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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 11749C47080 for ; Tue, 1 Jun 2021 15:43:31 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A873261396 for ; Tue, 1 Jun 2021 15:43:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A873261396 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linux-kernel-mentees-bounces@lists.linuxfoundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 6C4EF403F7; Tue, 1 Jun 2021 15:43:30 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id KfpWJHccpy0r; Tue, 1 Jun 2021 15:43:29 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTP id 6F535403F5; Tue, 1 Jun 2021 15:43:29 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 4C3BDC000E; Tue, 1 Jun 2021 15:43:29 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 69656C0001 for ; Tue, 1 Jun 2021 15:43:28 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 42C97403F5 for ; Tue, 1 Jun 2021 15:43:28 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2Zdhx1WenP7K for ; Tue, 1 Jun 2021 15:43:27 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp4.osuosl.org (Postfix) with ESMTPS id A0820403F7 for ; Tue, 1 Jun 2021 15:43:27 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8D52C61396; Tue, 1 Jun 2021 15:43:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1622562207; bh=tM/wfsfxndtVhkhHKz1txBAUiL8wNEiq2Ds4vqAjqG0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dnU6XhtjlmmmkmHa+XZ1bvZc2DU2Zx+40mD2doJ7PZNuWUmPtb91cL+KeWLg3aetb Sd30wI+nbaZHL61qMmjhSSdk/e97xYFySB44BpiroteRByr+IHobvRxdi8hikcKB5F qz6Z4fix57DBQIqtuQLMmBIvemy2D0SrHpDRlIpQ= Date: Tue, 1 Jun 2021 17:43:24 +0200 From: Greg KH To: Kurt Manucredo Subject: Re: [PATCH v2] bpf: core: fix shift-out-of-bounds in ___bpf_prog_run Message-ID: References: <60aec085.1c69fb81.972cc.0bfb@mx.google.com> <12537-32529-curtm@phaethon> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <12537-32529-curtm@phaethon> Cc: linux-kernel-mentees@lists.linuxfoundation.org X-BeenThere: linux-kernel-mentees@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-kernel-mentees-bounces@lists.linuxfoundation.org Sender: "Linux-kernel-mentees" On Tue, Jun 01, 2021 at 04:33:09PM +0200, Kurt Manucredo wrote: > Fix shift-out-of-bounds in ___bpf_prog_run(). How is this "fixed"? > > UBSAN: shift-out-of-bounds in kernel/bpf/core.c:1414:2 > shift exponent 248 is too large for 32-bit type 'unsigned int' What is this from? Any reason you didn't cc: the bpf maintainers and developers? > Reported-by: syzbot+bed360704c521841c85d@syzkaller.appspotmail.com Does this pass the syzbot testing? thanks, greg k-h _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees