Disclosure summary
hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
Source-reported weakness categories
CWE-415, CWE-416
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2021-37159
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| linux | linux_kernel | * {"versionEndIncluding":"5.13.4"} |
| debian | debian_linux | 9.0 |
| 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 |
Original records & references
- NIST NVD record
- CVE Program record
- bugzilla.suse.com
- git.kernel.org
- git.kernel.org
- lists.debian.org — Mailing List, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- security.netapp.com — Third Party Advisory
- www.oracle.com — Patch, Third Party Advisory
- www.spinics.net — Mailing List, Patch, Third Party Advisory
- bugzilla.suse.com
- git.kernel.org
- git.kernel.org
- lists.debian.org — Mailing List, Third Party Advisory
- lists.debian.org — Mailing List, Third Party Advisory
- security.netapp.com — Third Party Advisory
- www.oracle.com — Patch, Third Party Advisory
- www.spinics.net — Mailing List, Patch, Third Party Advisory
PUBLISHED 2021-07-21T11:16:20-04:00
MODIFIED 2026-10-08T18:17:11-04:00
INGESTED 2026-10-10T20:50:20-04:00