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[23.128.96.18]) by mx.google.com with ESMTP id c39si5414767jaf.12.2021.09.05.13.05.47; Sun, 05 Sep 2021 13:06:09 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233147AbhIEUFM (ORCPT + 99 others); Sun, 5 Sep 2021 16:05:12 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:33441 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231468AbhIEUFK (ORCPT ); Sun, 5 Sep 2021 16:05:10 -0400 Received: by mail-io1-f72.google.com with SMTP id g2-20020a6b7602000000b005be59530196so3741213iom.0 for ; Sun, 05 Sep 2021 13:04:07 -0700 (PDT) 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=u7MTmHe0EZ9aA9LzZAxZXm6GQj3ww9LG3NsEE4FMIzE=; b=VHFvdTP3wu7IAFh78tjZU2I8PKImRM/VzbtnnHTXtIr1hXq0vA+PNVsBdwEoI5NfgH oo7dhSN3wt+c03hlM4/FnJTNvkL6SGkvyDO7Ilgk7+AcASfpKpV9g68C8lg4Djh5Bkwd D89LUT0eFhsS5nJ90g5NEmTPUfonUlLDp/Xx3xyy+Sy56rFUUCDt9RAqq3T2TejNQV8w j8GHpta2pWAh4THdxNAPE3jWF4exCJC2u+fvBVh1o4UfRJfSFVBlPmOMCRKbKjbD+WDL 92C8ZNdVIOdE8PKybN0DiUkfxvorrZVjjYwLaA2T1IyzGmIxIDLQRKKl74MbRmkpKrBi fMRA== X-Gm-Message-State: AOAM532yPABEqJLjQ2EA/aMDRBIiYeQ52Ugx0gPciDJrhXxhQt/sHgL7 HS2X6lzfMUGGRwwAsiWtl+5QZ/rarBjjNrJCoL4bl3dFA/BZ MIME-Version: 1.0 X-Received: by 2002:a6b:7b4b:: with SMTP id m11mr7043393iop.165.1630872246693; Sun, 05 Sep 2021 13:04:06 -0700 (PDT) Date: Sun, 05 Sep 2021 13:04:06 -0700 In-Reply-To: <0000000000002c756105cb201ef1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f032a605cb450801@google.com> Subject: Re: [syzbot] WARNING: kmalloc bug in bpf_check From: syzbot To: akpm@linux-foundation.org, andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, clang-built-linux@googlegroups.com, daniel@iogearbox.net, davem@davemloft.net, eric.dumazet@gmail.com, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, nathan@kernel.org, ndesaulniers@google.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: linux-kernel@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=13136b83300000 start commit: a9c9a6f741cd Merge tag 'scsi-misc' of git://git.kernel.org.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=10936b83300000 console output: https://syzkaller.appspot.com/x/log.txt?x=17136b83300000 kernel config: https://syzkaller.appspot.com/x/.config?x=c84ed2c3f57ace dashboard link: https://syzkaller.appspot.com/bug?extid=f3e749d4c662818ae439 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11e4cdf5300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ef3b33300000 Reported-by: syzbot+f3e749d4c662818ae439@syzkaller.appspotmail.com Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls") For information about bisection process see: https://goo.gl/tpsmEJ#bisection