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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 B32C9C433FE for ; Sun, 5 Sep 2021 20:04:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E3EE60F92 for ; Sun, 5 Sep 2021 20:04:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238132AbhIEUFT (ORCPT ); Sun, 5 Sep 2021 16:05:19 -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 X-Google-Smtp-Source: ABdhPJw8uxsAVTc7y/O2Nho+1GgIvGWLtmslQzKpOBn86Tsfrhp/WIPdMKxCklB4s2cNvBUTeZJMFKunrHzUglETpZQX+qZo7Qz/ 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