CVE-2026-99002 (GCVE-0-2026-99002)

Vulnerability from cvelistv5 – Published: 2026-10-23 12:20 – Updated: 2026-10-30 12:40
VLAI
Title
drm/vmwgfx: validate pitch coming from userspace
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: validate pitch coming from userspace Validate the pitch, alongside the box dimensions before trying to copy data from the underlying surface. Fixes possible out of bounds reads with cursor snooping.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6846 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 073437615a8da528935146ca6a17292c0ca8ce19 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < f54b41644744f72c86e44a21733ac6fc910ca133 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < cbf7616464334b217ed07b8adacaed549f2a9433 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < db6fbc2b77849e3c3c2bc115ea9ac925c4625a0d (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < f6d9c8abdf06a9c7efa799532d66ed8d5a50734c (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 76e5ddd7d9822c8c3492e0f50ba8978e093069ad (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < fcb137f6e7ed769f7ecad84364a33c451371b602 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 21bc51cb89ced74d6645a138cc2f21184bc75094 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 5.10.273 , ≤ 5.10.* (semver)
Unaffected: 5.15.224 , ≤ 5.15.* (semver)
Unaffected: 6.1.191 , ≤ 6.1.* (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.114 , ≤ 6.12.* (semver)
Unaffected: 6.18.57 , ≤ 6.18.* (semver)
Unaffected: 7.2.11 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/vmwgfx/vmwgfx_cursor_plane.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "2ac863719e518ae1a8f328849e64ea26a222f079",
              "versionType": "git"
            },
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
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              "versionType": "git"
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          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "3.2"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.273",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.224",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.114",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.273",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.224",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.191",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
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                },
                {
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                  "versionEndExcluding": "7.2.11",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: validate pitch coming from userspace\n\nValidate the pitch, alongside the box dimensions before trying\nto copy data from the underlying surface. Fixes possible\nout of bounds reads with cursor snooping."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - DRM_IOCTL_VMW_EXECBUF passes a locally supplied SVGA_3D_CMD_SURFACE_DMA through vmw_execbuf_process(), vmw_cmd_dma(), and vmw_kms_cursor_snoop(); the malformed guest.pitch and copy box originate in this ioctl, not a network protocol.\nAC:L - The attacker can create the required 64x64 A8R8G8B8 scanout surface and choose the box, pitch, and source BO. A 63x64 box with pitch 256 deterministically reaches the corrupting partial-copy loop without a race or attacker-uncontrolled condition.\nPR:L - VMW_CREATE_SURFACE, VMW_ALLOC_DMABUF, and VMW_EXECBUF are DRM_RENDER_ALLOW on a DRIVER_RENDER device; drm_ioctl_permit() therefore requires no DRM master, authentication, or capability from an unprivileged render-node client.\nUI:N - The attacker creates the surface and BO and submits the malformed DMA command through their own file descriptor; no victim must mount, open, or display anything.\nS:U - vmw_kms_cursor_snoop() corrupts the guest kernel\u0027s own cursor-snooper allocation from guest userspace. The code demonstrates neither host-memory corruption nor a guest-to-host or IOMMU-boundary escape.\nC:H - The unchecked pitch causes out-of-bounds source reads, while the attacker-controlled heap overwrite can corrupt neighboring pointer-bearing objects and be developed into arbitrary guest-kernel read primitives.\nI:H - snooper.image is a u32 pointer, but the vulnerable loop uses the 256-byte image_pitch as an element stride; a 63x64 copy writes controlled 252-byte rows at 1024-byte intervals far beyond the 16-KiB allocation, enabling control-flow hijacking.\nA:H - An excessive pitch can fault while reading beyond the TTM mapping, and the partial-copy destination bug can overwrite roughly 48 KiB beyond the snooper image, causing an oops or kernel panic."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:40:48.116Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/073437615a8da528935146ca6a17292c0ca8ce19"
        },
        {
          "url": "https://git.kernel.org/stable/c/f54b41644744f72c86e44a21733ac6fc910ca133"
        },
        {
          "url": "https://git.kernel.org/stable/c/cbf7616464334b217ed07b8adacaed549f2a9433"
        },
        {
          "url": "https://git.kernel.org/stable/c/db6fbc2b77849e3c3c2bc115ea9ac925c4625a0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6d9c8abdf06a9c7efa799532d66ed8d5a50734c"
        },
        {
          "url": "https://git.kernel.org/stable/c/76e5ddd7d9822c8c3492e0f50ba8978e093069ad"
        },
        {
          "url": "https://git.kernel.org/stable/c/fcb137f6e7ed769f7ecad84364a33c451371b602"
        },
        {
          "url": "https://git.kernel.org/stable/c/21bc51cb89ced74d6645a138cc2f21184bc75094"
        }
      ],
      "title": "drm/vmwgfx: validate pitch coming from userspace",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-99002",
    "datePublished": "2026-10-23T12:20:22.763Z",
    "dateReserved": "2026-09-25T10:25:14.385Z",
    "dateUpdated": "2026-10-30T12:40:48.116Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-99002",
      "date": "2026-11-03",
      "epss": "0.00164",
      "percentile": "0.05641"
    },
    "microsoft_vex": {
      "current_release_date": "2026-11-01T15:03:12.000Z",
      "cve": "CVE-2026-99002",
      "id": "msrc_CVE-2026-99002",
      "initial_release_date": "2026-10-25T01:03:06.000Z",
      "product_status:known_affected": "2",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/vmwgfx: validate pitch coming from userspace",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-99002.json",
      "version": "4"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/vmwgfx/vmwgfx_cursor_plane.c"
                ],
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                    "versionType": "git"
                  },
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                "vendor": "Linux",
                "versions": [
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                    "status": "affected",
                    "version": "3.2"
                  },
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                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
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                    "version": "6.1.191",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "6.6.160",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "6.12.114",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "6.18.57",
                    "versionType": "semver"
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                    "version": "7.2.11",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "7.3",
                    "versionType": "original_commit_for_fix"
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            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: validate pitch coming from userspace\n\nValidate the pitch, alongside the box dimensions before trying\nto copy data from the underlying surface. Fixes possible\nout of bounds reads with cursor snooping."
          }
        ],
        "id": "CVE-2026-99002",
        "lastModified": "2026-10-30T13:21:34.890",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-23T13:17:22.557",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/073437615a8da528935146ca6a17292c0ca8ce19"
          },
          {
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            "url": "https://git.kernel.org/stable/c/21bc51cb89ced74d6645a138cc2f21184bc75094"
          },
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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            "url": "https://git.kernel.org/stable/c/cbf7616464334b217ed07b8adacaed549f2a9433"
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            "url": "https://git.kernel.org/stable/c/db6fbc2b77849e3c3c2bc115ea9ac925c4625a0d"
          },
          {
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            "url": "https://git.kernel.org/stable/c/f54b41644744f72c86e44a21733ac6fc910ca133"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f6d9c8abdf06a9c7efa799532d66ed8d5a50734c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/fcb137f6e7ed769f7ecad84364a33c451371b602"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-29T07:17:25+00:00",
      "cve": "CVE-2026-99002",
      "id": "CVE-2026-99002",
      "initial_release_date": "2026-10-23T00:00:00+00:00",
      "product_status:known_affected": "187",
      "product_status:known_not_affected": "91",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/vmwgfx: validate pitch coming from userspace",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-99002.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-27T17:58:31Z",
      "cve": "CVE-2026-99002",
      "id": "CVE-2026-99002",
      "initial_release_date": "2026-10-23T23:51:59Z",
      "product_status:known_affected": "344",
      "product_status:known_not_affected": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-99002",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-99002.json",
      "version": "5"
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.