From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 EBF4433C7 for ; Thu, 18 Jan 2024 04:47:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705553227; cv=none; b=kvSirAk++qkNvdzW83Q2G9+jpK6yxYIC4ySXucpHRRJJTIWTuZV6KtpVBN3+BdGmSTKBn80tbre6gmmzf5SqlYwYDx2PH0HqKpFT3TUHhL3UeiFDdBsXmPH1Nu+EJskOf9+UryBxJnFBeN9KmEXjxL18ncWHJX5kG9NIYlYRyW8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705553227; c=relaxed/simple; bh=Q75w7nD4kKcQBLdkK7LKAfVYbQplE7hzg5drjIwxGA0=; h=Received:X-Google-DKIM-Signature:X-Gm-Message-State: X-Google-Smtp-Source:MIME-Version:X-Received:Date:In-Reply-To: X-Google-Appengine-App-Id:X-Google-Appengine-App-Id-Alias: Message-ID:Subject:From:To:Content-Type; b=gQhFMa5ajfSHVCo1Q1BhcN6xUcmrE8rb4m4/bpgfJKbOrG92xaLLF41piys1jW6m3jTlE0tcKyGPLQSfqyUwB1jg2OTkcQ/CUWF/+HvXWZyRXpf4S70Px+tJYT2Gew6Ykos/NmYUFazDg90LXGgPC763egyMtU56zDDoy0ddsb4= 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=209.85.166.200 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-il1-f200.google.com with SMTP id e9e14a558f8ab-360a49993dfso79927885ab.3 for ; Wed, 17 Jan 2024 20:47:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705553225; x=1706158025; 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=ymoVARgRYWdIms/xo+octeg0XEPb8BZOwxsFtI4Grg4=; b=v6VVSqE6ztbYikOee1C6bFDBRfLMxllQP/ZNr0WGTou28Ty9nIlE6VgwEgl12nnprC I4EtH6LAMb50twKAr8kWgGnH4O6eIRKgn5Q9Yo/mXNpEZClrDWPncaqhpzyw9Si7sUh4 rWNvXvOWXVRiXTobxEG//cTO+O3Qaqbp1mPDp7nKqcYWpsefx6lLGflqqrJGZcMvpE6o zKkiLzyHsUl8LMMYP1lDd6y3vfuUc+yWGEpx7Aqd62EhRPiB6UvQ5a5XRlyHSwlHYNof GmwfDHzCYkLww4Skrt2bizQCCDHlMmVkmoAAQ7KGXF1pkdnEL+u1fEcG16V1f54tt8mD qB7g== X-Gm-Message-State: AOJu0Yy7Cu2q60+S1GiULV3IesNv77DUq8BKdjrBa8vmpgS7yb+odqjn ZBAKAlAw44S8D77q9Yl/jf+1j+K0kg6qD5IInX+F+Oys++9Wgi45sZOBiNtSfAZCf9y60is1eZq WWW8sfmlIjtkBTueVO+WMc4jea9wGRqQjDfKem4DuQC/O/XpreU2n818= X-Google-Smtp-Source: AGHT+IEH+woEwYdSe7g/Y57PZBA4qKJtYRxtNII4slp4OUaaC4bIxOSd7vASigIipTBSUTWvRb/insfrES6MdicNCz7xcfOqIgQP Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d8a:b0:361:9bd6:9dab with SMTP id h10-20020a056e021d8a00b003619bd69dabmr46284ila.1.1705553225166; Wed, 17 Jan 2024 20:47:05 -0800 (PST) Date: Wed, 17 Jan 2024 20:47:05 -0800 In-Reply-To: <20240118043359.1367-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000021b4fb060f310e4c@google.com> Subject: Re: [syzbot] [net?] KASAN: use-after-free Read in __skb_flow_dissect (3) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot tried to test the proposed patch but the build/boot failed: net/core/filter.c:2162:23: error: invalid operands to binary - (have 'sk_buff_data_t' {aka 'unsigned int'} and 'unsigned char *') Tested on: commit: 296455ad Merge tag 'char-misc-6.8-rc1' of git://git.ke.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master kernel config: https://syzkaller.appspot.com/x/.config?x=da1c95d4e55dda83 dashboard link: https://syzkaller.appspot.com/bug?extid=bfde3bef047a81b8fde6 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=1049e9dde80000