Vulnerability-Lookup

FKIE_CVE-2026-93047

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Associate BOs with every job that accesses them A submission can expand into a chain of jobs (e.g. bin + render + cache clean). Implicit synchronization in v3d_submit_lock_reservations() is gated on each job's bo[], but the BO list was only ever attached to the last job of the chain. When that last job is a trailing CACHE_CLEAN job, the job that actually consumes the BOs (that is, a RENDER or CSD job) was left with bo_count == 0 and picked up no implicit dependencies. It could therefore be dispatched to the hardware and read a BO while another context was still writing it, leading to data corruption. Attach the BOs to the job that consumes them, so (1) it acquires the correct implicit dependencies during reservation locking and (2) they are kept mapped until the end of the submission. Give it references to all consuming job's BOs through v3d_job_reference_bos() instead of looking the handles up a second time; that avoids a redundant lookup and guarantees both jobs reference the exact same objects. As the CACHE_CLEAN job now carries a BO array as well, add a per-job `has_implicit_dep` flag so that only the consuming jobs take implicit dependencies. The CACHE_CLEAN job (a global flush) and the BIN job (binning waiting on another context is not a realistic scenario) are excluded.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7244dd0f12629484a1936dc5c5837670d8d9f80c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fa98563ab00dbe62fcedfef6bdd34ded7a860d9f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_drv.h",
            "drivers/gpu/drm/v3d/v3d_submit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7244dd0f12629484a1936dc5c5837670d8d9f80c",
              "status": "affected",
              "version": "dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0",
              "versionType": "git"
            },
            {
              "lessThan": "fa98563ab00dbe62fcedfef6bdd34ded7a860d9f",
              "status": "affected",
              "version": "dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_drv.h",
            "drivers/gpu/drm/v3d/v3d_submit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "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/v3d: Associate BOs with every job that accesses them\n\nA submission can expand into a chain of jobs (e.g. bin + render + cache\nclean). Implicit synchronization in v3d_submit_lock_reservations() is gated\non each job\u0027s bo[], but the BO list was only ever attached to the last job\nof the chain. When that last job is a trailing CACHE_CLEAN job, the job\nthat actually consumes the BOs (that is, a RENDER or CSD job) was left with\nbo_count == 0 and picked up no implicit dependencies. It could therefore\nbe dispatched to the hardware and read a BO while another context was still\nwriting it, leading to data corruption.\n\nAttach the BOs to the job that consumes them, so (1) it acquires the\ncorrect implicit dependencies during reservation locking and (2) they are\nkept mapped until the end of the submission. Give it references to all\nconsuming job\u0027s BOs through v3d_job_reference_bos() instead of looking the\nhandles up a second time; that avoids a redundant lookup and guarantees\nboth jobs reference the exact same objects.\n\nAs the CACHE_CLEAN job now carries a BO array as well, add a per-job\n`has_implicit_dep` flag so that only the consuming jobs take implicit\ndependencies. The CACHE_CLEAN job (a global flush) and the BIN job (binning\nwaiting on another context is not a realistic scenario) are excluded."
    }
  ],
  "id": "CVE-2026-93047",
  "lastModified": "2026-09-17T17:17:57.977",
  "metrics": {},
  "published": "2026-09-17T17:17:57.977",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7244dd0f12629484a1936dc5c5837670d8d9f80c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fa98563ab00dbe62fcedfef6bdd34ded7a860d9f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-93047 (GCVE-0-2026-93047)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:10 – Updated: 2026-09-17 16:10

Title

drm/v3d: Associate BOs with every job that accesses them

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/7244dd0f12629484a…
https://git.kernel.org/stable/c/fa98563ab00dbe62f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0 , < 7244dd0f12629484a1936dc5c5837670d8d9f80c (git) Affected: dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0 , < fa98563ab00dbe62fcedfef6bdd34ded7a860d9f (git)
Linux	Linux	Affected: 5.3 Unaffected: 0 , < 5.3 (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_drv.h",
            "drivers/gpu/drm/v3d/v3d_submit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7244dd0f12629484a1936dc5c5837670d8d9f80c",
              "status": "affected",
              "version": "dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0",
              "versionType": "git"
            },
            {
              "lessThan": "fa98563ab00dbe62fcedfef6bdd34ded7a860d9f",
              "status": "affected",
              "version": "dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_drv.h",
            "drivers/gpu/drm/v3d/v3d_submit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Associate BOs with every job that accesses them\n\nA submission can expand into a chain of jobs (e.g. bin + render + cache\nclean). Implicit synchronization in v3d_submit_lock_reservations() is gated\non each job\u0027s bo[], but the BO list was only ever attached to the last job\nof the chain. When that last job is a trailing CACHE_CLEAN job, the job\nthat actually consumes the BOs (that is, a RENDER or CSD job) was left with\nbo_count == 0 and picked up no implicit dependencies. It could therefore\nbe dispatched to the hardware and read a BO while another context was still\nwriting it, leading to data corruption.\n\nAttach the BOs to the job that consumes them, so (1) it acquires the\ncorrect implicit dependencies during reservation locking and (2) they are\nkept mapped until the end of the submission. Give it references to all\nconsuming job\u0027s BOs through v3d_job_reference_bos() instead of looking the\nhandles up a second time; that avoids a redundant lookup and guarantees\nboth jobs reference the exact same objects.\n\nAs the CACHE_CLEAN job now carries a BO array as well, add a per-job\n`has_implicit_dep` flag so that only the consuming jobs take implicit\ndependencies. The CACHE_CLEAN job (a global flush) and the BIN job (binning\nwaiting on another context is not a realistic scenario) are excluded."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:10:38.350Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7244dd0f12629484a1936dc5c5837670d8d9f80c"
        },
        {
          "url": "https://git.kernel.org/stable/c/fa98563ab00dbe62fcedfef6bdd34ded7a860d9f"
        }
      ],
      "title": "drm/v3d: Associate BOs with every job that accesses them",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93047",
    "datePublished": "2026-09-17T16:10:38.350Z",
    "dateReserved": "2026-09-17T15:57:05.658Z",
    "dateUpdated": "2026-09-17T16:10:38.350Z",
    "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.

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