{"cve":"CVE-2026-89802","nvd":{"published":"2026-09-16T11:16:45.113","modified":"2026-10-21T13:20:27.783","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/uvmm: fix NULL deref unwinding an OP_MAP_SPARSE op\n\nEach bind_job_op is zeroed by kzalloc_obj() in bind_job_op_from_uop(),\nand the OP_MAP_SPARSE case in nouveau_uvmm_bind_job_submit() only creates\na region, so op->ops stays NULL for a successfully processed sparse map.\n\nIf a later op in the same job fails, the reverse unwind loop revisits that\nop and calls drm_gpuva_ops_free(&uvmm->base, op->ops) unconditionally.\ndrm_gpuva_ops_free() dereferences its argument right away\n(list_for_each_entry_safe on &ops->list), so a NULL op->ops oopses. The\npath is reachable by any render-node fd holder, since NOUVEAU_VM_BIND is\nDRM_RENDER_ALLOW.\n\nGuard the free with IS_ERR_OR_NULL(), as nouveau_uvmm_bind_job_cleanup()\nalready does for the identical free.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3857238de6bce6c1573e8cb86c37b067e5208f05","https://git.kernel.org/stable/c/3bf493cf7ed0c2b3df728977a257e0d99b4db1c6","https://git.kernel.org/stable/c/412a6ceb56d501ef2f8202e26ab4b5d4dfbca566","https://git.kernel.org/stable/c/b7dc03e09313d22a6d230b759de3b05d504c008f","https://git.kernel.org/stable/c/d8ec34618e71018fd7a3f73c57c6b92d71a6c7c3"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-89802","score":0.00201,"percentile":0.09821,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}