Vulnerability-Lookup

FKIE_CVE-2026-72452

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/i915: clear CRTC color blob pointers after dropping refs intel_crtc_put_color_blobs() drops the CRTC color blob references, but leaves the corresponding pointers unchanged. This can matter in intel_crtc_prepare_cleared_state(), which frees the old CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw(). The latter can fail while looking up the DP tunnel group state, for example with -EDEADLK. If that happens, the function returns without completing the cleared state preparation. The failed atomic state will then be cleared by the atomic core and intel_crtc_free_hw_state() can be called again for the same state, dropping the same blob references again. Clear the blob pointers after dropping the references so repeated cleanup of the same CRTC hw state is safe. (cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2024940522ef451098c940ab0b82d647de5e5d9b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/31f077088e0faae6be8377741f356dea1b94ba46
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ac554ad943610031a25795d6ef71316f6164c136

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0",
              "status": "affected",
              "version": "9a6cbb4a5c168e94a69a0cbec572b3738205232b",
              "versionType": "git"
            },
            {
              "lessThan": "2024940522ef451098c940ab0b82d647de5e5d9b",
              "status": "affected",
              "version": "8581466b827fdf0300a3e2e93900ddefd8240053",
              "versionType": "git"
            },
            {
              "lessThan": "ac554ad943610031a25795d6ef71316f6164c136",
              "status": "affected",
              "version": "77fcf58df15edcf3f5b5421f24814fb72796def9",
              "versionType": "git"
            },
            {
              "lessThan": "31f077088e0faae6be8377741f356dea1b94ba46",
              "status": "affected",
              "version": "77fcf58df15edcf3f5b5421f24814fb72796def9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "674fc4a50b667be65c947d81af63a9367deafb5c",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.97",
              "status": "affected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.40",
              "status": "affected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThan": "6.20",
              "status": "affected",
              "version": "6.19.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: clear CRTC color blob pointers after dropping refs\n\nintel_crtc_put_color_blobs() drops the CRTC color blob references, but\nleaves the corresponding pointers unchanged.\n\nThis can matter in intel_crtc_prepare_cleared_state(), which frees the\nold CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw().\nThe latter can fail while looking up the DP tunnel group state, for\nexample with -EDEADLK.\n\nIf that happens, the function returns without completing the cleared\nstate preparation. The failed atomic state will then be cleared by the\natomic core and intel_crtc_free_hw_state() can be called again for the\nsame state, dropping the same blob references again.\n\nClear the blob pointers after dropping the references so repeated cleanup\nof the same CRTC hw state is safe.\n\n(cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)"
    }
  ],
  "id": "CVE-2026-72452",
  "lastModified": "2026-08-17T06:19:12.797",
  "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": "2026-08-15T06:22:19.183",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2024940522ef451098c940ab0b82d647de5e5d9b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31f077088e0faae6be8377741f356dea1b94ba46"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ac554ad943610031a25795d6ef71316f6164c136"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-72452 (GCVE-0-2026-72452)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:44

Title

drm/i915: clear CRTC color blob pointers after dropping refs

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/164afa1a3af8e8c91…
https://git.kernel.org/stable/c/2024940522ef45109…
https://git.kernel.org/stable/c/ac554ad943610031a…
https://git.kernel.org/stable/c/31f077088e0faae6b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9a6cbb4a5c168e94a69a0cbec572b3738205232b , < 164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0 (git) Affected: 8581466b827fdf0300a3e2e93900ddefd8240053 , < 2024940522ef451098c940ab0b82d647de5e5d9b (git) Affected: 77fcf58df15edcf3f5b5421f24814fb72796def9 , < ac554ad943610031a25795d6ef71316f6164c136 (git) Affected: 77fcf58df15edcf3f5b5421f24814fb72796def9 , < 31f077088e0faae6be8377741f356dea1b94ba46 (git) Affected: 674fc4a50b667be65c947d81af63a9367deafb5c (git) Affected: 6.12.80 , < 6.12.97 (semver) Affected: 6.18.21 , < 6.18.40 (semver) Affected: 6.19.11 , < 6.20 (semver)
Linux	Linux	Affected: 7.0 Unaffected: 0 , < 7.0 (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0",
              "status": "affected",
              "version": "9a6cbb4a5c168e94a69a0cbec572b3738205232b",
              "versionType": "git"
            },
            {
              "lessThan": "2024940522ef451098c940ab0b82d647de5e5d9b",
              "status": "affected",
              "version": "8581466b827fdf0300a3e2e93900ddefd8240053",
              "versionType": "git"
            },
            {
              "lessThan": "ac554ad943610031a25795d6ef71316f6164c136",
              "status": "affected",
              "version": "77fcf58df15edcf3f5b5421f24814fb72796def9",
              "versionType": "git"
            },
            {
              "lessThan": "31f077088e0faae6be8377741f356dea1b94ba46",
              "status": "affected",
              "version": "77fcf58df15edcf3f5b5421f24814fb72796def9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "674fc4a50b667be65c947d81af63a9367deafb5c",
              "versionType": "git"
            },
            {
              "lessThan": "6.12.97",
              "status": "affected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.40",
              "status": "affected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThan": "6.20",
              "status": "affected",
              "version": "6.19.11",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/display/intel_atomic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.12.80",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.18.21",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.19.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: clear CRTC color blob pointers after dropping refs\n\nintel_crtc_put_color_blobs() drops the CRTC color blob references, but\nleaves the corresponding pointers unchanged.\n\nThis can matter in intel_crtc_prepare_cleared_state(), which frees the\nold CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw().\nThe latter can fail while looking up the DP tunnel group state, for\nexample with -EDEADLK.\n\nIf that happens, the function returns without completing the cleared\nstate preparation. The failed atomic state will then be cleared by the\natomic core and intel_crtc_free_hw_state() can be called again for the\nsame state, dropping the same blob references again.\n\nClear the blob pointers after dropping the references so repeated cleanup\nof the same CRTC hw state is safe.\n\n(cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)"
        }
      ],
      "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 - The bug is reached only through the i915 DRM atomic commit path (DRM_IOCTL_MODE_ATOMIC on /dev/dri/card*), which calls intel_atomic_check() -\u003e intel_crtc_prepare_cleared_state() -\u003e intel_crtc_free_hw_state(); this is local ioctl access to the display driver, not a network protocol.\nAC:L - Triggering the failure requires a modeset atomic commit on a CRTC with color blobs and an active DP tunnel reference; intel_dp_tunnel_atomic_clear_stream_bw() can return -EDEADLK from drm_atomic_get_private_obj_state(), and an attacker can force that ww_mutex deadlock with concurrent atomic ioctl threads they control.\nPR:L - Exploitation needs DRM master on the primary DRM node to issue atomic modesets; on Intel client systems this is held by the session compositor or obtainable by a local session user with /dev/dri/card0 access, which is standard unprivileged desktop privilege rather than init-namespace root.\nUI:N - No victim interaction is required beyond the attacker issuing their own DRM atomic property/modeset ioctl sequences to set CRTC color blobs and provoke the failing DP tunnel cleanup path.\nS:U - The double-free corrupts kernel heap drm_property_blob objects inside the i915 display driver; impact stays within kernel memory management and does not inherently cross a VM/host or sandbox security boundary without separate exploitation.\nC:H - intel_crtc_put_color_blobs() can drop the same drm_property_blob references twice because pointers are not cleared after the first put; this double-free/use-after-free of heap objects can expose kernel memory contents and is scored as arbitrary read potential per UAF guidance.\nI:H - Repeated drm_property_blob_put() on stale pointers causes refcount underflow and slab freelist corruption on kvzalloc-backed blobs, providing a standard kernel heap corruption primitive that can be leveraged for arbitrary write or code execution.\nA:H - The refcount double-free during failed atomic state cleanup can immediately panic/oops the kernel or destabilize the allocator; any successful trigger causes high availability impact even before full exploitation."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:44:21.920Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0"
        },
        {
          "url": "https://git.kernel.org/stable/c/2024940522ef451098c940ab0b82d647de5e5d9b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ac554ad943610031a25795d6ef71316f6164c136"
        },
        {
          "url": "https://git.kernel.org/stable/c/31f077088e0faae6be8377741f356dea1b94ba46"
        }
      ],
      "title": "drm/i915: clear CRTC color blob pointers after dropping refs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72452",
    "datePublished": "2026-08-15T05:57:00.234Z",
    "dateReserved": "2026-08-09T03:40:39.931Z",
    "dateUpdated": "2026-08-17T05:44:21.920Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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FKIE_CVE-2026-72452

CVE-2026-72452 (GCVE-0-2026-72452)

Tags

Sightings

Nomenclature