CVE-2021-37159
kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 2, 2020
Updated · October 9, 2026
Description
A flaw use-after-free in the Linux kernel USB High Speed Mobile Devices functionality was found in the way user detaches USB device. A local user could use this flaw to crash the system or escalate their privileges on the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
To mitigate this issue, prevent the module hso from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.
CVSS / CWE
CVSS 3.1 · 6.4CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free