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 0CFC74EB55 for ; Sat, 20 Jul 2024 09:15:03 +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=1721466905; cv=none; b=FWlYAb7RjSaybchvg998Cslg9sM9+yTU8tlAKOCDCL0sasgW5/G+UWHFfrKwGDpJzQ4E6APo9kRWqMat8TM6QfkklS2tJ+B4+jucksJ4YUIH2Bk5Hb2y2XEPaKOAPUaiewyMSPqI+oscdt4Q0SAUPuwJg++NWEM0K5dfxP0MA6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721466905; c=relaxed/simple; bh=ODLI+X9xS97FO4XT1UaElBARAbVdOL/w5b1NhR6HgOA=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=c1dryjmW0CkT2g22sMGkXM1MzPqhiWxOZ0EiInYaAKUXokpHyzKWFJbjT/nuQoLfi9ZWBtFR7ap4wqJZ8wH1mfAmQVm1NNQa81vjmR0Npcd5ADyoXgyHzeGHDUgPjfoDYEgqHM1duhPGIqkIbYvmRZ9aMEJj8lf51HqP11CBCcc= 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-7fc9fc043eeso410977639f.3 for ; Sat, 20 Jul 2024 02:15:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721466903; x=1722071703; 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=s/xW/bfcnBDYLDu6G0bKJTsPYwdeU3e7DSeAVPwwSKE=; b=wI5zTfIeYRLFlY1P7YGlB0I2vNE+KY4r+cQfT8W6vIO/yrJTppI6Dzm6YVENUqRhP0 Eom9xDOBDc26JJtPr+b4Y6gGdTFwTWidBDr5+fMUZDlSxnNhiTO2zHy/gxFEGgRjOOA1 R6/FbM9gVXfHdfq2cttsGI2PEj99jBtTyumYwHauxnpvPY2sT1coKZBQEdlyclUPoy4e 415XqdOrX+JbO0MsttkgZp85rCTt9j4U69ReaLvcSyusY3nx9IbnHrdlKXOOchrDpuot XF0RMsywNUDht/DY93msJmW7IYYm54le1naxJ+AtiC5FZsjWa7byUXnOafdxndTF2qIE HdyA== X-Forwarded-Encrypted: i=1; AJvYcCVplD3c8VVC7vI7XoXl8xgHBfQynj1NXDdspPSRbh/1nXImAPbca0vQ0U1XRAEtTKAyme7n1Wat6tmgdgwbTHlsmuO3e36rMQmfnM7p X-Gm-Message-State: AOJu0Yzd8tnvURjTK4Y3Bfma0jiSwlNmrUl/5k55anD4zZlFhKjCz94I eUYhMlisukEkxMpChNTxvOq6CJ9LfOGI+BomAU253gm3EITUZBpIWVXvU4K+pp3gA8TxF2degV6 kCWNlrrnqIBMoywvhXzyQxPeGe7FlqZ+sX6LTctwE4evmEUiDdb+5blk= X-Google-Smtp-Source: AGHT+IE/QzbDjURoyGylAbqTzkWRv3Z1WWdorDeizpZ2ulTCu+E5V2jt9Lj2vHun3OTt+jKz10+fNjIh2OqQhl0Y58S8XH5KA8L+ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:2114:b0:4c0:9380:a260 with SMTP id 8926c6da1cb9f-4c23ff457dbmr83224173.3.1721466903216; Sat, 20 Jul 2024 02:15:03 -0700 (PDT) Date: Sat, 20 Jul 2024 02:15:03 -0700 In-Reply-To: <000000000000943e1c061d92bdd6@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004257c7061daa3f20@google.com> Subject: Re: [syzbot] [bpf?] [net?] KASAN: slab-use-after-free Read in bq_xmit_all From: syzbot To: andrii@kernel.org, ast@kernel.org, bigeasy@linutronix.de, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, eddyz87@gmail.com, edumazet@google.com, haoluo@google.com, hawk@kernel.org, jasowang@redhat.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, netdev@vger.kernel.org, pabeni@redhat.com, sdf@fomichev.me, song@kernel.org, syzkaller-bugs@googlegroups.com, willemdebruijn.kernel@gmail.com, yonghong.song@linux.dev Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit fecef4cd42c689a200bdd39e6fffa71475904bc1 Author: Sebastian Andrzej Siewior Date: Thu Jul 4 14:48:15 2024 +0000 tun: Assign missing bpf_net_context. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ddc995980000 start commit: 720261cfc732 Merge tag 'bcachefs-2024-07-18.2' of https://.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=11ddc995980000 console output: https://syzkaller.appspot.com/x/log.txt?x=16ddc995980000 kernel config: https://syzkaller.appspot.com/x/.config?x=93ca6cd6f392cb76 dashboard link: https://syzkaller.appspot.com/bug?extid=707d98c8649695eaf329 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1791eb49980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=118cf7a5980000 Reported-by: syzbot+707d98c8649695eaf329@syzkaller.appspotmail.com Fixes: fecef4cd42c6 ("tun: Assign missing bpf_net_context.") For information about bisection process see: https://goo.gl/tpsmEJ#bisection