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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD647C433EF for ; Thu, 10 Feb 2022 06:08:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232479AbiBJGIG (ORCPT ); Thu, 10 Feb 2022 01:08:06 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:53230 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230184AbiBJGIF (ORCPT ); Thu, 10 Feb 2022 01:08:05 -0500 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBCAC1A5 for ; Wed, 9 Feb 2022 22:08:07 -0800 (PST) Received: by mail-il1-f197.google.com with SMTP id m3-20020a056e02158300b002b6e3d1f97cso3259444ilu.19 for ; Wed, 09 Feb 2022 22:08:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=hxxPMFG7Sy5R8OTw+DHD+CiI9MhDe02HH/eavpKJlVI=; b=a4KZxX35uM+iRT2VjhW/sTIRIysDEwYQQc90PbyZHWevTLmr4G6+ZJMLAmhpotTRdd L/vYuICg+m/jlvDy//ngzhRmJqzaLZTPg+RGxs5BGQEduZut5LcUPb1DHZhqBZ2Z8jsj CuI5frZCMyJSVUIEo9Is6OJ59R5HjBEpKawsKe04ISI2qKLh7yUJlcLpRXlsuzRvFLD6 IjiTRePqxZBvW2r6lOFUwHrbhkSumuqs15Bx5qgyhJgI7HGKNUmcO491DaAeZ68eTBhM 0tPPSTAXABiUeVOxhkMNHbGy31poA1QDGxPQnbBJ2b5HHuyX7x+n7ljnrFS8ZKeR24jK +SlQ== X-Gm-Message-State: AOAM533ju35fy/TOOtBDxiDURgxaeQ8hMLYedPWvJRvNmwa0pU/EiXYw FsDGCmjsJgovXdi8D6bs7maPPfGEHYGwArIIeGiTB+l+uG6R X-Google-Smtp-Source: ABdhPJxoAleQUKXdKQfyFJ/lU/DvKG+eN88p4ZFdGI/Tl2jq2ibPHrnZmPgShLp0DuHR0xD1pBw8UCAuxjN2bbrZc03Lii2YDBgU MIME-Version: 1.0 X-Received: by 2002:a05:6602:2cd2:: with SMTP id j18mr3118329iow.92.1644473287137; Wed, 09 Feb 2022 22:08:07 -0800 (PST) Date: Wed, 09 Feb 2022 22:08:07 -0800 In-Reply-To: <000000000000a3571605d27817b5@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001f60ef05d7a3c6ad@google.com> Subject: Re: [syzbot] WARNING: kmalloc bug in xdp_umem_create (2) From: syzbot To: akpm@linux-foundation.org, andrii@kernel.org, ast@kernel.org, bjorn.topel@gmail.com, bjorn.topel@intel.com, bjorn@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, fgheet255t@gmail.com, hawk@kernel.org, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, magnus.karlsson@intel.com, mudongliangabcd@gmail.com, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, w@1wt.eu, 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 7661809d493b426e979f39ab512e3adf41fbcc69 Author: Linus Torvalds Date: Wed Jul 14 16:45:49 2021 +0000 mm: don't allow oversized kvmalloc() calls bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13bc74c2700000 start commit: f4bc5bbb5fef Merge tag 'nfsd-5.17-2' of git://git.kernel.o.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=107c74c2700000 console output: https://syzkaller.appspot.com/x/log.txt?x=17bc74c2700000 kernel config: https://syzkaller.appspot.com/x/.config?x=5707221760c00a20 dashboard link: https://syzkaller.appspot.com/bug?extid=11421fbbff99b989670e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12e514a4700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15fcdf8a700000 Reported-by: syzbot+11421fbbff99b989670e@syzkaller.appspotmail.com Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls") For information about bisection process see: https://goo.gl/tpsmEJ#bisection