From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f74.google.com (mail-dl1-f74.google.com [74.125.82.74]) (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 261913AA1BB for ; Tue, 23 Jun 2026 05:35:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782192939; cv=none; b=fl2mNEbVsNBpjdGhYUHqgjzBqFnJOpY2UlRN9rVAx9ve3BvgZ0NmpHa4A7fZCYfAFWepil0VY4s0Zsi3iPE2rcLsgQN/MrLoqFcvuryhV7sfcy1Xk0qupmopwjbDP3B9kPl9YULn3DJG9nBgMSQDinbf5iIeTogxOAyVpdQLpn0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782192939; c=relaxed/simple; bh=vpY89zTXq+TFA9e0tPvx2fmivWMWEMltN3valuftgr4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=UbfZZmMSPF2g4fnBZS5lrsSwTswS/anBil5BkV+aF5ss4DNciOAYcoYL2U16O3EoOKyFu+hs3XeeiVoGmJehbjGUReScWmv/E0fj8MYbZ9Pj13kxxJKwtfqcM/b2dRRuBNZUNAz3Z3Kg797/5YQFZAenRukZr58JDjOXqajCkKI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Hg2Ruxtq; arc=none smtp.client-ip=74.125.82.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Hg2Ruxtq" Received: by mail-dl1-f74.google.com with SMTP id a92af1059eb24-139b62317d0so7830439c88.0 for ; Mon, 22 Jun 2026 22:35:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1782192936; x=1782797736; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=O+KNhjfau2qXeYaajZSYTjVk1U2OevA2gov1CAYXhgo=; b=Hg2Ruxtq5m9bJKSLYhz205wRmrPpNRxUVwWt8rp4Ni2egbZ/D0SPPjGfNw4xPVUTs3 XZ7aF1xSgHQrNCl/PBxe32qQuoLWzmMDisrBF6hF491WVveX4wLd1sneZB1OWuqixS79 33Wp9l0T2YOXbgF9rVyElOxIc8L35w6AFMVgtvcEZBeO2Tru4ItFqyC2E7T4q4XcQZri H00QAO5YJJkkGDD2is1lv4UnV+/ePxPX7mzRfXOcXj4olwMhUyZec4VHDlj4A/8v6TqX VZh8I9R5xw4cpz14rh2x9PDe3vAa8PIJAc8O1w2cFvEAkL9fId9w55Mw6SqTRlacGTtg JIKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782192936; x=1782797736; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=O+KNhjfau2qXeYaajZSYTjVk1U2OevA2gov1CAYXhgo=; b=SFD/B23Uts8OMiBQeQg3JIXkBKxQJ7bheYLvhEsfvLwGEWrxOfq+D6EfGOmeGkOQFd maR8/IqhDDx7fZZEKM4AOTlTXD0owCJAOuu0tzsiyTYsxUi6LefKm4lS7eVb/Ynh21P3 CF7JfmRYkjzKIiT+jmLR5KCkzSR8cFzQFt5VSKssV5MpUMr9qIS0fjPTALVhUhENlyku F3MwYvrKRRiCGoP4qH9WiHbIDuWCXWsr9WAGGi5dHxQQlwrEvnaMak8ZdczTdpyf8krf dEgBrhfTdAUV3u7W9S2/z/vWFMWAAxzyZWhfZc5dhccsnDDrQsEfP9bbvWejm9ZczeSq nfHg== X-Forwarded-Encrypted: i=1; AFNElJ82dKlOyHZq/691YVLje6SNyq2mzPHxATbMaoYbOMvcTauKqB6vrX50NmebMMHQCgLwVbWrLPEz78kXrKo=@vger.kernel.org X-Gm-Message-State: AOJu0YxflfT+6Bd5dzV1h2kF4Q18jGQqvp1ggFRhR1PAXGjj/aM6/KsK 1ZwMtwZ4K/wcI5IxEkg6aV1RfEgnwJp5yqXc5LUIzCO2On86tkS5k0KAl+pb3cPCtcrwssNiEZ+ vb4SwM8SGQg== X-Received: from dlbdz8.prod.google.com ([2002:a05:7022:ec8:b0:136:23d8:d537]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:20d:b0:139:7bac:db41 with SMTP id a92af1059eb24-139c705bb41mr695946c88.28.1782192935917; Mon, 22 Jun 2026 22:35:35 -0700 (PDT) Date: Mon, 22 Jun 2026 22:35:05 -0700 In-Reply-To: <20260623053515.2677888-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260623053515.2677888-1-irogers@google.com> X-Mailer: git-send-email 2.55.0.rc0.786.g65d90a0328-goog Message-ID: <20260623053515.2677888-4-irogers@google.com> Subject: [PATCH v1 03/13] perf top: Fix sb_evlist leak From: Ian Rogers To: acme@kernel.org, namhyung@kernel.org Cc: adrian.hunter@intel.com, alice.mei.rogers@gmail.com, dapeng1.mi@linux.intel.com, james.clark@linaro.org, leo.yan@linux.dev, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, tmricht@linux.ibm.com, Ian Rogers Content-Type: text/plain; charset="UTF-8" Fix a memory leak in cmd_top() where top.sb_evlist was not freed if evlist__add_bpf_sb_event() fails. Note that evlist__start_sb_thread() and evlist__stop_sb_thread() take ownership of the evlist and free it, so we must only free it if we fail before starting the thread. Assisted-by: Antigravity:gemini-3.1-pro Fixes: b38d85ef49cf ("perf bpf: Decouple creating the evlist from adding the SB event") Signed-off-by: Ian Rogers --- tools/perf/builtin-top.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 5933c46ee137..abc74b8ab759 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1881,6 +1881,7 @@ int cmd_top(int argc, const char **argv) if (evlist__add_bpf_sb_event(top.sb_evlist, &host_env)) { pr_err("Couldn't ask for PERF_RECORD_BPF_EVENT side band events.\n."); status = -EINVAL; + evlist__put(top.sb_evlist); goto out_put_evlist; } } -- 2.55.0.rc0.786.g65d90a0328-goog