From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=205.220.180.131 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792598917; b=yaCL1y1qNOjnsgPnXb4/+zv3o3qdhz9/QrTE8WsN15/aCis2XW8U92kSXxpS07bc/NeX LBmchkT4jsqtHPV1JUyAv6q9Yg2jfbeSB+CCwWpyt2lOkq2W3anIMoZ73wvRfjup5Rv2F aWI2lgQqoiDEqqoG/aMftFz+fAHrrXkgMH3ofgQdVjX5UcQeXAmdI+OakFdHiGikJCL8s wuanrtZi6uYUZ1lY5RPr7eMP7fUbHw+ynRZS2WgBmzZHlX/gS0chuesqcHUMRYMQulPeB kjdw4Wpz6x4qQNHacppHuWzXCKnPBxvlBjtW48QuZ4jKuyoXhS4LcRl0+XthDyewkcw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792598917; h=DMARC-Filter:Received:DKIM-Signature:Received:Received: DKIM-Signature:X-Google-DKIM-Signature:X-Forwarded-Encrypted: X-Gm-Message-State:X-Gm-Gg:X-Received:X-Received:Received:Date:From: To:Cc:Subject:Message-ID:In-Reply-To:References:Organization:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding: X-Authority-Analysis:X-Proofpoint-ORIG-GUID: X-Proofpoint-Spam-Details-Enc:X-Proofpoint-GUID: X-Proofpoint-Spam-Info:X-Proofpoint-Virus-Version: X-Proofpoint-Spam-Details; bh=xpcFx5Tgg5MtNBAEwITPf99dESr1dNj5mhlvVGEZ9HE=; b=43S6Z5RUMkqiVsDBNUECbA3GeIbDeTgEERhC290XTYYfaJKAA+YIgsucXKOgN9vyBerK rnmc1ulQMmjZ+Aayb21CXtu/dfwD6dic/WVFB0uuCgiF0wOtFMcF2agWh6BitOXf3ItPl fLnHMjrhNIoV5qtFYNOjX07BkmmsMGZMo2vr6Ce20fKkBAlnhkzunR1OFd+NEp9l/mXVk Z37tgV/XeydMgKvU9/RFsXkCXMSc6VyNgHOnBNBvvETSIoWCwPTWgjGG4+v7O3NXOW0Km BH6q5+MnwghMRhR6xeCT6r2pm7r5boLOhNr2XUbrg/P+rMDuNwlB90Eu43Gb0RV1jXA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=ppsqazaf; dkim=pass header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.a=rsa-sha256 header.s=google header.b=AlgG2yKd; arc=none smtp.remote-ip=205.220.180.131 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0DE10606A31B for ; Wed, 21 Oct 2026 16:08:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 0DE10606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=ppsqazaf; dkim=pass (2048-bit key, unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.a=rsa-sha256 header.s=google header.b=AlgG2yKd Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 69LFTw0d991790 for ; Wed, 21 Oct 2026 16:08:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= xpcFx5Tgg5MtNBAEwITPf99dESr1dNj5mhlvVGEZ9HE=; b=ppsqazaf3z/Ovnn1 SzWOwFC6FBH4fWPIj1FFpw1+MfbxoKTpq3L+dL3Z+e3w7356YZ6RysSOxUSlT+jE QJ63VeLe4fC9YoZU8/wWjZGfXODKSBwllcZGiYbUnENdNs5V4JoZtOO0xT0uHd/I xWphiIy5SHHmhNox7zwzrK2Vqs+UWLy3gU0nXuyduCWSyhwAtJrrWHEuN+VRgTMm hlzoca2KU2LPeFWWVXhGFOSPOe97rBtnG8yGmM71Gq6BNVbN2C1Iwmwrje5lGBva VCVasiUkD3EzsCgdmldMxwRAjdIFHG23zVG5vKxeMRaRrlso7XF2npL2q3GBF2Sc GdYlJQ== Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4heh5r3xmu-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 21 Oct 2026 16:08:35 +0000 (GMT) Received: by mail-pf1-f199.google.com with SMTP id d2e1a72fcca58-89e96c03cd0so677638b3a.1 for ; Wed, 21 Oct 2026 09:08:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1792598915; x=1793203715; darn=vger.kernel.org; h=content-transfer-encoding:content-type:mime-version:organization :references:in-reply-to:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to:content-type; bh=xpcFx5Tgg5MtNBAEwITPf99dESr1dNj5mhlvVGEZ9HE=; b=AlgG2yKd9rezGDoVAK8tHC1EbYhTk2vdFncR/cM32rw1R4Kg3pGEJ0vzzMUUx7am2N 86uFG8yz6c1dkLP+e0mlLOW74Aii11LwnHh6fizV8MJzmvSB9foYSYt7B6+SfKXOmlOU Y6Cd4lU5EU+M/yf9x4qe2bkTw4WDOkMAUJHSr6XLAbH8+Y8BH17FStqqZhf/2q8FscJw cB+wBWGPasCxLlurN9xiTMFpKGvWaFBONYji6K3D+LV/lFZp1gWdKI7v38J83C01YMr0 gyz0RChxfsYPVwnpEgXAWOU5LDy9m3J/wYoFEU1tDek9N9ZCBN27nPim2GM+ANVs7qIi W2Zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792598915; x=1793203715; h=content-transfer-encoding:content-type:mime-version:organization :references:in-reply-to:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=xpcFx5Tgg5MtNBAEwITPf99dESr1dNj5mhlvVGEZ9HE=; b=2fCwmwBLKY8ylrqeL5S/3pKDkFu6Gr2TvdZFztvRQ/OdxQA292xXlwWdDJq/1O/Noz XeB99XjPErMXZhOyNIu+tjVYlK1NGqso1HeJktWFl/bsvKTpzEE3Ik8lrS9SOJNpgzvq 1WMbWrfMEVkfs0t89aciO0iTQ6GWL5e27QuSOv3J++71Sy6qSH62aKBawNA6OT8nLrG8 kIVfsJH0g8ASmEEEM3CgJWmemGPyvEm6QjuAgFmraXk0AQ4kjPqiOUaJeKNiGqVQK1MW bM9PpNYZ/6zsKM5xj7HeNthzG1pCZaSD5O0B9RjFshCe4+xl25urEyPM2hbZ0NwacyHT 9Bdw== X-Forwarded-Encrypted: i=1; AKwUvBytyafLc/vGDH+tZdsiwKXK6nvO0GG41RZFEy1/W8jo/GpvG5LBz+Mh/45Eet7/gEJ0i7gWMCErpJA=@vger.kernel.org X-Gm-Message-State: AFq9FYJwzRN+4CnL7FbByTy55MCU7H5OCxnamZtvZILjrQU5N+NYXGCa lFlHmcPH28jXep+rle6ZQmvextX9lqCf69bNfnMmDGwgJvQ0xkf5Zsh14uwbSw2xxvcG7gccL/1 ADZMExVg1jgW6S9+gC093f0ptCl98NdJ/GHDTj/Og3vNudhYSEwUnEhBFmJACmps= X-Gm-Gg: AYBFou2QvRd2qFSRbag7hLLXk3At8JZRPpPpGA6rz5wJzLVcOQRPdz4xrpoq1T9qIQ7 8sgJ0R0hU032P4z3ujFdGIq7uggEBq1OE9paI5pR6S6zDKmrJDCUm6Kjfwjf6uCZ+OtcZMYg2Ii h0VxvPuWLLabeQVBACnbew1fN2OQNcLBf8A6hR9WpsAee4xXJ2sbiHxkhAsrqVJ/Qe0nGB5z6LG TupfK77MZKCXYK2HyiKGQVAnkLZG3kA7jvGkOnA3qHpaWSPMBsdlL8dp+4nDBDZHDPIyoRzsJGw t+ym4fqvQ9yjLq2pM+SBDTVoAyqlRidpeLfkuRMu+qAVmLY+9CB8THwV2t4nCyKiTUFyk05xQ9R i+wmpV9DK0BW/KNpbloTPMv/vAXimR29NaTlmvkvdRA== X-Received: by 2002:a05:6a21:3288:b0:3e2:2b76:bf23 with SMTP id adf61e73a8af0-3e287eda189mr2084238637.68.1792598914716; Wed, 21 Oct 2026 09:08:34 -0700 (PDT) X-Received: by 2002:a05:6a21:3288:b0:3e2:2b76:bf23 with SMTP id adf61e73a8af0-3e287eda189mr2084221637.68.1792598914240; Wed, 21 Oct 2026 09:08:34 -0700 (PDT) Received: from localhost (i-global254.qualcomm.com. [199.106.103.254]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cd6b861c7dfsm188964a12.25.2026.10.21.09.08.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Oct 2026 09:08:33 -0700 (PDT) Date: Wed, 21 Oct 2026 09:08:27 -0700 From: Jonathan Cameron To: Jason Gunthorpe Cc: Alexandre Ghiti , Albert Ou , Ard Biesheuvel , Arnd Bergmann , Catalin Marinas , Jonathan Corbet , David Sterba , Ilias Apalodimas , linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-efi@vger.kernel.org, linux-riscv@lists.infradead.org, Mark Rutland , Palmer Dabbelt , Paul Walmsley , Randy Dunlap , Simon Glass , Shuah Khan , Nick Terrell , Will Deacon , Alexandre Ghiti , Conor Dooley , linux-integrity@vger.kernel.org, Palmer Dabbelt , patches@lists.linux.dev, Piotr =?ISO-8859-1?Q?Kr=F3l?= , Ross Philipson , Sami Tolvanen , Song Shuai Subject: Re: [PATCH v2 03/15] efi/libstub: Free cmdline_ptr in efi_pe_entry Message-ID: <20261021090827.000078b8@oss.qualcomm.com> In-Reply-To: <3-v2-989a18390eb1+486-arm64_drtm_jgg@nvidia.com> References: <0-v2-989a18390eb1+486-arm64_drtm_jgg@nvidia.com> <3-v2-989a18390eb1+486-arm64_drtm_jgg@nvidia.com> Organization: Qualcomm X-Mailer: Claws Mail 4.4.0 (GTK 3.24.51; x86_64-w64-mingw32) X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=aI5lOr9m c=1 sm=1 tr=0 ts=6ad8e383 cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=kj9zAlcOel0A:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=Ikd4Dj_1AAAA:8 a=EUspDBNiAAAA:8 a=gCM90IwNaqpJe8xd-nwA:9 a=CjuIK1q_8ugA:10 a=OpyuDcXvxspvyRM73sMx:22 X-Proofpoint-ORIG-GUID: nSmi2SypQRZhtuTsv_bLiTWUWYrZJ7Wi X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIxMDA2NCBTYWx0ZWRfX4HhTmvrlBgu6 RQv+Te9net9CZ+gygzzTNgQWGZEj91W0STiV4zsnWd2a05Cge2Hr9rhzvIpYTxEu1XXt9+NH0Ae WXkjDsFyv8Xmj9dHHyMZh0VhYRL7QilSjCOXJfMihVN6G1Pu58NSgv4jczi/g+jVlzKGg8XLni0 /MOOznZHRGUzJ+v6vH0rxbYB3XDjGVydvbSey8Sk0ipDu/hNXULhnt3XgnKd412HPeH7jOEMNOL IAFKYfzI+eOQqJepC1sRr8CICsKtFCBuZhI6mj9OItSqqH0PH/sftgsuJnLGA3kJlbEixXBP1x2 xqmo1J98du5dWI79ySQd8gOhYlVQnvKSHDmgHLshBGADvAe9qW/18Ld+GwGG+Sms6dm0RBNDwP+ 2Kh0vrDr6Bf7buINmlgU40vDmQCybU+8kspFdAdNgzGW3be2uyYXyQKaB4zbCzZqqKHJGc6x/rd uthHGLLeoo411Rq+Jag== X-Proofpoint-GUID: nSmi2SypQRZhtuTsv_bLiTWUWYrZJ7Wi X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIxMDA2NCBTYWx0ZWRfX1EBv7hOR2ENX ZzKRWP1+pGVDRjehT3LPrRlWvuF9SnBnsECgiJrF/p19PGdNDuFRwc6xJB65eX+rh9pYILjtIey 5tvt/Pao/LtxxCBPDabTP0WhOeNF2J0= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-21_04,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 spamscore=0 bulkscore=0 malwarescore=0 suspectscore=0 adultscore=0 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610210064 On Fri, 2 Oct 2026 20:31:40 -0300 Jason Gunthorpe wrote: > Sashiko points out that efi_handle_cmdline() allocates this memory and > hands it over to the caller. If efi_pe_entry() ever returns it should be > freed. Add a __free annotation. > > Fixes: 42c8ea3dca09 ("efi: libstub: Factor out EFI stub entrypoint into separate file") > Signed-off-by: Jason Gunthorpe Seems sensible. If anyone has more time than either of us, I note the efi_handle_cmdline() use of __free() should move down to the point of allocation. It's only a couple of lines, but none the less... Reviewed-by: Jonathan Cameron > --- > drivers/firmware/efi/libstub/efi-stub-entry.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/firmware/efi/libstub/efi-stub-entry.c b/drivers/firmware/efi/libstub/efi-stub-entry.c > index aa85e910fe595e..fc1282fb442e71 100644 > --- a/drivers/firmware/efi/libstub/efi-stub-entry.c > +++ b/drivers/firmware/efi/libstub/efi-stub-entry.c > @@ -40,7 +40,6 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, > unsigned long image_addr; > unsigned long image_size = 0; > /* addr/point and size pairs for memory management*/ > - char *cmdline_ptr = NULL; > efi_guid_t loaded_image_proto = LOADED_IMAGE_PROTOCOL_GUID; > unsigned long reserve_addr = 0; > unsigned long reserve_size = 0; > @@ -63,6 +62,7 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, > return status; > } > > + char *cmdline_ptr __free(efi_pool) = NULL; > status = efi_handle_cmdline(image, &cmdline_ptr); > if (status != EFI_SUCCESS) > return status;