From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f71.google.com (mail-oo1-f71.google.com [209.85.161.71]) (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 13B8B393DEB for ; Mon, 14 Sep 2026 07:10:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789369808; cv=none; b=NGgSsIYSKNTqDX9Gu2Ll2ViAvz3R8B+J82lT/x2mZHGomM5udJ5mOKijU2ZTrItCI5LVz1u8iL0cONaDxQy8FpzHPUev36gdTpPCSK5vlsfsXF8gYLU0+ZC1+BJusEGZcyW1Sm1tP08PFuv5K45M1icu4kBClDAki3+a2gyDZeo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789369808; c=relaxed/simple; bh=StZnvQJiw/jGEgswuyS0WcG0iFbaDEbWxFKIv2maTt4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=peNRS8mX4/Xhh5nqDv/NhstCYLaBcsQmJ8YVYu86GNR2lTgE3BTLoCh7uMijsdz5xcc6EpS6Zj4xWT/3H3cIPRRAuex82Rc42dSGTmq6tHa2zDIyC4XJYYpA1A1RvCdQdh+ni8s/lekgXVAQsiGRojrK6KjchJFZgyD1dDSYM+0= 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=209.85.161.71 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-oo1-f71.google.com with SMTP id 006d021491bc7-6b36cf0d9d3so3199582eaf.1 for ; Mon, 14 Sep 2026 00:10:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1789369806; x=1789974606; h=content-type: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=bSwwMzrMMe3qDo0FnunxYy3hrhaeFsQX/OYG3KwwEfo=; b=N16uZjqI9Vk+aCXOHpZFYlhpv2p2Th1Ad5luleXH/F9dlgDW9uJbC7qavKmbQoBm1S mIY/bnjBHvxbWfP1GM5XbQN4lHcUKllsct/z8Kko3dk/sVGClZfVQm1KelC4DTId2mau d9FbkB485ybVewnWWSsTiOG+fGEBLgKfe9zCoNoiWurEZW02kySr7Z2dzxwk+JHgJlDU 1ZEfmD4bTUlgaVm4Y06a67WXPADoMFhLzqIJ8QTZ7fgPqev2EjQ3H0QDzIS0JN/iRSI1 Lh+MLcA97tkgdFZfrS9fTCB6QTCQwz3RZzjwITeht6njOE9wI8JnY24gVINBA4glKlo1 WNYA== X-Gm-Message-State: AFuF++mpkzuVcD45fsVI7ZR4Ep85MuTMbI9/GbuVRnqwHe0juoiKpXtb g1zBxXiL7/UlWZemt1PEEaaUIsny02rIMhDcJIV68SBqKl2+7q3XhcteEdX8v2wy/dGyg/7blw9 X6PgARXUB7yy38zT0ES8P1UB9imOQHBHFO0SGuvIZNrOAUGS2GI6vDkQqs/8= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:4b96:b0:6c1:fd93:5295 with SMTP id 006d021491bc7-6c5412661demr1173715eaf.21.1789369805989; Mon, 14 Sep 2026 00:10:05 -0700 (PDT) Date: Mon, 14 Sep 2026 00:10:05 -0700 In-Reply-To: <6aa60ec9.f81106d8.2ab401.0032.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6aa79dcd.f81106d8.2ab401.0046.GAE@google.com> Subject: Forwarded: [PATCH] configfs: unhash dentry before dropping the item 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: [PATCH] configfs: unhash dentry before dropping the item Author: jchuang26@m.fudan.edu.cn #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master Reported-by: syzbot+a079f084653164a652d1@syzkaller.appspotmail.com diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index 53fbdbbe8..3c5f7c80b 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -1410,9 +1410,12 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr, return BATADV_NO_DUP; orig_ifinfo = batadv_orig_ifinfo_new(orig_node, if_outgoing); - if (WARN_ON(!orig_ifinfo)) { + /* batadv_orig_ifinfo_new() can fail when the memory allocation fails. + * This is not a bug, so don't warn and treat the OGM as non-duplicate. + */ + if (!orig_ifinfo) { batadv_orig_node_put(orig_node); - return 0; + return BATADV_NO_DUP; } spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);