{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-38664",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: zynqmp_dpsub: Always register bridge\n\nWe must always register the DRM bridge, since zynqmp_dp_hpd_work_func\ncalls drm_bridge_hpd_notify, which in turn expects hpd_mutex to be\ninitialized. We do this before zynqmp_dpsub_drm_init since that calls\ndrm_bridge_attach. This fixes the following lockdep warning:\n\n[   19.217084] ------------[ cut here ]------------\n[   19.227530] DEBUG_LOCKS_WARN_ON(lock->magic != lock)\n[   19.227768] WARNING: CPU: 0 PID: 140 at kernel/locking/mutex.c:582 __mutex_lock+0x4bc/0x550\n[   19.241696] Modules linked in:\n[   19.244937] CPU: 0 PID: 140 Comm: kworker/0:4 Not tainted 6.6.20+ #96\n[   19.252046] Hardware name: xlnx,zynqmp (DT)\n[   19.256421] Workqueue: events zynqmp_dp_hpd_work_func\n[   19.261795] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   19.269104] pc : __mutex_lock+0x4bc/0x550\n[   19.273364] lr : __mutex_lock+0x4bc/0x550\n[   19.277592] sp : ffffffc085c5bbe0\n[   19.281066] x29: ffffffc085c5bbe0 x28: 0000000000000000 x27: ffffff88009417f8\n[   19.288624] x26: ffffff8800941788 x25: ffffff8800020008 x24: ffffffc082aa3000\n[   19.296227] x23: ffffffc080d90e3c x22: 0000000000000002 x21: 0000000000000000\n[   19.303744] x20: 0000000000000000 x19: ffffff88002f5210 x18: 0000000000000000\n[   19.311295] x17: 6c707369642e3030 x16: 3030613464662072 x15: 0720072007200720\n[   19.318922] x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 0000000000000001\n[   19.326442] x11: 0001ffc085c5b940 x10: 0001ff88003f388b x9 : 0001ff88003f3888\n[   19.334003] x8 : 0001ff88003f3888 x7 : 0000000000000000 x6 : 0000000000000000\n[   19.341537] x5 : 0000000000000000 x4 : 0000000000001668 x3 : 0000000000000000\n[   19.349054] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff88003f3880\n[   19.356581] Call trace:\n[   19.359160]  __mutex_lock+0x4bc/0x550\n[   19.363032]  mutex_lock_nested+0x24/0x30\n[   19.367187]  drm_bridge_hpd_notify+0x2c/0x6c\n[   19.371698]  zynqmp_dp_hpd_work_func+0x44/0x54\n[   19.376364]  process_one_work+0x3ac/0x988\n[   19.380660]  worker_thread+0x398/0x694\n[   19.384736]  kthread+0x1bc/0x1c0\n[   19.388241]  ret_from_fork+0x10/0x20\n[   19.392031] irq event stamp: 183\n[   19.395450] hardirqs last  enabled at (183): [<ffffffc0800b9278>] finish_task_switch.isra.0+0xa8/0x2d4\n[   19.405140] hardirqs last disabled at (182): [<ffffffc081ad3754>] __schedule+0x714/0xd04\n[   19.413612] softirqs last  enabled at (114): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c\n[   19.423128] softirqs last disabled at (110): [<ffffffc080133de8>] srcu_invoke_callbacks+0x158/0x23c\n[   19.432614] ---[ end trace 0000000000000000 ]---\n\n(cherry picked from commit 61ba791c4a7a09a370c45b70a81b8c7d4cf6b2ae)"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "eb2d64bfcc17",
                                            "version_value": "6ead3eccf67b"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.2",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.2",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.33",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.9.4",
                                                        "lessThanOrEqual": "6.9.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.10",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/6ead3eccf67bc8318b1ce95ed879b2cc05b4fce9"
            },
            {
                "url": "https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/603661357056b5e5ba6d86f505fbc936eff396ba"
            },
            {
                "url": "https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/be3f3042391d061cfca2bd22630e0d101acea5fc"
            }
        ]
    },
    "generator": {
        "engine": "bippy-c9c4e1df01b2"
    }
}