From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (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 22EFE23ABBF for ; Fri, 17 Apr 2026 13:17:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776431880; cv=none; b=ekmv+YvG0U7ApTC8g0MqLJIeRqnYhcRbjxsq24ZYXhIoqxswk2GQyfUsMLtUk/GY/zxsTBWmKRxFODYm2sDxyWvnakcbC15kF8Nb2fqMh3blwleVrQ1iIRFV8cGOPS+SgK4NVWFhVfyK34s1Y9ws70pOL0UeuwCc6xdwisD3HRo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776431880; c=relaxed/simple; bh=4DyngOCiUwuBV2TeTJ6rHi1WlGo4jcEcygxJzJUYMg4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=sIzUa/XuChODvELisEPMyaw/NtE2vgrrPCTuwpV5195YgYBUkaEVrqamOmvYYbcNNvgSwBtF8DSlaokhwKOw05iGOH4/ko0EMox1i25DkMLh7rTehN1uoEGX92/d2jt25fpZUOs3i9YnvIHHvhqPqDstLQXpMG2R0FVccbyIeCk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=keZ35Q3C; arc=none smtp.client-ip=209.85.214.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="keZ35Q3C" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-2adbfab4501so3007295ad.2 for ; Fri, 17 Apr 2026 06:17:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1776431878; x=1777036678; darn=vger.kernel.org; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:from:to:cc:subject:date:message-id:reply-to; bh=glqQ6qYTvvcF2xmLwx4uSSeXniDWz2W2Hha8YXauDbg=; b=keZ35Q3Cm+9tQmqyn7idobogOY+URcZ80hyR2rJNTtbHUhyQwuDf+J6Qqy8sCsfVu7 k8XhKlRgFx5Ku9NO5jt5Q/kQ50VE+hNubt30Lme/yIqVwBDK9KwEJoxveaP81n/jGRWU ARAyWhTskyQHVv36Ml2ZK1v8GQFjhYjh/0J8vVnwK4axc4nVqJm/PllpEvx4pZHXB2Ah vNs/ZCU7PAFXyqKq3UKLERwqPzyZnIkunrU+qhCWlJ7ZRflafCI6Y1cCQS6oRbQW2kKQ cJI41g/23HEMLULOmdOv8fADVrk6mNV9btfdhae6bCLZbpGdqJsLVQstrahAJmHZoWta I1vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776431878; x=1777036678; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=glqQ6qYTvvcF2xmLwx4uSSeXniDWz2W2Hha8YXauDbg=; b=ps+5ZboLq9hkM3FtJ7tNKv3j1IsbhMWwJ1vRniqCG/b3q6xkfE3PBZ6yMo0Rp5VFpl fXe84nSgmEoZaEb98TPPtVuG4jdL76h3TFukM7FdBa8r2DVIjjXTi2y6L8tJXdCzNKQT FrjbCyJUMr4FqxlX9oF1hUb3VmX4NTXqHjQgJ5xp9CFjJDfvQs6f5hPgLZI3SS+eCifQ 8Q0ow+t/vUx6A/PWjmyjdciBKqdiHhQFzedJG/WKyzMKWlCaFKJcU530dfv+zCottD2q A3InYKc3tCoB3GPrE1pKDleq21Sjn/flUpZGVBXEyudo9HmHfS7XwhKM7xd+r38I95D9 8iug== X-Forwarded-Encrypted: i=1; AFNElJ8q01GQ9oGdhDLZRe92dMo4iYw+rypIuVSM7/Wny93SVL8JFX6lMxqdexMjRZEBPP2OmaRoAaTZsQKdrqA=@vger.kernel.org X-Gm-Message-State: AOJu0YxzZDsYygA0do5bbKXYqlyr8OvxX0CKXVbekI6xH/5bXOOHf05w oH1DpyFZzJhtAanRS7DmljIosFqmg746GpoPzGNujRWKh59vx4q2QttG+vTuRBooxWg= X-Gm-Gg: AeBDietNkEy6J6M0pcaxjZPbl65I6x1OQL8pcFG3US/PHU36z8bubRBKmQyAefBZcmE GpXgIK58WBUgygPucrXzcdQNcOvqNvo+m7Xu4nAIwqxVpUmNMyjaLlLu0GDKgF6tbCsuZMxIZMD /T9cHwoOqtajb1jL2f7cs5sGXp0Sw4bybFWN35ZKnt0oB5BBJ8K5XZUnFi6qpG/7+ukj5QwP1og uwcJ37IKdjXf+3STmCcsYEDxWnG3jK/xfGA33x4y6uDjpeuS9CI8HwtZjvIljB/g1l8cRnAUy84 inLJ7FZkaJgOrIof077JsklyQlSf3VD3PDTBEsPGyfwgS+PDH1EdW6QsNhapbFtOo323632gZaX PLyIuJp39GXi/y8Qd5ej3ApcbQKnHIH/281ELEsLzLWR7SkxTHDoEmCYAMI4/WwDksUastuDQwJ 3X9yngjtaxy/y6Thk8oJjF2SJcaYzJ0z7q1zR3t1Ar8wzyNpocvMPszDT5paJO/xsLwRF4jQzYw ytNogPkqFzykWeXP578Rkic3sFzaR/boMmEDuyvJg== X-Received: by 2002:a17:903:3c70:b0:2b2:58c7:2ce1 with SMTP id d9443c01a7336-2b5fa02f3famr32590055ad.36.1776431878170; Fri, 17 Apr 2026 06:17:58 -0700 (PDT) Received: from junjungu-PC.localdomain ([223.167.147.125]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b5fab0d0f8sm18580465ad.47.2026.04.17.06.17.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Apr 2026 06:17:56 -0700 (PDT) From: Felix Gu Date: Fri, 17 Apr 2026 21:17:52 +0800 Subject: [PATCH] soc: qcom: wcnss_ctrl: fix firmware leak on req allocation failure Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260417-wcnss_ctrl-v1-1-5811ffbd8f49@gmail.com> X-B4-Tracking: v=1; b=H4sIAAAz4mkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDE0Nz3fLkvOLi+OSSohxdE2NzC2MDS0sjU4tUJaCGgqLUtMwKsGHRsbW 1AJxhjxdcAAAA X-Change-ID: 20260417-wcnss_ctrl-43783099258e To: Bjorn Andersson , Konrad Dybcio , Rosen Penev Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Felix Gu X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1776431875; l=1591; i=ustc.gu@gmail.com; h=from:subject:message-id; bh=4DyngOCiUwuBV2TeTJ6rHi1WlGo4jcEcygxJzJUYMg4=; b=15lsJh/n+7T7NdelBPrtskbIZPOV9i415wPEXjZKBBNC6Aqqn6TpcLLdKzZOHOBBU/H7hw/sL 1Vs5p9xqiopD2Ev7DSuAbgBEUaA+9VIPKDzC0d2xEsOHS2JoIY58I+C X-Developer-Key: i=ustc.gu@gmail.com; a=ed25519; pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw= In wcnss_download_nv(), if kzalloc_flex() fails, the current code returns -ENOMEM directly and leaves the firmware reference unreleased. Fixes: 908061f0ad30 ("soc: qcom: wcnss: simplify allocation of req") Signed-off-by: Felix Gu --- drivers/soc/qcom/wcnss_ctrl.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c index ffb31a049d4a..f046d0248306 100644 --- a/drivers/soc/qcom/wcnss_ctrl.c +++ b/drivers/soc/qcom/wcnss_ctrl.c @@ -221,8 +221,10 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) left = fw->size; req = kzalloc_flex(*req, fragment, NV_FRAGMENT_SIZE); - if (!req) - return -ENOMEM; + if (!req) { + ret = -ENOMEM; + goto release_fw; + } req->frag_size = NV_FRAGMENT_SIZE; req->hdr.type = WCNSS_DOWNLOAD_NV_REQ; @@ -243,7 +245,7 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) ret = rpmsg_send(wcnss->channel, req, req->hdr.len); if (ret < 0) { dev_err(dev, "failed to send smd packet\n"); - goto release_fw; + goto free_req; } /* Increment for next fragment */ @@ -262,9 +264,10 @@ static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc) ret = 0; } +free_req: + kfree(req); release_fw: release_firmware(fw); - kfree(req); return ret; } --- base-commit: 452c3b1ea875276105ac90ba474f72b4cd9b77a2 change-id: 20260417-wcnss_ctrl-43783099258e Best regards, -- Felix Gu