depend_item_unlocked From: syzbot To: pavankumaryalagada@gmail.com Cc: pavankumaryalagada@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git cba2348ab114 This crash does not have a reproducer. I cannot test it. > > diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c > index eda80c2a2d38..301a64f41887 100644 > --- a/fs/configfs/dir.c > +++ b/fs/configfs/dir.c > @@ -1244,6 +1244,9 @@ int configfs_depend_item_unlocked(struct configfs_subsystem *caller_subsys, > return -EINVAL; > > parent = target->ci_group; > + if (!parent) > + return -ENOENT; > + > /* > * This may happen when someone is trying to depend root > * directory of some subsystem > >