{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-99003",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.385Z",
        "datePublished": "2026-10-23T12:20:24.476Z",
        "dateUpdated": "2026-10-23T12:20:24.476Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-23T12:20:24.476Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: validate userspace queue count against initialized firmware slot count\n\nIn panthor_drv.c:panthor_ioctl_group_create(),\nthe queue count is validated against the hardcoded maximum:\n\n\tif (!args->queues.count || args->queues.count > MAX_CS_PER_CSG)\n\t\treturn -EINVAL;\n\nHowever, if the firmware reports fewer slots than MAX_CS_PER_CSG,\npanthor_fw_init_ifaces() will only initialize that smaller number of\nstream interfaces.\n\nIf unprivileged userspace requests more queues than the firmware reported\n(but no more than MAX_CS_PER_CSG), cs_slot_prog_locked() fetches an\nuninitialized stream interface and may crash when dereferencing\ncs_iface->input->ringbuf_base."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/panthor/panthor_sched.c"
                    ],
                    "versions": [
                        {
                            "version": "de85488138247d034eb3241840424a54d660926b",
                            "lessThan": "4487cf79bf173f2b426a02d102076f8a20d23b96",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "de85488138247d034eb3241840424a54d660926b",
                            "lessThan": "fdee3570b282a6c8699aea63fa5694355e010ec9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "de85488138247d034eb3241840424a54d660926b",
                            "lessThan": "9be126be5f78bc331a930295af97c9b1f9158f06",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "de85488138247d034eb3241840424a54d660926b",
                            "lessThan": "ec86c43dcfff68eab4db9bdafcd3e2b16e342e18",
                            "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/panthor/panthor_sched.c"
                    ],
                    "versions": [
                        {
                            "version": "6.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.11",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.10",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "6.18.57"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "7.2.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4487cf79bf173f2b426a02d102076f8a20d23b96"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18"
                }
            ],
            "title": "drm/panthor: validate userspace queue count against initialized firmware slot count",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}