From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 0593B173336 for ; Wed, 3 Jul 2024 13:56:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720014964; cv=none; b=Yn5pJ+E/sIFPBn3v87ChR0wLWl+f2XFD3FJ9gzBmzA60+BkHGnN/Qb58763Exqqpo0GC/WCnhRV5D+DLI0xIekNjnFcMPKdIakxvHcevu3o9QA/NfX5fVHhBlDxqiWpTXfjDLOTVnS+yUtOKQNGcJUA8CHOyjl6wUzSEyL5ABDw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720014964; c=relaxed/simple; bh=ogDzCFWf02n0NhfQtrOVZBGui4ufGppKy2clFYNagHs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Ol+hGF+vKw9oN6jMATDqXO60gGgR6XS80gIPa/f2SKIVGoPbEtlQSb77eHkmaOuI04HAxfqZ2nk9fKkw1I152Cjqh//Pr+/SelAE294dOf5yWnwKK6UmaHzG/PUAgcEx4MLNmRey5wml5/Bv71FmLkLGWgGuvnZHKASTKgXcrwM= 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=209.85.166.69 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-f69.google.com with SMTP id ca18e2360f4ac-7f3c9b72aebso583933139f.3 for ; Wed, 03 Jul 2024 06:56:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720014962; x=1720619762; 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=hdq3tCuwQI7n1SBMovokzqtbZQ3gSeo6Hdp/WmawlMs=; b=FHZ3dTybCbLcsNEGQa0bKFYtAd3+98peA1EXHF6W6Rapdy+zyL+iVzeFCH6i00cOYO MBhJSUSwrNQpPKHksCMUuy/jXmcxTqHnhOyNoHeCkMBvv0Tue+zny0HEu/iZHnTGOAbi IVUTWEURyCHFsNNBIWhx4H0MOkeslP5gK9RUZmxAEXgs2+wn+/aJUX/rFR44q94LDJI+ ie+tcit9z7rZyhi1YcXW73x1LJz4rpGCqQplpVvWyIB3pRGtUZbSCVQ7HjxJD8/7QZIU OTvbnjsnluvbMfSxdPY3x8528++4dJkQg6m2Lk6LhIray2vf+ln3pAzVaCyJ7jug7L3C 4YxQ== X-Gm-Message-State: AOJu0YzxTvFMFNoBo/PaSwgjxs+BNFwexrVirV5MbZtI3pGXCxNbmOo4 1LjUMu/PHAOTCFfyH4EFdESH5SdXEoR1nJ5TaxQY9gG8XTXoD+6ZWOu86ytvvR6bfdf9+2F5BTx rc45EKFhXWPb5OjbZPAIy6mV3bbcWbs1mCZbxbPHtT0RbbzrIg/MTrH0= X-Google-Smtp-Source: AGHT+IGdPgzclsT1Avf35z8PIjaFfO2Dyj4IQIm1vY9gWUxMTSKN/6uAP2iE+61ZcC0RGxTQBsOJJz0kS8TRV6r6BO7bSgXSnF9f Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:860c:b0:4bd:4861:d7f8 with SMTP id 8926c6da1cb9f-4bd4861db3dmr267983173.4.1720014962233; Wed, 03 Jul 2024 06:56:02 -0700 (PDT) Date: Wed, 03 Jul 2024 06:56:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d527f8061c5830eb@google.com> Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Write in l2tp_session_delete From: syzbot To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tparkin@katalix.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot tried to test the proposed patch but the build/boot failed: net/l2tp/l2tp_core.c:1301:24: error: use of undeclared identifier 'pos' Tested on: commit: 185d7211 net: xilinx: axienet: Enable multicast by def.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git kernel config: https://syzkaller.appspot.com/x/.config?x=e78fc116033e0ab7 dashboard link: https://syzkaller.appspot.com/bug?extid=c041b4ce3a6dfd1e63e2 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=16c5a181980000