From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 0B8ED186A for ; Sat, 5 Apr 2025 19:32:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743881548; cv=none; b=Sajx7vTldSztPO9SW4Z4SLS0/5dJopEpNMiBWFDqKJHexsfMuQBXfctVFuuGZ8onbpXcVXdKORnk3HB7YBpG0ujNwQyGdRuxMkbnJcPh6S6eIARfKPuiKnMBQZDEnD78C2Gg5optPvDEdtpi0U/dUrAuGKGyyHrBAvTK7PHjEbs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743881548; c=relaxed/simple; bh=vHvqCSiW2MGBRz0l9bOc/zefZZh5UYTVjxHO1zNxoSA=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=WP1qNEffb3y08OGJ9u01VvUD/y6P+ciH67DXiwLYjQTovro+wL3D9CbsW1ZTMTB7jsjtIAM5G9gp4I2jLihnNrgqI8JaJ33wy+c9r+f+NJ9vtIoEhcm56s+AyQIfFjlU9BgjVITxdFrwWwzSvaAIbu80S7Iiep9fazQr2Gujv5o= 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=209.85.166.71 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-io1-f71.google.com with SMTP id ca18e2360f4ac-8610d7ec4d3so583194939f.0 for ; Sat, 05 Apr 2025 12:32:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743881546; x=1744486346; 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=g4bBjSLnZErUVvggytsybtPgXceJw1g6sQ/JR4P2izE=; b=n79GJK+kit5W9QHQESwfKKk5nKQq4vLXBcGcWZchVqrg/AXIGQkC4GbtrJkgcKTMhG n+uuWjABsb5MnJTCWTXhHkft/1DTdwNlnfN6wPox3fggsLGqp2fmKrkf8aTSTuOb3bA7 NTXpR55PpDhPWpwKPY+cemZCZ7BrHVLg60j2LH9P3O01zsls/tLYzzghgvQZwNfe2iZs pSzKcS3RplK4F3oYU/KE8Z7YRvJvK29TD7p2EVXFj8/5S4G9D8Vzyl75zqLXsTMRzZAR /XH2KMSuuzJKlUUfFVtEHQCfxUfYiC5F/Q0yMc2vAZskfe4hdE16WHFR9PJGD4lXD2/P XuTQ== X-Gm-Message-State: AOJu0Ywnzqek96vkIGv6WzfzHNb0hFF3/33BXcR98XQ0evVxcILB7YOg KwvqIJcdPYGvReqDJwS+8OEpbyHqwO/Mg6+mF0kYBAemIkvAx/DTYogL5+2fTT1TmPFxTxmvJpF Hu64zr4vP/Cw5mW99EODCPo8MA+d/8EuNtyHRLfz7q+76n5e2BbChtuE= X-Google-Smtp-Source: AGHT+IFgRmEzTEj1oJB91prtSC1x+VEzViUUFN5u8ltAtCczIpDJxkL5cgxBz6VCx2oqSf4qXu45vtyi/r1ignLWXkMcTm9/mP8m Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:188b:b0:3d4:e6:d872 with SMTP id e9e14a558f8ab-3d6e533d77amr72903865ab.9.1743881546238; Sat, 05 Apr 2025 12:32:26 -0700 (PDT) Date: Sat, 05 Apr 2025 12:32:26 -0700 In-Reply-To: <67ef83fe.050a0220.9040b.0366.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f1854a.050a0220.0a13.0248.GAE@google.com> Subject: Re: [syzbot] #syz test From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: #syz test Author: gshahrouzi@gmail.com diff --git a/kernel/events/core.c b/kernel/events/core.c index 0bb21659e252..153ba622cfa0 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -14016,6 +14016,9 @@ inherit_event(struct perf_event *parent_event, if (IS_ERR(child_event)) return child_event; + get_ctx(child_ctx); + child_event->ctx = child_ctx; + pmu_ctx = find_get_pmu_context(child_event->pmu, child_ctx, child_event); if (IS_ERR(pmu_ctx)) { free_event(child_event); @@ -14037,8 +14040,6 @@ inherit_event(struct perf_event *parent_event, return NULL; } - get_ctx(child_ctx); - /* * Make the child state follow the state of the parent event, * not its attr.disabled bit. We hold the parent's mutex, @@ -14059,7 +14060,6 @@ inherit_event(struct perf_event *parent_event, local64_set(&hwc->period_left, sample_period); } - child_event->ctx = child_ctx; child_event->overflow_handler = parent_event->overflow_handler; child_event->overflow_handler_context = parent_event->overflow_handler_context; -- 2.43.0