CVE-2026-80930
kernel: tpm: tpm_i2c_nuvoton: disable IRQ on wait timeout
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 11, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's TPM I2C Nuvoton driver. The i2c_nuvoton_wait_for_stat() function enables an interrupt (IRQ) but fails to disable it if the wait operation times out or is interrupted. This oversight can lead to an unbalanced IRQ state, potentially causing system instability or resource exhaustion, which could result in a Denial of Service (DoS).
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime