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.
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Score 6.4 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 6.4; sources differ by 0.0.
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.
July 21, 2021
November 21, 2024
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-oem-20.04c (5.13.0.1014.18) @ focal | 2026-05-26 | ubuntu |
| ubuntu | linux-image-lowlatency (5.11.0.37.39) @ hirsute | 2026-05-26 | ubuntu |
| ubuntu | linux-modules-5.4.0-1047-raspi (5.4.0-1047.52) @ focal | 2026-05-26 | ubuntu |
| ubuntu | linux-virtual-hwe-16.04-edge (4.15.0.163.152) @ bionic | 2026-05-26 | ubuntu |
| ubuntu | linux-image-lowlatency (4.4.0.223.230) @ xenial | 2026-05-26 | ubuntu |
| ubuntu | linux-modules-5.11.0-1017-azure (5.11.0-1017.18) @ hirsute | 2026-05-26 | ubuntu |
| ubuntu | linux-virtual (3.13.0.199.209) @ trusty | 2026-05-26 | ubuntu |
| ubuntu | linux-tools-oem-20.04-edge (5.10.0.1050.52) @ focal | 2026-05-26 | ubuntu |
| redhat | kernel-0:4.18.0-372.9.1.el8 | 2022-05-10 | redhat |
| redhat | kernel-rt-0:4.18.0-372.9.1.rt7.166.el8 | 2022-05-10 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
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.
RHSA-2022:1975 — Moderate
RHSA-2022:1988 — Moderate
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel (OEM) vulnerabilities
Linux kernel (OEM) vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
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