{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53351",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-16T16:08:59.566Z",
        "datePublished": "2025-09-17T14:56:42.006Z",
        "dateUpdated": "2026-05-11T19:43:16.129Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:43:16.129Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sched: Check scheduler work queue before calling timeout handling\n\nDuring an IGT GPU reset test we see again oops despite of\ncommit 0c8c901aaaebc9 (drm/sched: Check scheduler ready before calling\ntimeout handling).\n\nIt uses ready condition whether to call drm_sched_fault which unwind\nthe TDR leads to GPU reset.\nHowever it looks the ready condition is overloaded with other meanings,\nfor example, for the following stack is related GPU reset :\n\n0  gfx_v9_0_cp_gfx_start\n1  gfx_v9_0_cp_gfx_resume\n2  gfx_v9_0_cp_resume\n3  gfx_v9_0_hw_init\n4  gfx_v9_0_resume\n5  amdgpu_device_ip_resume_phase2\n\ndoes the following:\n\t/* start the ring */\n\tgfx_v9_0_cp_gfx_start(adev);\n\tring->sched.ready = true;\n\nThe same approach is for other ASICs as well :\ngfx_v8_0_cp_gfx_resume\ngfx_v10_0_kiq_resume, etc...\n\nAs a result, our GPU reset test causes GPU fault which calls unconditionally gfx_v9_0_fault\nand then drm_sched_fault. However now it depends on whether the interrupt service routine\ndrm_sched_fault is executed after gfx_v9_0_cp_gfx_start is completed which sets the ready\nfield of the scheduler to true even  for uninitialized schedulers and causes oops vs\nno fault or when ISR  drm_sched_fault is completed prior  gfx_v9_0_cp_gfx_start and\nNULL pointer dereference does not occur.\n\nUse the field timeout_wq  to prevent oops for uninitialized schedulers.\nThe field could be initialized by the work queue of resetting the domain.\n\nv1: Corrections to commit message (Luben)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/scheduler/sched_main.c"
                    ],
                    "versions": [
                        {
                            "version": "11b3b9f461c5c4f700f6c8da202fcc2fd6418e1f",
                            "lessThan": "c43a96fc00b662cef1ef0eb22d40441ce2abae8f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "11b3b9f461c5c4f700f6c8da202fcc2fd6418e1f",
                            "lessThan": "2da5bffe9eaa5819a868e8eaaa11b3fd0f16a691",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/scheduler/sched_main.c"
                    ],
                    "versions": [
                        {
                            "version": "6.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.4",
                            "lessThanOrEqual": "6.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.3.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.4"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c43a96fc00b662cef1ef0eb22d40441ce2abae8f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2da5bffe9eaa5819a868e8eaaa11b3fd0f16a691"
                }
            ],
            "title": "drm/sched: Check scheduler work queue before calling timeout handling",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2023-53351",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-01-14T18:41:30.253045Z"
                            }
                        }
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-908",
                                "description": "CWE-908 Use of Uninitialized Resource"
                            }
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-14T18:43:03.575Z"
                }
            }
        ]
    }
}