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{ "id": 13382, "url": "https://patchwork.libcamera.org/api/covers/13382/?format=api", "web_url": "https://patchwork.libcamera.org/cover/13382/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20210818083842.31778-1-umang.jain@ideasonboard.com>", "date": "2021-08-18T08:38:40", "name": "[libcamera-devel,0/2] IPC: Avoid memcpy() call with nullptr", "submitter": { "id": 86, "url": "https://patchwork.libcamera.org/api/people/86/?format=api", "name": "Umang Jain", "email": "umang.jain@ideasonboard.com" }, "mbox": "https://patchwork.libcamera.org/cover/13382/mbox/", "series": [ { "id": 2368, "url": "https://patchwork.libcamera.org/api/series/2368/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2368", "date": "2021-08-18T08:38:40", "name": "IPC: Avoid memcpy() call with nullptr", "version": 1, "mbox": "https://patchwork.libcamera.org/series/2368/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/covers/13382/comments/", "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 11848BD87D\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 18 Aug 2021 08:38:57 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 5F1E468895;\n\tWed, 18 Aug 2021 10:38:56 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 20DEA6025E\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 18 Aug 2021 10:38:55 +0200 (CEST)", "from perceval.ideasonboard.com (unknown [103.238.109.15])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id B379F466;\n\tWed, 18 Aug 2021 10:38:53 +0200 (CEST)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"g02J2l06\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1629275934;\n\tbh=jU7hL3uvkFcHOiuVROuYjoOdEs6bNPTF8vQwVyIPRlk=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=g02J2l06e1Q/lZ0+pcCQPBzhWf6sSMv2mNZg/FBBsHNiAYWY4kDYri9yrwfOEOAvu\n\ts3AMc/UdahHf1Q8CIQ9dvSBwszkRq8v0sjPEURRoDasliiK701mTsv94+HnNdcawAS\n\tZ54W+qH921MGG6BmmQQUYGC10GMYTc50AoXjj7oY=", "From": "Umang Jain <umang.jain@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Wed, 18 Aug 2021 14:08:40 +0530", "Message-Id": "<20210818083842.31778-1-umang.jain@ideasonboard.com>", "X-Mailer": "git-send-email 2.31.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH 0/2] IPC: Avoid memcpy() call with nullptr", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "During the fd-leak test, compiled with -Db_sanitize=address,undefined\nI noticed that few runtime errors were logged. The error were non-fatal\nbut were highlighting a underlying problem where memcpy() could been\ncalled with nullptr.\n\nThe commit messages are a brain dump of my understand but probably\nwould have some scope of improvements.\n\nUmang Jain (2):\n libcamera: ipc_unixsocket: Do not run memcpy with null arguments\n libcamera: ipc_pipe: Do not run memcpy with null arguments\n\n src/libcamera/ipc_pipe.cpp | 7 +++++--\n src/libcamera/ipc_unixsocket.cpp | 6 ++++--\n 2 files changed, 9 insertions(+), 4 deletions(-)" }