CVE-2022-28388
kernel: double free in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 4, 2022
Updated · June 28, 2026
Description
A double-free flaw was found in the Linux kernel's USB2CAN interface implementation. This issue could allow a local user to crash the system.
Statement
This issue is Moderate because this case doesn't lead to a kernel crash as result of the pointers reference check preventing actual second memory free. The only known attack scenario is the possibility of a denial of service.
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 module usb_8dev from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-415 · Double Free