CVE-2026-93192 (GCVE-0-2026-93192)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:12 – Updated: 2026-09-18 17:56
VLAI
Title
drm/v3d: Clear queue->active_job when v3d_fence_create() fails
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Clear queue->active_job when v3d_fence_create() fails The run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming job to queue->active_job before calling v3d_fence_create(). If v3d_fence_create() fails, the callback returns NULL without clearing active_job, leaving a dangling pointer. Create a failure path in all run_job() callbacks that clears the active job before returning NULL. The BIN path takes queue->queue_lock around the clear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD paths have no concurrent reader, so the clear is lock-free.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < bdeb73d7312100e00c3e643ff233f09b6ec114aa (git)
Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 3a8aa74859dd73eaa76c55eb74da708e56ef51c5 (git)
Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 0b9878aba5cf93bc2b55ba9eb807757ce3239bec (git)
Affected: a783a09ee76d6259296dc6aeea2b6884fa526980 , < 25a1669907512e927fab9ad4d4fb74ff57f63cd9 (git)
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Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_sched.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bdeb73d7312100e00c3e643ff233f09b6ec114aa",
              "status": "affected",
              "version": "a783a09ee76d6259296dc6aeea2b6884fa526980",
              "versionType": "git"
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              "lessThan": "3a8aa74859dd73eaa76c55eb74da708e56ef51c5",
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              "versionType": "git"
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              "versionType": "git"
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              "status": "affected",
              "version": "a783a09ee76d6259296dc6aeea2b6884fa526980",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_sched.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": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "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": "6.12.110",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "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: Clear queue-\u003eactive_job when v3d_fence_create() fails\n\nThe run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming\njob to queue-\u003eactive_job before calling v3d_fence_create(). If\nv3d_fence_create() fails, the callback returns NULL without clearing\nactive_job, leaving a dangling pointer.\n\nCreate a failure path in all run_job() callbacks that clears the active\njob before returning NULL. The BIN path takes queue-\u003equeue_lock around the\nclear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD\npaths have no concurrent reader, so the clear is lock-free."
        }
      ],
      "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 dangling queue-\u003eactive_job is created in v3d_bin_job_run/v3d_render_job_run/v3d_tfu_job_run/v3d_csd_job_run after DRM_IOCTL_V3D_SUBMIT_CL (v3d_submit_cl_ioctl), DRM_IOCTL_V3D_SUBMIT_TFU, or DRM_IOCTL_V3D_SUBMIT_CSD on /dev/dri/renderD* queues a job through v3d_push_job; the trigger is that local ioctl, not a remote protocol message.\nAC:L - v3d_fence_create() fails only on kzalloc of struct v3d_fence; the attacker submits the job first so ioctl-time allocations succeed, then applies memory pressure so the scheduler worker hits GFP_KERNEL ENOMEM, and can also drive v3d_overflow_mem_work via a BCL that raises V3D_INT_OUTOMEM, controlling both the failure and the UAF consumer.\nPR:L - v3d_submit_cl_ioctl/v3d_submit_tfu_ioctl/v3d_submit_csd_ioctl are DRM_RENDER_ALLOW|DRM_AUTH with no capable() check; drm_ioctl_permit() treats render-node clients as authenticated, so an unprivileged Raspberry Pi/video-group user (or GPU-passthrough container) with /dev/dri/renderD* can reach the run_job callbacks.\nUI:N - The attacker opens the render node and issues their own SUBMIT_CL/SUBMIT_TFU/SUBMIT_CSD ioctls plus memory pressure; no other user must mount media, open a file, or otherwise interact.\nS:U - The use-after-free is of a host-kernel v3d_job left in queue-\u003eactive_job and later used by v3d_overflow_mem_work/v3d_irq_signal_fence, which is local kernel heap corruption/privilege escalation, not a KVM/Xen escape or IOMMU/DMA boundary bypass.\nC:H - After drm_sched_job_done/v3d_sched_job_free kfree\u0027s the job, v3d_overflow_mem_work still reads bin_job-\u003erender and v3d_irq_signal_fence reads active_job-\u003eirq_fence and stats from the freed slab, so heap reuse of the v3d_job yields an arbitrary kernel read.\nI:H - v3d_overflow_mem_work does list_add_tail(\u0026bo-\u003eunref_head, \u0026bin_job-\u003erender-\u003eunref_list) through the freed job, so spraying a replacement v3d_bin_job with a chosen render pointer is an arbitrary list-write; v3d_job_update_stats() likewise writes into the freed object.\nA:H - Dereferencing the dangling queue-\u003eactive_job in v3d_irq_signal_fence (IRQ context) or v3d_overflow_mem_work after v3d_job_free() oopses or panics the kernel, matching other v3d active-job UAFs that produced fatal exceptions in v3d_irq()."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T17:56:28.889Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bdeb73d7312100e00c3e643ff233f09b6ec114aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a8aa74859dd73eaa76c55eb74da708e56ef51c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b9878aba5cf93bc2b55ba9eb807757ce3239bec"
        },
        {
          "url": "https://git.kernel.org/stable/c/25a1669907512e927fab9ad4d4fb74ff57f63cd9"
        }
      ],
      "title": "drm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93192",
    "datePublished": "2026-09-17T16:12:16.428Z",
    "dateReserved": "2026-09-17T16:02:15.092Z",
    "dateUpdated": "2026-09-18T17:56:28.889Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-93192",
      "date": "2026-09-25",
      "epss": "0.00175",
      "percentile": "0.06222"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-24T02:20:44.000Z",
      "cve": "CVE-2026-93192",
      "id": "msrc_CVE-2026-93192",
      "initial_release_date": "2026-09-19T01:08:47.000Z",
      "product_status:known_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/v3d: Clear queue-\u003eactive_job when v3d_fence_create() fails",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-93192.json",
      "version": "4"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/v3d/v3d_sched.c"
                ],
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                    "versionType": "git"
                  },
                  {
                    "lessThan": "25a1669907512e927fab9ad4d4fb74ff57f63cd9",
                    "status": "affected",
                    "version": "a783a09ee76d6259296dc6aeea2b6884fa526980",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/v3d/v3d_sched.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"
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                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
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                    "versionType": "semver"
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                    "lessThanOrEqual": "6.18.*",
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                    "version": "6.18.52",
                    "versionType": "semver"
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                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.6",
                    "versionType": "semver"
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                  {
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                    "status": "unaffected",
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                    "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: Clear queue-\u003eactive_job when v3d_fence_create() fails\n\nThe run_job() callbacks for BIN, RENDER, TFU and CSD assign the incoming\njob to queue-\u003eactive_job before calling v3d_fence_create(). If\nv3d_fence_create() fails, the callback returns NULL without clearing\nactive_job, leaving a dangling pointer.\n\nCreate a failure path in all run_job() callbacks that clears the active\njob before returning NULL. The BIN path takes queue-\u003equeue_lock around the\nclear as it races against v3d_overflow_mem_work(); RENDER, TFU and CSD\npaths have no concurrent reader, so the clear is lock-free."
          }
        ],
        "id": "CVE-2026-93192",
        "lastModified": "2026-09-18T18:18:24.610",
        "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": "2026-09-17T17:18:15.447",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/0b9878aba5cf93bc2b55ba9eb807757ce3239bec"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/25a1669907512e927fab9ad4d4fb74ff57f63cd9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/bdeb73d7312100e00c3e643ff233f09b6ec114aa"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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  • 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.



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