CVE-2026-89802drm/nouveau/uvmm: fix NULL deref unwinding an OP_MAP_SPARSE op
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/uvmm: fix NULL deref unwinding an OP_MAP_SPARSE op Each bind_job_op is zeroed by kzalloc_obj() in bind_job_op_from_uop(), and the OP_MAP_SPARSE case in nouveau_uvmm_bind_job_submit() only creates a region, so op->ops stays NULL for a successfully processed sparse map. If a later op in the same job fails, the reverse unwind loop revisits that op and calls drm_gpuva_ops_free(&uvmm->base, op->ops) unconditionally. drm_gpuva_ops_free() dereferences its argument right away (list_for_each_entry_safe on &ops->list), so a NULL op->ops oopses. The path is reachable by any render-node fd holder, since NOUVEAU_VM_BIND is DRM_RENDER_ALLOW. Guard the free with IS_ERR_OR_NULL(), as nouveau_uvmm_bind_job_cleanup() already does for the identical free.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b88baab828713ce0b49b185444b2ee83bed373a8 before 3bf493cf7ed0c2b3df728977a257e0d99b4db1c6; from b88baab828713ce0b49b185444b2ee83bed373a8 before b7dc03e09313d22a6d230b759de3b05d504c008f; from b88baab828713ce0b49b185444b2ee83bed373a8 before 3857238de6bce6c1573e8cb86c37b067e5208f05; from b88baab828713ce0b49b185444b2ee83bed373a8 before 412a6ceb56d501ef2f8202e26ab4b5d4dfbca566 | CNA record |
References
- https://git.kernel.org/stable/c/3bf493cf7ed0c2b3df728977a257e0d99b4db1c6
- https://git.kernel.org/stable/c/b7dc03e09313d22a6d230b759de3b05d504c008f
- https://git.kernel.org/stable/c/3857238de6bce6c1573e8cb86c37b067e5208f05
- https://git.kernel.org/stable/c/412a6ceb56d501ef2f8202e26ab4b5d4dfbca566
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.