Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-98081
Published: September 28, 2026
Vulnerability identifier: #VU152377
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-98081
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of exceptional conditions in the btrfs zoned block group cleanup logic when handling a zone-finish operation that fails. A local user can cause a zone-finish operation to fail to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-98081
Install security update from vendor's repository.