{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80702",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.786Z",
        "datePublished": "2026-08-28T06:53:05.253Z",
        "dateUpdated": "2026-08-28T06:53:05.253Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-28T06:53:05.253Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: fix guest_memory_dirty bitfield clobbered as size\n\nTwo sites in vmwgfx_resource.c assign boolean literals to\nres->guest_memory_size, which is an unsigned long allocation-size\nfield; the intended target is the adjacent res->guest_memory_dirty\nbitfield.  After the assignments the field holds 0 or 1 instead of\nthe resource's MOB allocation size:\n\n  - vmw_resource_release()       writes 0 (false), and\n  - vmw_resource_unbind_list()   writes 1 (true).\n\nSubsequent revalidation paths read guest_memory_size when computing\nthe dirty page range (vmw_bo_dirty_transfer_to_res()) and the buffer\nallocation size (vmw_resource_buf_alloc()), producing zero-length\nwalks or wrap-around ranges that read or write past the MOB bitmap.\nThe dirty-tracking intent of the original code (mark the resource as\ndirtied since the last sync) is also lost, since guest_memory_dirty\nis never updated.\n\nRename both assignments to guest_memory_dirty."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/vmwgfx/vmwgfx_resource.c"
                    ],
                    "versions": [
                        {
                            "version": "668b206601c5f5063e03b76784a0d3024fa2b249",
                            "lessThan": "21bbe38faee4a195d33a93e3908e307807f7745d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "668b206601c5f5063e03b76784a0d3024fa2b249",
                            "lessThan": "9d6cbb76fe9cd760351f6b0b20f1bf788eab8fa6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "668b206601c5f5063e03b76784a0d3024fa2b249",
                            "lessThan": "282f261cb035e5f01a486f76d356b7e9dbfba73f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "668b206601c5f5063e03b76784a0d3024fa2b249",
                            "lessThan": "3b2bb16a5b622867140d69925db411ac8ecb3b2b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "668b206601c5f5063e03b76784a0d3024fa2b249",
                            "lessThan": "83195b778f2d109a3a4f3ffaba4dce7e4cdb58aa",
                            "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/vmwgfx/vmwgfx_resource.c"
                    ],
                    "versions": [
                        {
                            "version": "6.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.151",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.103",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.4",
                                    "versionEndExcluding": "6.6.151"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "6.12.103"
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                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "6.18.44"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "7.1.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.4",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/21bbe38faee4a195d33a93e3908e307807f7745d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9d6cbb76fe9cd760351f6b0b20f1bf788eab8fa6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/282f261cb035e5f01a486f76d356b7e9dbfba73f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3b2bb16a5b622867140d69925db411ac8ecb3b2b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/83195b778f2d109a3a4f3ffaba4dce7e4cdb58aa"
                }
            ],
            "title": "drm/vmwgfx: fix guest_memory_dirty bitfield clobbered as size",
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}