{"id":"CVE-2026-89591","title":"accel/rocket: initialize job domain before cleanup paths","summary":"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…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-476"],"vendor":"Linux","product":"Linux","affected":["Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 3043230296653a609ab50006899e64bbb2d99465","Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 81731f1eda5e6a1dfad31445f741de9bbefbb08e","Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 70e6a33d68a9b03335c5426332666e52d07f45d6","Linux 6.18"],"published":"2026-09-11","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:49:23.816Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89591","references":[{"url":"https://git.kernel.org/stable/c/3043230296653a609ab50006899e64bbb2d99465"},{"url":"https://git.kernel.org/stable/c/81731f1eda5e6a1dfad31445f741de9bbefbb08e"},{"url":"https://git.kernel.org/stable/c/70e6a33d68a9b03335c5426332666e52d07f45d6"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89591.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89591"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532212"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89591"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89591"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89591.mbox"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00206,"epssPercentile":0.10642,"ingestedAt":"2026-09-14T11:11:19.886Z","slug":"CVE-2026-89591","body":"## Overview\n\nIn 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->domain), but job->domain 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->tasks after freeing it in rocket_copy_tasks(), so\nthe common cleanup path cannot free the task array again after a task-copy\nerror.\n\n## Affected\n\n- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 3043230296653a609ab50006899e64bbb2d99465`\n- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 81731f1eda5e6a1dfad31445f741de9bbefbb08e`\n- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 70e6a33d68a9b03335c5426332666e52d07f45d6`\n- `Linux 6.18`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89591.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204061,"id":"CVE-2026-89591","ts":1789490231246,"field":"cvss","old":null,"new":"5.5"},{"seq":204060,"id":"CVE-2026-89591","ts":1789490231246,"field":"severity","old":"none","new":"medium"},{"seq":147554,"id":"CVE-2026-89591","ts":1789270211362,"field":"cvss","old":null,"new":"5.5"},{"seq":147553,"id":"CVE-2026-89591","ts":1789270211362,"field":"severity","old":"none","new":"medium"},{"seq":109306,"id":"CVE-2026-89591","ts":1789183731360,"field":"cvss","old":null,"new":"5.5"},{"seq":109305,"id":"CVE-2026-89591","ts":1789183731360,"field":"severity","old":"none","new":"medium"}]}