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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 55BCDEB64DC for ; Mon, 17 Jul 2023 21:07:03 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 22E97DEB; Mon, 17 Jul 2023 23:06:10 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 22E97DEB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1689628020; bh=HsgfPc/ndOkSCsXX6gVh5hF8IwrW7I/85s3oH5K7d0o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=eKk6O+0QxcIGlVjxQe5A32lCkfCPDZrSZD2+4EvS63cj2LqTZp236CKVyXMcyewKN rc5eMDNA34Rl3FliEuwox+0DyN7AVvvx3axCuT2v4cD3iqgjzQ866r9xc1ocI2pL2Q KYIuzM7kyARBE6lRTdZjnsRV07DHmYmhJ0+f//pA= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 1C76CF80544; Mon, 17 Jul 2023 23:05:38 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id C1F14F8047D; Mon, 17 Jul 2023 23:05:37 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 872E1F8047D; Mon, 17 Jul 2023 23:05:33 +0200 (CEST) Received: from mail-oo1-xc2e.google.com (mail-oo1-xc2e.google.com [IPv6:2607:f8b0:4864:20::c2e]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 2F976F800D2 for ; Mon, 17 Jul 2023 23:05:27 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 2F976F800D2 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20221208 header.b=mFzPuiGU Received: by mail-oo1-xc2e.google.com with SMTP id 006d021491bc7-56597d949b1so2723029eaf.1 for ; Mon, 17 Jul 2023 14:05:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1689627926; x=1692219926; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=awzkgsvZFBo842DWA8GT/abxr3wtZvlfdq0myNlPQ4k=; b=mFzPuiGUM3XUBeafgaWUcyhQG0QPZ4O9svf8FTOYItCo8R/TZ59+X/6HzsD1g/WYvy b1KXc/bEpADFYnFcxlzqDV7JkHpJD64k/G4lVHvHu3kRlffFJppqTljN5qcxQ/X+Ow46 jN8QK8uNYyHzkFwYEs272eWNzpHYoWjbzb3Nb8pX0MPRBq7F/F9tuWNlFPkNoRR+m19/ YqiszErwzKl6l5uWhrsGsS7QquDU5kCtJqY3oSvCHdL8p7RqeJgCkSzMZW9vAJTDIBZx QBQirr29HNXBPlF4mdiXzIdjtr597PNWLiJ7mhVK8UYR7YK9MFqnnxreNrsJtmqK0ZoT N15g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689627926; x=1692219926; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=awzkgsvZFBo842DWA8GT/abxr3wtZvlfdq0myNlPQ4k=; b=ZVlymW0PWd+FhD2431Htbv6mQ9P/CIYQJqIvZHuaqz6uByfmfBFTM4pOdYVj0wEgEC XcFIBI5UE4Lf888M2AOwviLY7tfpLCmqGbPnTgNoWNunHNZG4FcWDzc2Br2gytulBSNH afDSX9S9Ttn2yGFMVJh6J+0KEe4oLpt2730rxiGKAsFQNY6j135yyudWhxC+4sFE8J+M +/BeK7370HIi7rzSiASLDV6FRSSo7l4yLQHZ4Ya3iZl0ZnWcJMvSpX+ocUo7/KfJ/gSi oPBHco7kfwUCHk2TI5+WT3+hj3zqzBnRAfT+mdeW/OwcGQb54LjknkAPv5lwbrDxx5BC GMug== X-Gm-Message-State: ABy/qLbwimuZVbygf0lnzBEnfKntvJygUeb8IQCJCusVbgnfw4IVPQuH vS3Ggria9fvqigyx+CYe5qg= X-Google-Smtp-Source: APBJJlFKSOND1F33J/v+4OdmvuxGHksMnvG+758Ztby9qh3hCqyUqoXyGkwOLkpopxnFYkuBPAAUfA== X-Received: by 2002:a05:6808:1b24:b0:3a1:ee4b:b8ee with SMTP id bx36-20020a0568081b2400b003a1ee4bb8eemr14664284oib.53.1689627925732; Mon, 17 Jul 2023 14:05:25 -0700 (PDT) Received: from geday ([2804:7f2:8006:9fa1:c980:8323:c7fc:1b46]) by smtp.gmail.com with ESMTPSA id x9-20020a056808144900b0039ee1de4e6esm127677oiv.38.2023.07.17.14.05.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Jul 2023 14:05:25 -0700 (PDT) Date: Mon, 17 Jul 2023 18:05:15 -0300 From: Geraldo Nascimento To: Dmitry Vyukov Cc: Takashi Iwai , syzbot , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, perex@perex.cz, syzkaller-bugs@googlegroups.com, tiwai@suse.com, syzkaller Subject: Re: [syzbot] [alsa?] memory leak in snd_seq_create_port Message-ID: References: <00000000000098ed3a0600965f89@google.com> <87v8ekattg.wl-tiwai@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Message-ID-Hash: 35DMWDXV6ADY4DCNOUZJNNKB6GQ5R374 X-Message-ID-Hash: 35DMWDXV6ADY4DCNOUZJNNKB6GQ5R374 X-MailFrom: geraldogabriel@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Mon, Jul 17, 2023 at 09:02:07AM +0200, Dmitry Vyukov wrote: > > Hi Geraldo, > > What exactly is cryptic in the report? Is there anything that can be > done to make it less cryptic? Hi again, Dmitry. Perhaps also a bad choice of words. Cryptic borders on the undecipharable while esoteric is the more proper word here. Those kernel hackers with esoteric C and assembly skills like Takashi Iwai or you will quickly infer that a kfree() is missing in such and such scope. In my other message, I meant to say that such esoteric knowledge is barely possessed by a novice kernel hacker, and they end up adding noise to the lists specially if they are involved in the patch acceptance process, specially as author of the patch, which I'm neither in this case. Now, if somebody were to apply LLMs to the build and checker bots and actually get to a point where they were getting good patch propositions from the machine rather than a bunch of hallucinations, that would be quite the feat. It's only a faint dream right now, but you did specifically ask for the "vision" :) Thank you, Geraldo Nascimento