From mboxrd@z Thu Jan 1 00:00:00 1970 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 9A2601BC2A for ; Sat, 5 Apr 2025 17:12:15 +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=1743873137; cv=none; b=kxdjggsvqQK2PIUZHEjlkMLs0Skw4Yy9/oD9ZxJgh5w0gzuCDVAunC7Y9B3P+KjSvNSkoot4kg1rK3jOH4RhQ8UI9V42n/Jjfc0C3o5QH5WkEBu3bubcTo2b1dujqTgJ0URn5av7+1Q4bEhX6HsSK5y4tgsJxz7A9VVZgUrLfU8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743873137; c=relaxed/simple; bh=CVOcKUDZBIPDU8lXdK+Y0lVv6c+uU5JjYv7RWMPVzqs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=qqI8VwXPy7DBTouIhXM8+bAg8+ENE9lwIr8MlgBvQGwyxy2aQ96UJ1Yn3NvydHfiK/C6HvroxoVFOB0xXRY5IR+3ympC78El5FV5dXqrfCuDJ+y5qym3u9G9ntMMVCmeocLb3+9RRkl6C6P7ttNNe0Pjdz+ttWRfRaxgomkOVKc= 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-3d5b38276deso53410045ab.3 for ; Sat, 05 Apr 2025 10:12:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743873134; x=1744477934; 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=nT+HSTHiZ9CsHaz5CeBYSjEeXYVheQIiifj11yIZg9s=; b=Fa8DI56XiL9hBPf+mGynBxGtvm+hhEvLKyBZtjz8MVLvSd9Uusv5Z+N3gL+ZiUGUua gnWeu24NnWL8nakmrkKdn8I/bxln54+kO2BZsFmBJyfxLo+SanjAYzX8+aMmOA1eSnPw ILyovLMQ/A2q7g0iV9iIkY9bWmR+K2lujQjgash2ITGOebny6C+pwQ/SkIP8x93low/Z GDmsfOVUftKndNG4hMKH204QGtr1bTufaLrjPF7bl4Ao6mFhn3npK06VRpNoc2Tl0S8j 8rxUqLC2gLOD62DyamCM9VHBIKhaYR3OVGQzrUe7a0JPL30m1xrqLk9wzZ78xQ0ejnMs tmkg== X-Gm-Message-State: AOJu0YxaIgoIZNHcQf3sWTP1zwexGa4svY5NJkjL2m3mM+Wu82a7kDOr 8mQJx8lEIjqa+LBWnS4Z8YHwyXkJmk9lO21eCsFQ1tRrchflNNh8hCoo1lPKcO5ey7R7k5a970M xL52aLCJLW8sS4+uZVi1xow9A1GEi2Pz7sGPJBy5denJKhRVIR2BJmPs= X-Google-Smtp-Source: AGHT+IGSYu5a65fgnsqoWEpL4xU+Z+4XO0o5Xuv7h/2MYMzgKYNA+3jIEDgSrziQlRknQyuFDLWzXRWqB+1EUxRpjBu7/Vq78ZQs Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3089:b0:3d1:7835:1031 with SMTP id e9e14a558f8ab-3d6e53181dfmr82745475ab.7.1743873134667; Sat, 05 Apr 2025 10:12:14 -0700 (PDT) Date: Sat, 05 Apr 2025 10:12:14 -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: <67f1646e.050a0220.0a13.0243.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