From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC417C433E0 for ; Thu, 21 Jan 2021 07:16:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EEB323788 for ; Thu, 21 Jan 2021 07:16:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726324AbhAUHQA (ORCPT ); Thu, 21 Jan 2021 02:16:00 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:47752 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726411AbhAUHOw (ORCPT ); Thu, 21 Jan 2021 02:14:52 -0500 Received: by mail-io1-f72.google.com with SMTP id t15so1829977ioi.14 for ; Wed, 20 Jan 2021 23:14:37 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=xo9ghie0HmQTCVFE6esqYP8OmOHWlrtIq/GxNkUwj5U=; b=or6tUxjkX+h+qHwaIUwyRwC4bJEm2fsRHkZyqNb6O5StyXkVPxjAKnDgjqnZWI2ZTx zwmpBHjvnSUS3z6DPiviUTTNJ7twzqwLOqRta7vWFH2YYo79QL/l0LP+OzSJVFrIH/Z6 RV7KXjieptYdAEsR63ucDPDGiw4a8IUCvhW9ympMZu4t6yrYAeCcPTQWVGDgdAaky3Xi dy68wJXQa0BEK/9KVYUZfg+psZGHv3cPZ55lYE7Fe/os7E+67+JIOTZDs4ij+64n2SMk GdcZnZNnQD0UZMoOE3lOiuk/VWt2S66viP+H8OD5GbK0PkPQ6R+Rln5YDiUQg6DdDv0l jCSA== X-Gm-Message-State: AOAM530NLfs5Ek2HVeRW3A06jnG4+OQU5YQ0PU6cBFeGIov4SD4sCp9c uvUeEP+x4/jFXmgSZ+auR0F4LdTtsiTJt9COomrxDX5v/AmO X-Google-Smtp-Source: ABdhPJzDLnqdQook2ZXZb3CUnas5dN6lgKAj1/BZrrphe7tOta2u+ZsyZ5hzlDABjpjcMMegIBs85pqV27tUbqqi6hEb5rGPe9sv MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1985:: with SMTP id g5mr10839151ilf.257.1611213251877; Wed, 20 Jan 2021 23:14:11 -0800 (PST) Date: Wed, 20 Jan 2021 23:14:11 -0800 In-Reply-To: <000000000000c8dd4a05b828d04c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000891f4605b963d113@google.com> Subject: Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run7 From: syzbot To: andrii@kernel.org, andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, rostedt@goodmis.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, xdp-newbies@vger.kernel.org, yhs@fb.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org syzbot has bisected this issue to: commit 8b401f9ed2441ad9e219953927a842d24ed051fc Author: Yonghong Song Date: Thu May 23 21:47:45 2019 +0000 bpf: implement bpf_send_signal() helper bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=123408e7500000 start commit: 7d68e382 bpf: Permit size-0 datasec git tree: bpf-next final oops: https://syzkaller.appspot.com/x/report.txt?x=113408e7500000 console output: https://syzkaller.appspot.com/x/log.txt?x=163408e7500000 kernel config: https://syzkaller.appspot.com/x/.config?x=e0c7843b8af99dff dashboard link: https://syzkaller.appspot.com/bug?extid=fad5d91c7158ce568634 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1224daa4d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13dfabd0d00000 Reported-by: syzbot+fad5d91c7158ce568634@syzkaller.appspotmail.com Fixes: 8b401f9ed244 ("bpf: implement bpf_send_signal() helper") For information about bisection process see: https://goo.gl/tpsmEJ#bisection