Linux Kernel nouveau drm/nouveau/dmem.c nouveau_dmem_folio_split integer overflow

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.8 | $5k-$25k | 0.00 |
Summary
A vulnerability, which was classified as very critical, was found in Linux Kernel. This issue affects the function nouveau_dmem_folio_split of the file drm/nouveau/dmem.c of the component nouveau. The manipulation results in integer overflow.
This vulnerability is identified as CVE-2026-93233. The attack is only possible with local access. There is not any exploit available.
Details
A vulnerability classified as very critical has been found in Linux Kernel (affected version not known). Affected is the function nouveau_dmem_folio_split of the file drm/nouveau/dmem.c of the component nouveau. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability.
This vulnerability is traded as CVE-2026-93233. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/24/2026).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Type
Vendor
Name
License
Website
- Vendor: https://www.kernel.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.8
VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Integer overflowCWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
09/24/2026 Advisory disclosed09/24/2026 VulDB entry created
09/24/2026 VulDB entry last update
Sources
Vendor: kernel.orgStatus: Not defined
CVE: CVE-2026-93233 (🔒)
GCVE (CVE): GCVE-0-2026-93233
GCVE (VulDB): GCVE-100-409446
Entry
Created: 09/24/2026 18:07Changes: 09/24/2026 18:07 (50)
Complete: 🔍
Cache ID: 216::103
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