CVE-2026-43324
kernel: USB: dummy-hcd: Fix interrupt synchronization error
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Severity
LowRed Hat Product Security
CVSS
Review impact separately from score.
Published · May 8, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's dummy-hcd driver. This vulnerability stems from an interrupt synchronization error where emulated interrupts can occur after the system attempts to synchronize interrupt handlers. This timing issue creates a race condition, potentially allowing a callback handler to execute when the associated gadget driver is no longer bound, which could lead to system instability or unexpected behavior.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-364 · Signal Handler Race Condition