CVE-2026-93047

Status: ReceivedUnscored—

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.

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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.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.20%
Percentile among all scored CVEs: 9
Score date: 10/4/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-93047",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0",
              "lessThan": "7244dd0f12629484a1936dc5c5837670d8d9f80c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dffa9b7a78c4361e55e21b3acb54e0d34ad15ea0",
              "lessThan": "fa98563ab00dbe62fcedfef6bdd34ded7a860d9f",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_drv.h",
            "drivers/gpu/drm/v3d/v3d_submit.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_drv.h",
            "drivers/gpu/drm/v3d/v3d_submit.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:57.977",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/7244dd0f12629484a1936dc5c5837670d8d9f80c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fa98563ab00dbe62fcedfef6bdd34ded7a860d9f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "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's 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's 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."
    }
  ],
  "lastModified": "2026-09-17T17:17:57.977",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}