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{
    "id": 23017,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/23017/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/23017/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/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": "<20250325180821.1456154-6-barnabas.pocze@ideasonboard.com>",
    "date": "2025-03-25T18:08:17",
    "name": "[RFC,v3,5/9] libcamera: process: Ensure that file descriptors are nonnegative",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "e24aba5bb5514612e4e953700b0fed705a35b990",
    "submitter": {
        "id": 216,
        "url": "https://patchwork.libcamera.org/api/1.1/people/216/?format=api",
        "name": "Barnabás Pőcze",
        "email": "barnabas.pocze@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/23017/mbox/",
    "series": [
        {
            "id": 5079,
            "url": "https://patchwork.libcamera.org/api/1.1/series/5079/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5079",
            "date": "2025-03-25T18:08:12",
            "name": "libcamera: process: Remove `ProcessManager` singleton",
            "version": 3,
            "mbox": "https://patchwork.libcamera.org/series/5079/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/23017/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/23017/checks/",
    "tags": {},
    "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 5F66CC3320\n\tfor <parsemail@patchwork.libcamera.org>;\n\tTue, 25 Mar 2025 18:08:58 +0000 (UTC)",
            "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 7176E6895C;\n\tTue, 25 Mar 2025 19:08:57 +0100 (CET)",
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        ],
        "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"odXF0sb4\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1742926019;\n\tbh=LRah4/0T+HxltO41um8++msOU3ZWMbrKOU6OnXDfb7o=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=odXF0sb4VeC7nOmUH/u2RxOwi5jQyl49VgURbZUOb1PPLwWZPJPwzwh6YX1AUI6QZ\n\tcXIQEZSacFYL0WcHZ3C3eKT04pPasGiAxdxd1WQasRHSiLihyoSqbEHn+tA7xxxb1A\n\tXICfzEzkOn5DmWh48FvPKa80F1Kg4rF+yyer0Ap8=",
        "From": "=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= <barnabas.pocze@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Subject": "[RFC PATCH v3 5/9] libcamera: process: Ensure that file descriptors\n\tare nonnegative",
        "Date": "Tue, 25 Mar 2025 19:08:17 +0100",
        "Message-ID": "<20250325180821.1456154-6-barnabas.pocze@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.49.0",
        "In-Reply-To": "<20250325180821.1456154-1-barnabas.pocze@ideasonboard.com>",
        "References": "<20250325180821.1456154-1-barnabas.pocze@ideasonboard.com>",
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        "Content-Type": "text/plain; charset=UTF-8",
        "Content-Transfer-Encoding": "8bit",
        "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": "Return `-EINVAL` from `Process::start()` if any of the file\ndescriptors are negative as those most likely signal some\nkind of issue such as missed error checking.\n\nSigned-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>\n---\n src/libcamera/process.cpp | 7 +++++++\n 1 file changed, 7 insertions(+)",
    "diff": "diff --git a/src/libcamera/process.cpp b/src/libcamera/process.cpp\nindex 716523acc..62e63255b 100644\n--- a/src/libcamera/process.cpp\n+++ b/src/libcamera/process.cpp\n@@ -243,6 +243,11 @@ int Process::start(const std::string &path,\n \tif (pid_ > 0)\n \t\treturn -EBUSY;\n \n+\tfor (int fd : fds) {\n+\t\tif (fd < 0)\n+\t\t\treturn -EINVAL;\n+\t}\n+\n \tint childPid = fork();\n \tif (childPid == -1) {\n \t\tret = -errno;\n@@ -282,6 +287,8 @@ void Process::closeAllFdsExcept(const std::vector<int> &fds)\n \tstd::vector<int> v(fds);\n \tsort(v.begin(), v.end());\n \n+\tASSERT(v.empty() || v.front() >= 0);\n+\n \tDIR *dir = opendir(\"/proc/self/fd\");\n \tif (!dir)\n \t\treturn;\n",
    "prefixes": [
        "RFC",
        "v3",
        "5/9"
    ]
}