A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityHigh
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 1.9 → 4.7 |
| 2026-07-21 | nvd | AV: P→L, PR: H→L, UI: A→N, VA: N→H | 0.0 → 1.9 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 0.0 → 0.0 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.0 |
Affected Software
| Vendor | Product | Version |
|---|
| fedoraproject | fedora | 33 |
| linux | linux_kernel | ≥ 5.5, < 5.10.82 |
| linux | linux_kernel | ≥ 5.11, < 5.15.5 |
| linux | linux_kernel | > 2.6.12, < 5.4.162 |
| linux | linux_kernel | 2.6.12 |
| n/a | kernel | < RHEL-9 release |
| oracle | communications_cloud_native_core_binding_support_function | 22.1.3 |
| oracle | communications_cloud_native_core_network_exposure_function | 22.1.1 |
| oracle | communications_cloud_native_core_policy | 22.2.0 |
Published: 2021-11-02
