CVE-2026-98697
kernel: USB: serial: fix dynamic id driver deregistration race
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 22, 2026
Description
A flaw was found in the Linux kernel's USB serial subsystem. A race condition during USB serial driver deregistration can result in a kernel memory leak. A local user with permissions to modify driver attributes can trigger this issue by writing to the dynamic identifier interface while the driver is being unregistered, leaving newly allocated identifiers unfreed.
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
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 1.9CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
CWE-772 · Missing Release of Resource after Effective Lifetime