Vulnerability-Lookup

FKIE_CVE-2026-53356

Vulnerability from fkie_nvd - Published: 2026-07-01 14:16 - Updated: 2026-07-22 19:14

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/gem: Fix phys BO pread/pwrite with offset sg_page() returns struct page pointer not (void *) so the scaling of pread/pwrite is wrong for phys BO and wrong parts of BO would be accessed if non-zero offset is used. Last impacted platform with overlay or cursor planes using phys mapping was Gen3/945G/Lakeport. (cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/07c33be968d9e0cab6cba38c81850a09942fcb2e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/14469860e2e39b7095dcd658d2bad38a11110a68	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1ec8fc63e9cdb22da54e48e536c9204020416fc6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/32d4c5d328a3ff995420f4f85163e1e403f43628	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3bd168dd835b93a3862cd05b0d13c432b115f9d6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/40f738991058eb3e3530c3006a5bd6fd5e29f035	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d21ad938398bca695a511307de38a65889e3b354	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd51a2eeb93bc6faa892ff9083911dd23f82c187	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gem: Fix phys BO pread/pwrite with offset\n\nsg_page() returns struct page pointer not (void *) so the scaling\nof pread/pwrite is wrong for phys BO and wrong parts of BO would be\naccessed if non-zero offset is used.\n\nLast impacted platform with overlay or cursor planes using phys\nmapping was Gen3/945G/Lakeport.\n\n(cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)"
    }
  ],
  "id": "CVE-2026-53356",
  "lastModified": "2026-07-22T19:14:30.660",
  "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",
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        },
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        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
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  "published": "2026-07-01T14:16:44.733",
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    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-53356 (GCVE-0-2026-53356)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-08-05 12:35

Title

drm/i915/gem: Fix phys BO pread/pwrite with offset

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

8 references

URL	Tags
https://git.kernel.org/stable/c/40f738991058eb3e3…
https://git.kernel.org/stable/c/1ec8fc63e9cdb22da…
https://git.kernel.org/stable/c/14469860e2e39b709…
https://git.kernel.org/stable/c/07c33be968d9e0cab…
https://git.kernel.org/stable/c/3bd168dd835b93a38…
https://git.kernel.org/stable/c/32d4c5d328a3ff995…
https://git.kernel.org/stable/c/dd51a2eeb93bc6faa…
https://git.kernel.org/stable/c/d21ad938398bca695…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c6790dc22312f592c1434577258b31c48c72d52a , < 40f738991058eb3e3530c3006a5bd6fd5e29f035 (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < 1ec8fc63e9cdb22da54e48e536c9204020416fc6 (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < 14469860e2e39b7095dcd658d2bad38a11110a68 (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < 07c33be968d9e0cab6cba38c81850a09942fcb2e (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < 3bd168dd835b93a3862cd05b0d13c432b115f9d6 (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < 32d4c5d328a3ff995420f4f85163e1e403f43628 (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < dd51a2eeb93bc6faa892ff9083911dd23f82c187 (git) Affected: c6790dc22312f592c1434577258b31c48c72d52a , < d21ad938398bca695a511307de38a65889e3b354 (git)
Linux	Linux	Affected: 5.7 Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/gem/i915_gem_phys.c"
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.176",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.143",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.94",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.36",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.13",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gem: Fix phys BO pread/pwrite with offset\n\nsg_page() returns struct page pointer not (void *) so the scaling\nof pread/pwrite is wrong for phys BO and wrong parts of BO would be\naccessed if non-zero offset is used.\n\nLast impacted platform with overlay or cursor planes using phys\nmapping was Gen3/945G/Lakeport.\n\n(cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)"
        }
      ],
      "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 vulnerable path is reached through local DRM/i915 ioctls, specifically GEM pread/pwrite on a phys-backed buffer object. It is not reachable from network, adjacent, or physical device input.\nAC:L - Once on an affected legacy i915 platform with a phys-backed cursor/overlay BO, a nonzero offset reliably triggers the bad scaled pointer arithmetic. There is no race or attacker-external timing condition.\nPR:L - The attacker needs local access to the DRM device and enough ordinary DRM/KMS access to create and pin a framebuffer-backed GEM object, but not real root or CAP_SYS_ADMIN. The pread/pwrite ioctls themselves are render-allowed.\nUI:N - No victim action is required after the attacker has local DRM access. The attacker can issue the needed ioctls directly.\nS:U - The vulnerability is a kernel memory access bug reachable from a kernel driver ioctl path. It does not cross a separate security authority such as a VM host boundary.\nC:H - The faulty phys BO pread path can copy out-of-bounds kernel memory back to userspace. This is a high confidentiality impact because it can disclose kernel memory beyond the intended buffer.\nI:H - The faulty phys BO pwrite path can copy attacker-controlled data out of bounds into kernel memory relative to the coherent allocation. This is kernel memory corruption and can plausibly be leveraged for privilege escalation.\nA:H - The out-of-bounds read/write can corrupt or access invalid kernel memory and cause an oops, panic, or hang. Repeated triggering is possible through local ioctls on the affected object."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:35:05.605Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/40f738991058eb3e3530c3006a5bd6fd5e29f035"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ec8fc63e9cdb22da54e48e536c9204020416fc6"
        },
        {
          "url": "https://git.kernel.org/stable/c/14469860e2e39b7095dcd658d2bad38a11110a68"
        },
        {
          "url": "https://git.kernel.org/stable/c/07c33be968d9e0cab6cba38c81850a09942fcb2e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3bd168dd835b93a3862cd05b0d13c432b115f9d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/32d4c5d328a3ff995420f4f85163e1e403f43628"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd51a2eeb93bc6faa892ff9083911dd23f82c187"
        },
        {
          "url": "https://git.kernel.org/stable/c/d21ad938398bca695a511307de38a65889e3b354"
        }
      ],
      "title": "drm/i915/gem: Fix phys BO pread/pwrite with offset",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53356",
    "datePublished": "2026-07-01T13:32:31.428Z",
    "dateReserved": "2026-06-09T07:44:35.400Z",
    "dateUpdated": "2026-08-05T12:35:05.605Z",
    "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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.