Improper handling of exceptional conditions in Linux kernel - CVE-2026-80930
Published: September 13, 2026
Vulnerability identifier: #VU149468
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80930
CWE-ID: CWE-755
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause an IRQ enable/disable imbalance.
The vulnerability exists due to improper handling of exceptional conditions in the TPM I2C Nuvoton driver's i2c_nuvoton_wait_for_stat() function when waiting for a TPM status interrupt times out or is interrupted. A local user can cause a wait to time out or be interrupted to cause an IRQ enable/disable imbalance.
Affected software
Linux kernel
How to mitigate CVE-2026-80930
Install security update from vendor's repository.