{"id":"CVE-2026-89590","title":"accel/rocket: Fix error path handling in rocket_job_run()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: Fix error path handling in rocket_job_run()\n\nIn rocket_job_run(), after taking an extra fence reference for\njob->done_fence via dma_fence_get(), the error…","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-911"],"vendor":"Linux","product":"Linux","affected":["Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 9ad8821573a36bcd18c84dbca3027802b0ea062f","Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 7d6fa298c23495b805004f5f446497b661998fa5","Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 9b2dedadf6a91ac3fc9fae268bb556a041222711","Linux 6.18"],"published":"2026-09-11","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:49:22.866Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89590","references":[{"url":"https://git.kernel.org/stable/c/9ad8821573a36bcd18c84dbca3027802b0ea062f"},{"url":"https://git.kernel.org/stable/c/7d6fa298c23495b805004f5f446497b661998fa5"},{"url":"https://git.kernel.org/stable/c/9b2dedadf6a91ac3fc9fae268bb556a041222711"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89590.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89590"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532024"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89590"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89590"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89590.mbox"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00206,"epssPercentile":0.10639,"ingestedAt":"2026-09-14T11:11:19.886Z","slug":"CVE-2026-89590","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: Fix error path handling in rocket_job_run()\n\nIn rocket_job_run(), after taking an extra fence reference for\njob->done_fence via dma_fence_get(), the error paths have three bugs:\n\n- The dma_fence reference held by job->done_fence is never released,\n  causing a reference leak.\n- pm_runtime_get_sync() increments the usage counter even on failure,\n  but the error path does not decrement it, leaking the runtime PM\n  reference and preventing the NPU from suspending.\n- A valid but unsignaled fence is returned to the DRM scheduler,\n  which triggers WARN(\"Fence ... released with pending signals!\")\n  when the scheduler drops its reference.\n\nFix by replacing pm_runtime_get_sync() with pm_runtime_resume_and_get()\nwhich auto-balances the usage counter on failure, releasing both fence\nreferences on error, and returning ERR_PTR(ret) instead of the\nunsignaled fence.\n\n[tomeu: Refactored error paths to use consolidated goto labels]\n\n## Affected\n\n- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 9ad8821573a36bcd18c84dbca3027802b0ea062f`\n- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 7d6fa298c23495b805004f5f446497b661998fa5`\n- `Linux >= 0810d5ad88a18f1e6d549853a388ad0316f74e36 < 9b2dedadf6a91ac3fc9fae268bb556a041222711`\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 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89590.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":202798,"id":"CVE-2026-89590","ts":1789403723180,"field":"cvss","old":null,"new":"5.5"},{"seq":202797,"id":"CVE-2026-89590","ts":1789403723180,"field":"severity","old":"none","new":"medium"},{"seq":109610,"id":"CVE-2026-89590","ts":1789183732611,"field":"cvss","old":null,"new":"4.7"},{"seq":109609,"id":"CVE-2026-89590","ts":1789183732611,"field":"severity","old":"none","new":"medium"}]}