From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) (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 879D730594F for ; Mon, 6 Jul 2026 11:21:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783336877; cv=none; b=S6QUuKo1Ldg1GW09MIKdQ7oFioZNHAn9EtqhRAXm0gNTVm/38m1duZrohY5rJKgEe4JhYNWux5QHyW5/iz4cfsmIhrkPipTsGrrll1ct1kajBnCk+HXX330GfTLzkt1A8s1RwhjG+ZXkrbG88ACjzCn80afdO2WFWcVZB9Pap/o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783336877; c=relaxed/simple; bh=enCzpsWbBnlpPsOKZpruoRiMjgpxQRTgH98dULuB/4I=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=cm4xWLA9TxvGVm6CioKfAO4Ib0fCexEdmqUs5is+6JUSRjzdIV2XVvTRLKfZz9U/6rZEQgickuYMk5CmRjnAmMy9x2tEVz97eqijFGdK4ESyYkjmuKxrAOiiGzyxXBz0MfAqobr8tCCqmb/ySskfk7dwJo1lsaQyetXIurqCvIM= 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=209.85.161.70 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-f70.google.com with SMTP id 006d021491bc7-6a1632e1c13so1440975eaf.0 for ; Mon, 06 Jul 2026 04:21:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783336875; x=1783941675; h=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; bh=pyBt9uG0ishQc15DCBFiH8mr8rxgVkg8uTiL9QvhFFQ=; b=UDA9HeXWfMAshGIUiCQqxbDPFFy7EHEoNVqozDTV6njfgAWOcSOOUTk7ZWHrGMlBT1 yAj/2u+gNhCs+f9XyewoWJxAM+utGOBTfq1JJzXYwVJ3FZAHDeqORupve1qrHB292D2K ilV08h2goAffNaLO90sthsrsUWvTqsZOjYnE4xJtEUnqiYCpiIP8HouwtShLb+pjEII0 n0CPZ2r6A/MY+7pyIWbjI8yJVMnzZxEs6bKvdaSrlmbCmYI3j19hWR8WySJb832dcadA r2Ql++93AzlCy5AC9AZ2vOzZJdUSFKuPFMXe+szMNDp8KKd5Csb9/q5xlN/u4bRzd/Vb XMXQ== X-Forwarded-Encrypted: i=1; AFNElJ+/cPWil2bQ9HzIVPraq24XZdiYcVG9GmW9wr/VdATeE27qzXZYAe7AwPU5WgsdHxINd/f7nNm2LpQbVoE=@vger.kernel.org X-Gm-Message-State: AOJu0YyCUSAxv/HMcJHS9Vfc6djFe2i9ce+cJIRtVzWQwbWca156v4Y1 sQBswLD5iakOXYBMmnxutvUqJ6Sdjty482Qb8h4JcymCZVpMF6TnaMlifNfy+/fEjlz7YShj9ux Eh8fFQiO28nbHj+1FECZfT0NIilhoSS6U5tOXwsA1hRoPg+PKl3ZMJIBsNuA= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:134a:b0:6a1:1be7:f292 with SMTP id 006d021491bc7-6a32f5f148dmr5492222eaf.50.1783336875637; Mon, 06 Jul 2026 04:21:15 -0700 (PDT) Date: Mon, 06 Jul 2026 04:21:15 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a4b8fab.b42ede87.8bd1.0023.GAE@google.com> Subject: Re: MM Test my fix double free From: syzbot To: malayarout91@gmail.com Cc: malayarout91@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > #syz test This crash does not have a reproducer. I cannot test it. > > diff --git a/drivers/net/ieee802154/mac802154_hwsim.c > b/drivers/net/ieee802154/mac802154_hwsim.c > index 6daa0f198b9f..466791939d57 100644 > --- a/drivers/net/ieee802154/mac802154_hwsim.c > +++ b/drivers/net/ieee802154/mac802154_hwsim.c > @@ -113,7 +113,8 @@ static int hwsim_update_pib(struct ieee802154_hw > *hw, u8 page, u8 channel, > pib->filt_level = filt_level; > > rcu_assign_pointer(phy->pib, pib); > - kfree_rcu(pib_old, rcu); > + if (pid_old) > + kfree_rcu(pib_old, rcu); > return 0; > }