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[2620:137:e000::1:20]) by mx.google.com with ESMTP id ik15-20020a170902ab0f00b001b874c5f7a8si404207plb.653.2023.07.17.14.18.23; Mon, 17 Jul 2023 14:18:36 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=mFzPuiGU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229926AbjGQVF2 (ORCPT + 99 others); Mon, 17 Jul 2023 17:05:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229541AbjGQVF1 (ORCPT ); Mon, 17 Jul 2023 17:05:27 -0400 Received: from mail-oi1-x22e.google.com (mail-oi1-x22e.google.com [IPv6:2607:f8b0:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F636118 for ; Mon, 17 Jul 2023 14:05:26 -0700 (PDT) Received: by mail-oi1-x22e.google.com with SMTP id 5614622812f47-3a412653335so3025122b6e.1 for ; Mon, 17 Jul 2023 14:05:26 -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=NJ29tlObsBAd5EzG64+UkSzOPbjdFWKsL93+MsbkQFKYSQK4EmBaHB6ku+AhgcO1wi bVDrfjqIJDjJfNbdCLUvdNvQO4CQwUp2Fo3Lk7a0heBGNXKEt8QtnAz3PncN9jeqBvnJ bMhBKVlqplTHgy1R2bWOJZdc8drg/3vSrWnonatpqwwvbHMmYsK4UUrawLVawihRt+qy ZK7YF53pUPqLChCHOliNSSNp1fy3giYS6Q65TK+GRMISjzT2VCPWnfC5TtPxzHqz7po/ 305qBl3A+ynX5G0yIBKPXlhAL7K0OhhGHXqSQjl+dRflob44LBdYHEE3y5v3A4m+yBBo Serg== X-Gm-Message-State: ABy/qLbojb3nPxa3YMJNP7SXByNxTsVKGADWBRucWM0lL0UZY34+T+Ir qFq2xSwvmHQenOKazuKm9uAUHP9QpPMdNg== 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: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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