Received: by 2002:a89:48b:0:b0:1f5:f2ab:c469 with SMTP id a11csp148474lqd; Tue, 23 Apr 2024 19:01:13 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCUP4AnIxirebBiSfvIMdyYBM1WuV0SDDzlavT+5KcI4qr7o7P0o8+V11wdJl89XPxLNHlVL9yJWc7fkRaDmpsSuaH4KG1W1WEurwcumBw== X-Google-Smtp-Source: AGHT+IFHoMr636Hrj78BngMrDn92UkVPdV1r/9PS/icvbOC9yFJxe4yvvansRFbbdYDqwKRWwypf X-Received: by 2002:a05:6214:248:b0:6a0:932d:ce66 with SMTP id k8-20020a056214024800b006a0932dce66mr1055929qvt.15.1713924073249; Tue, 23 Apr 2024 19:01:13 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1713924073; cv=pass; d=google.com; s=arc-20160816; b=rHKoX9bFxfh5gDMxEkF8W2sX+bn7Z8wS9Pq0amtwJw6PUeV5wcjiXZmepXhkLMWVAr Udn4NvVO+0ApGqkrsQdYiyXhW/kdFnJSEzn5Y2B9AzVdiG5LR+pvkDTUeI8ErypqfkLa Wp9enQ5bYGKan0tDtyGvNdeSM7J9xI2l/Wf9UrzhVEhm/GIjaNLqQNIz16vZjghbm3Bl D03RyrsFWMYnLBR+zqg0lk5rxSL2XELNlgfa81menB5mKhdBUYQmDC1BnwuHaFu4t8dX I2i8iI+zKrNZj4JPSn+/pfHLsNz3HMpRw0E3TK8rdU6EaEbSAYBKyZ/ZYYULn+bgsWym Ahhw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=to:from:subject:message-id:in-reply-to:date:mime-version :list-unsubscribe:list-subscribe:list-id:precedence; bh=Ifim8rK+5Cn5AylRfbIwtbU4eq2GAjVjQaY82cuTstU=; fh=ktEoS/kZ+0y5kjeErBSJnJmgyArJLbRgVy9QMPnpmRo=; b=MiGn+fYYyaIhoCqlXP0oaghoQGxBKoc/IUUQh5WGDSwBfN5cG77i40Tdarl/KPLlEq CEdW/6f+3W9rLyAx9rb/TJ2NtjNZJCttbBai4zw9/CarR4ZB8Q3uDjeT7RfufkxmJv1U XqohdUfikevhn6GwTWiN34L0GEisZK7x0Dtdq+sQ/JHEWGyf8Q7JwQv/c9coyYF8VRgO x/JQ6aEa8nQE8wQObB3Q93wpEQAnOszFgSntXG60SGe2wg/s1wNtCb78Cu9A4bXY7K/S CgtX4kHGVBYOb8M5ZFTkstcJfuWGxWH+3f+hLn75pXFXsh/ro6ulYjzak9CJ/G+ckCpS 7E8Q==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; arc=pass (i=1 spf=pass spfdomain=m3kw2wvrgufz5godrsrytgd7.apphosting.bounces.google.com); spf=pass (google.com: domain of linux-kernel+bounces-156114-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-156114-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. [2604:1380:45d1:ec00::1]) by mx.google.com with ESMTPS id r2-20020ad45762000000b006a076b7b6ffsi8070546qvx.538.2024.04.23.19.01.13 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Apr 2024 19:01:13 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-156114-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=m3kw2wvrgufz5godrsrytgd7.apphosting.bounces.google.com); spf=pass (google.com: domain of linux-kernel+bounces-156114-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-156114-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 021D61C22D4F for ; Wed, 24 Apr 2024 02:01:13 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id AF5F91171C; Wed, 24 Apr 2024 02:01:05 +0000 (UTC) Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DDFE1BE58 for ; Wed, 24 Apr 2024 02:01:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713924065; cv=none; b=TBsrs3OmoDu3YUSTmt7uwKbafo9fYtojXH1YBRqE/LxAIuHshSJxpLIZGwnlr5QE4DAmmDsG3TuBoVWDxRKQnRE3kdM7rYPnlrgnW29U8VjZCUWfU752ec19oqSIRqNJANGip7GPsou8c6Feum3hB0lYnAakF38XkRa87XBlI6g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713924065; c=relaxed/simple; bh=TUP9FkX2lJl7zbsImkQch4ciYMMyBDiJtF6VqMtpXM0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=e31HwqgaVb6UhZATRDFBERXZMEOJjgMJs3KUerAQGcnS+VLzJZ6T+yoUynSewkKiu4JdyU2/+ESYV0/qyBPiaQyGu75JkXyGd+LVvmDRy3RCbhj/D3PQXag+LRR7wyRhoVMlDaqxxCl/2wG/PzlPD6OdSI1z16pwsdbDSv4lbYc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-36a1c2b7172so3693085ab.1 for ; Tue, 23 Apr 2024 19:01:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713924063; x=1714528863; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Ifim8rK+5Cn5AylRfbIwtbU4eq2GAjVjQaY82cuTstU=; b=W1aFxu0u/RzN/j1oG2NVjgWBudZRK9OmMYBdOAST8/MdVfj5WswM7307NO6XK+F+dU 817eZpsA9vORwG+1+9tzRszqMcVPAV33wPQTeGr5OnOV49kVo+PMAfqMIcTPsT7EL7UG BvfXRMBUFidqRhetKY7LViwr8KSu8hu41tmisR4yNenXm68966oUlYAsIe0bns2NDV+N v28ZpzVDmsy8Wgh5zqCDo7B5AudEDVmnadRYq7yuQtHPSwZIz9GEWikLBRxovgeyyhpp 5EPQrq28bVxPjYUm/NuhsgsHEzDNvNSu5O6qFatluW+0b9Oo0Bcec5/2z9WsdCBj1xvK u8jQ== X-Forwarded-Encrypted: i=1; AJvYcCW4ylvMzfT+50hor5eofI5lHQsP1lWSufAWMOCRWMsYSjYYg1jVjjY6e4fNMmVkVsGuxnc9HMRtJu+HPJxDqCZC2T3eD96osrejCdxi X-Gm-Message-State: AOJu0Yycl5ifuK9A2auPB7WA5F3A4aizFq229+N+P1CIV9BdRo8WTVOE aikAM0Mozy15eD4trK6iy/DdrYIYeCeWQ1x33aJSipmNxliL7qbGiY8RDb9xmSokKSKRS4VvhUj EO9mQrdJrR+moIkc+YEevy51krtpkRnopgYWSq3JZyY3rO1ei5sPkaxY= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1cac:b0:36b:1b8b:75f4 with SMTP id x12-20020a056e021cac00b0036b1b8b75f4mr165809ill.2.1713924063116; Tue, 23 Apr 2024 19:01:03 -0700 (PDT) Date: Tue, 23 Apr 2024 19:01:03 -0700 In-Reply-To: <000000000000f1761a0616c5c629@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f450900616ce0aa5@google.com> Subject: Re: [syzbot] [net?] possible deadlock in __unix_gc From: syzbot To: axboe@kernel.dk, davem@davemloft.net, edumazet@google.com, hdanton@sina.com, horms@kernel.org, kuba@kernel.org, kuni1840@gmail.com, kuniyu@amazon.com, linux-kernel@vger.kernel.org, mhal@rbox.co, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 47d8ac011fe1c9251070e1bd64cb10b48193ec51 Author: Michal Luczaj Date: Tue Apr 9 20:09:39 2024 +0000 af_unix: Fix garbage collector racing against connect() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13f440d3180000 start commit: 4d2008430ce8 Merge tag 'docs-6.9-fixes2' of git://git.lwn... git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=100c40d3180000 console output: https://syzkaller.appspot.com/x/log.txt?x=17f440d3180000 kernel config: https://syzkaller.appspot.com/x/.config?x=98d5a8e00ed1044a dashboard link: https://syzkaller.appspot.com/bug?extid=fa379358c28cc87cc307 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16a8fb4f180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17ceeb73180000 Reported-by: syzbot+fa379358c28cc87cc307@syzkaller.appspotmail.com Fixes: 47d8ac011fe1 ("af_unix: Fix garbage collector racing against connect()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection