From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ABD323314C3 for ; Sat, 28 Feb 2026 17:52:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772301176; cv=none; b=btuSvX0WfVPTcl12BRDrPCdobN7UEHlg1okZAvPAJYfjy9T2WNUwCtooYALfJhOL7qIdr2hWczWMCfqMSx7lEKMExPIo1Okoy3IRHG+9M7N77YjNCQurO+58dbEXnFfM4tgg3i/UoZXpd+i7+/o5GlKJa95nYr491p1mrG0LQ1c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772301176; c=relaxed/simple; bh=WOfrvr/MpfE4AEwCXSdBTXFmtSK5GfREWXQjhEZsXC8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qPHCi218yHZgdVq+tgm15HBDuy6OhyqeSZTlCb1l58iJ2b62p6vq4VDn0MpI+WQ9jQje5M0fBfPksHINu5o/zt2TI6WGVfK4oz0hDFG0gKKz5xfGa7Oi2HHKdD/G67cBulghXs0zFOwR+BMjeHwS0T8gN8fGc22AFZP70Fc+3Qc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BJkWGJEm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BJkWGJEm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 08855C19424; Sat, 28 Feb 2026 17:52:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772301176; bh=WOfrvr/MpfE4AEwCXSdBTXFmtSK5GfREWXQjhEZsXC8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BJkWGJEm/KARoGKfTNDuTiFh/o1fmzNZNlYmBl1yzv4UYRk94IKeffncF7OZ0J/Y6 /+rhbhMkR/bdjQok6igglAGP/mQiKZy8OL/iFYoGslQ9xFq7UZ7TlZ51fZZr6NtRIM u6J7OcZddbrtkMs/nZ39/0mCwDXjxo7KW3fOoU3qyU8vYVGYE/CjuQubi9670oPBSI tbGfeaTJzWpw99jRo4qWJkz3wDQLdcF6d1zwdL6LoZD1v624eq/cOGdLVr8ub1oUHi J5jyXeb5HdOXxxUBYYuLa2IpiScsZQmbUhvZ6TB9L+37fN9+4kEEhI/jt9f28P3Owh SkIhjrZw/npqg== From: Sasha Levin To: patches@lists.linux.dev Cc: Diksha Kumari , Mukesh Kumar Chaurasiya , Greg Kroah-Hartman , Sasha Levin Subject: [PATCH 6.18 344/752] staging: rtl8723bs: fix memory leak on failure path Date: Sat, 28 Feb 2026 12:40:55 -0500 Message-ID: <20260228174750.1542406-344-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228174750.1542406-1-sashal@kernel.org> References: <20260228174750.1542406-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Diksha Kumari [ Upstream commit abe850d82c8cb72d28700673678724e779b1826e ] cfg80211_inform_bss_frame() may return NULL on failure. In that case, the allocated buffer 'buf' is not freed and the function returns early, leading to potential memory leak. Fix this by ensuring that 'buf' is freed on both success and failure paths. Signed-off-by: Diksha Kumari Reviewed-by: Mukesh Kumar Chaurasiya Link: https://patch.msgid.link/20260113091712.7071-1-dikshakdevgan@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c index 315bab3737294..5d28dbf8b50ef 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c @@ -315,9 +315,10 @@ struct cfg80211_bss *rtw_cfg80211_inform_bss(struct adapter *padapter, struct wl len, notify_signal, GFP_ATOMIC); if (unlikely(!bss)) - goto exit; + goto free_buf; cfg80211_put_bss(wiphy, bss); +free_buf: kfree(buf); exit: -- 2.51.0