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CVE-2026-89591 (GCVE-0-2026-89591)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:44 – Updated: 2026-09-11 19:44
VLAI
Title
accel/rocket: initialize job domain before cleanup paths
Summary
In the Linux kernel, the following vulnerability has been resolved: accel/rocket: initialize job domain before cleanup paths rocket_ioctl_submit_job() releases rjob through rocket_job_put() on allocation error paths. rocket_job_cleanup() unconditionally calls rocket_iommu_domain_put(job->domain), but job->domain is assigned only after task copying and BO lookups. A failure before that assignment can therefore clean up a job with a NULL domain pointer. Take the per-file domain reference before the first error path can release rjob. Also clear rjob->tasks after freeing it in rocket_copy_tasks(), so the common cleanup path cannot free the task array again after a task-copy error.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0810d5ad88a18f1e6d549853a388ad0316f74e36 , < 3043230296653a609ab50006899e64bbb2d99465 (git)
Affected: 0810d5ad88a18f1e6d549853a388ad0316f74e36 , < 81731f1eda5e6a1dfad31445f741de9bbefbb08e (git)
Affected: 0810d5ad88a18f1e6d549853a388ad0316f74e36 , < 70e6a33d68a9b03335c5426332666e52d07f45d6 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.50 , ≤ 6.18.* (semver)
Unaffected: 7.2.4 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/accel/rocket/rocket_job.c"
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: initialize job domain before cleanup paths\n\nrocket_ioctl_submit_job() releases rjob through rocket_job_put() on\nallocation error paths. rocket_job_cleanup() unconditionally calls\nrocket_iommu_domain_put(job-\u003edomain), but job-\u003edomain is assigned only\nafter task copying and BO lookups. A failure before that assignment can\ntherefore clean up a job with a NULL domain pointer.\n\nTake the per-file domain reference before the first error path can release\nrjob. Also clear rjob-\u003etasks after freeing it in rocket_copy_tasks(), so\nthe common cleanup path cannot free the task array again after a task-copy\nerror."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T19:44:55.080Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/3043230296653a609ab50006899e64bbb2d99465"
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          "url": "https://git.kernel.org/stable/c/81731f1eda5e6a1dfad31445f741de9bbefbb08e"
        },
        {
          "url": "https://git.kernel.org/stable/c/70e6a33d68a9b03335c5426332666e52d07f45d6"
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      ],
      "title": "accel/rocket: initialize job domain before cleanup paths",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89591",
    "datePublished": "2026-09-11T19:44:55.080Z",
    "dateReserved": "2026-09-11T19:38:34.730Z",
    "dateUpdated": "2026-09-11T19:44:55.080Z",
    "state": "PUBLISHED"
  },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-15T04:55:59+00:00",
      "cve": "CVE-2026-89591",
      "id": "CVE-2026-89591",
      "initial_release_date": "2026-09-11T19:44:55.080000+00:00",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: NULL pointer dereference in accel/rocket module",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89591.json",
      "version": "3"
    }
  }
}



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