In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix dynamic id driver deregistration race Only free the dynamic ids… (CVE-2026-98697)
Description
A race condition vulnerability in the Linux kernel's USB serial driver related to dynamic ID driver deregistration has been resolved. The fix ensures that dynamic IDs are only freed after the driver is deregistered and the 'new_id' attribute is removed, preventing potential ID leaks caused by racing writes to the attribute.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel USB serial subsystem involved a race condition during dynamic ID driver deregistration. Specifically, dynamic IDs could be freed prematurely before the driver was fully deregistered and the 'new_id' attribute removed. This could lead to leaking IDs added by concurrent writes racing with deregistration. The issue has been fixed by changing the order of operations to only free dynamic IDs after deregistration and attribute removal.
Potential Impact
The vulnerability could result in leaking dynamic IDs due to a race condition during driver deregistration. There is no information about exploitation in the wild or further impact such as privilege escalation or denial of service.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this race condition. Users should update to the fixed kernel version once available. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-5qfj-x2wc-wcf3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-98697"]
Threat ID: 6ad520ac2cdf04f656993a24
Added to database: 10/18/2026, 19:40:28 UTC
Last enriched: 10/18/2026, 22:27:28 UTC
Last updated: 10/19/2026, 01:48:12 UTC
Views: 2
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