{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53112",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-05-02T15:51:43.554Z",
        "datePublished": "2025-05-02T15:55:51.733Z",
        "dateUpdated": "2026-05-11T19:38:44.566Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:38:44.566Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/sseu: fix max_subslices array-index-out-of-bounds access\n\nIt seems that commit bc3c5e0809ae (\"drm/i915/sseu: Don't try to store EU\nmask internally in UAPI format\") exposed a potential out-of-bounds\naccess, reported by UBSAN as following on a laptop with a gen 11 i915\ncard:\n\n  UBSAN: array-index-out-of-bounds in drivers/gpu/drm/i915/gt/intel_sseu.c:65:27\n  index 6 is out of range for type 'u16 [6]'\n  CPU: 2 PID: 165 Comm: systemd-udevd Not tainted 6.2.0-9-generic #9-Ubuntu\n  Hardware name: Dell Inc. XPS 13 9300/077Y9N, BIOS 1.11.0 03/22/2022\n  Call Trace:\n   <TASK>\n   show_stack+0x4e/0x61\n   dump_stack_lvl+0x4a/0x6f\n   dump_stack+0x10/0x18\n   ubsan_epilogue+0x9/0x3a\n   __ubsan_handle_out_of_bounds.cold+0x42/0x47\n   gen11_compute_sseu_info+0x121/0x130 [i915]\n   intel_sseu_info_init+0x15d/0x2b0 [i915]\n   intel_gt_init_mmio+0x23/0x40 [i915]\n   i915_driver_mmio_probe+0x129/0x400 [i915]\n   ? intel_gt_probe_all+0x91/0x2e0 [i915]\n   i915_driver_probe+0xe1/0x3f0 [i915]\n   ? drm_privacy_screen_get+0x16d/0x190 [drm]\n   ? acpi_dev_found+0x64/0x80\n   i915_pci_probe+0xac/0x1b0 [i915]\n   ...\n\nAccording to the definition of sseu_dev_info, eu_mask->hsw is limited to\na maximum of GEN_MAX_SS_PER_HSW_SLICE (6) sub-slices, but\ngen11_sseu_info_init() can potentially set 8 sub-slices, in the\n!IS_JSL_EHL(gt->i915) case.\n\nFix this by reserving up to 8 slots for max_subslices in the eu_mask\nstruct.\n\n(cherry picked from commit 3cba09a6ac86ea1d456909626eb2685596c07822)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/i915/gt/intel_sseu.h"
                    ],
                    "versions": [
                        {
                            "version": "bc3c5e0809ae9faa039baf75547e8ee46ec124ef",
                            "lessThan": "1a1682abf7399318ac074b1f2ac6a8c992b5b3da",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bc3c5e0809ae9faa039baf75547e8ee46ec124ef",
                            "lessThan": "36b076ab6247cf0d2135b2ad6bb337617c3b5a1b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bc3c5e0809ae9faa039baf75547e8ee46ec124ef",
                            "lessThan": "193c41926d152761764894f46e23b53c00186a82",
                            "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/i915/gt/intel_sseu.h"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.21",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.8",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "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": "6.0",
                                    "versionEndExcluding": "6.1.21"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.2.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1a1682abf7399318ac074b1f2ac6a8c992b5b3da"
                },
                {
                    "url": "https://git.kernel.org/stable/c/36b076ab6247cf0d2135b2ad6bb337617c3b5a1b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/193c41926d152761764894f46e23b53c00186a82"
                }
            ],
            "title": "drm/i915/sseu: fix max_subslices array-index-out-of-bounds access",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}