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 4410AC433F5 for ; Mon, 10 Oct 2022 11:55:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232290AbiJJLz1 (ORCPT ); Mon, 10 Oct 2022 07:55:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232340AbiJJLyw (ORCPT ); Mon, 10 Oct 2022 07:54:52 -0400 Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77AB16431; Mon, 10 Oct 2022 04:54:44 -0700 (PDT) Received: by mail-wm1-x335.google.com with SMTP id iv17so6703545wmb.4; Mon, 10 Oct 2022 04:54:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=loHfl9E8ZeXupW1T+/lYVBoYujd6PO2i0X9CyIK6EyM=; b=e7woRVqKx5F7x/9gUuOBMzyOU2OuB1HCt3qfqTB9+TLoJXel6YUzFEnGnHFTIjzu+3 gnnDSmDNGAd1y+w4D7MmFB+cLUnndmh4Lk2f2UYI5qoN8l+ML2NUxib6cDTTi7J8Wl5c Bp2Z++Rrq20VPapVmZ3YztFhndqdYQKU9Hpi5SI8iiE8UC4uYHenmzO8MIBXnJJM1R+T w9y9uvz1R76LpYZMm2spvl86WzzJChvJ65UojcD/oxOFdiaEwxhwwuQBeGGn3pOqphqx +WgTvs5ByoiBFqeuGDV87hkWl8mTXL2EO8le8FR9+/GEw9Uy4b+8TgdHC4E9GvH3ltDp FcoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=loHfl9E8ZeXupW1T+/lYVBoYujd6PO2i0X9CyIK6EyM=; b=DTy+XFsTKgdL0hLH0HRw+MRqkRkE99nBorjbArooHQCZbrEaheKasjGlLfLiFfoZsa i9sGBUEgLXbFifX+livJ6GMNi0qAGjxdWVGpTNJaZ8S9xU+U6RTD5CDeZlx+J8djbHEj VEU9avrk+O0qvj1reDDE7s9JB81dRPAhO8CemdL5bCEdRWrxE3tRvZjY1ncKMHmfDXQ2 Rz6J+ek3P/8O9vvlT4HGQwT4GgvzEYrbHeCYcdvXmzBfHnROCI8MZd6ZjYFmEjGni7Rv y/T+ghntXLBnh00ODywUaa2JDTV5vB54pCzrxixsv/4D4fnU93rHwbIUqwPnNbGT1FAh jOFA== X-Gm-Message-State: ACrzQf07cNYLQPIKD+c1v8fgkPypvbJdmmREJVYvqGYGA2hMGplav9PV eJFibNmUVDom5yOTEjh4ppE= X-Google-Smtp-Source: AMsMyM4CNXwLBZz/T2XKUXCPmo11XQdzTp3znypehBUFYG44Gjzkxusl/uf2Ylz3Sj6usGmyeKBUQw== X-Received: by 2002:a7b:c048:0:b0:3b4:fb26:f0f3 with SMTP id u8-20020a7bc048000000b003b4fb26f0f3mr20258053wmc.115.1665402882702; Mon, 10 Oct 2022 04:54:42 -0700 (PDT) Received: from [192.168.8.100] (94.196.221.180.threembb.co.uk. [94.196.221.180]) by smtp.gmail.com with ESMTPSA id g20-20020a05600c4ed400b003b4ac05a8a4sm22691107wmq.27.2022.10.10.04.54.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Oct 2022 04:54:42 -0700 (PDT) Message-ID: Date: Mon, 10 Oct 2022 12:49:49 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.1 Subject: Re: [syzbot] KASAN: slab-out-of-bounds Read in io_uring_show_fdinfo To: syzbot , axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000009b01b805eaa8eda8@google.com> Content-Language: en-US From: Pavel Begunkov In-Reply-To: <0000000000009b01b805eaa8eda8@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 10/10/22 08:15, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a6afa4199d3d Merge tag 'mailbox-v6.1' of git://git.linaro... > git tree: upstream > console+strace: https://syzkaller.appspot.com/x/log.txt?x=10cfc3fa880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=e2021a61197ebe02 > dashboard link: https://syzkaller.appspot.com/bug?extid=e5198737e8a2d23d958c > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=108b448a880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13a0403a880000 #syz test: https://github.com/isilence/linux.git io_uring/fdinfo_fix -- Pavel Begunkov