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GET /api/1.1/patches/2229115/?format=api
HTTP 200 OK
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{
    "id": 2229115,
    "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229115/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260427-qom-tests-v1-3-c413f3605311@redhat.com/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api",
        "name": "QEMU Development",
        "link_name": "qemu-devel",
        "list_id": "qemu-devel.nongnu.org",
        "list_email": "qemu-devel@nongnu.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20260427-qom-tests-v1-3-c413f3605311@redhat.com>",
    "date": "2026-04-27T19:42:02",
    "name": "[03/41] hw/pci-bridge: handle missing parent in prop_pxb_uid_get",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "b83177884f9cb7f9d6377e8e282a266b7ae7deec",
    "submitter": {
        "id": 66774,
        "url": "http://patchwork.ozlabs.org/api/1.1/people/66774/?format=api",
        "name": "Marc-André Lureau",
        "email": "marcandre.lureau@redhat.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260427-qom-tests-v1-3-c413f3605311@redhat.com/mbox/",
    "series": [
        {
            "id": 501716,
            "url": "http://patchwork.ozlabs.org/api/1.1/series/501716/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501716",
            "date": "2026-04-27T19:42:03",
            "name": "Fix various QOM object life-cycle issues",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/501716/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2229115/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2229115/checks/",
    "tags": {},
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        ],
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        "From": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>",
        "Date": "Mon, 27 Apr 2026 23:42:02 +0400",
        "Subject": "[PATCH 03/41] hw/pci-bridge: handle missing parent in\n prop_pxb_uid_get",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "8bit",
        "Message-Id": "<20260427-qom-tests-v1-3-c413f3605311@redhat.com>",
        "References": "<20260427-qom-tests-v1-0-c413f3605311@redhat.com>",
        "In-Reply-To": "<20260427-qom-tests-v1-0-c413f3605311@redhat.com>",
        "To": "qemu-devel@nongnu.org",
        "Cc": "armbru@redhat.com,\n =?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n  \"Michael S. Tsirkin\" <mst@redhat.com>",
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        "X-Developer-Key": "i=marcandre.lureau@redhat.com; a=openpgp;\n fpr=87A9BD933F87C606D276F62DDAE8E10975969CE5",
        "X-Scanned-By": "MIMEDefang 3.0 on 10.30.177.17",
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        "X-Spam_score_int": "-20",
        "X-Spam_score": "-2.1",
        "X-Spam_bar": "--",
        "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no",
        "X-Spam_action": "no action",
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        "List-Id": "qemu development <qemu-devel.nongnu.org>",
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        "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"
    },
    "content": "When called on an unrealized pxb bus (e.g. from\nqmp_qom_list_properties), bus->parent_dev is NULL. The pxb_bus_num()\ncallback dereferences it unconditionally. Check for this to avoid a\nNULL dereference.\n\nFixes: 97b9cb066e5f (\"hw/pci-bridge: Add acpi_uid property to TYPE_PXB_BUS\")\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\n---\n hw/pci-bridge/pci_expander_bridge.c | 8 +++++++-\n 1 file changed, 7 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c\nindex 11623a5666f..40ffbc4e082 100644\n--- a/hw/pci-bridge/pci_expander_bridge.c\n+++ b/hw/pci-bridge/pci_expander_bridge.c\n@@ -85,8 +85,14 @@ static uint16_t pxb_bus_numa_node(PCIBus *bus)\n static void prop_pxb_uid_get(Object *obj, Visitor *v, const char *name,\n                              void *opaque, Error **errp)\n {\n-    uint32_t uid = pci_bus_num(PCI_BUS(obj));\n+    PCIBus *bus = PCI_BUS(obj);\n+    uint32_t uid;\n \n+    if (!bus->parent_dev) {\n+        error_setg(errp, \"bus not attached to a device\");\n+        return;\n+    }\n+    uid = pci_bus_num(bus);\n     visit_type_uint32(v, name, &uid, errp);\n }\n \n",
    "prefixes": [
        "03/41"
    ]
}