In the Linux kernel, the following vulnerability has been resolved:
i3c: mipi-i3c-hci: Fix race in DMA ring dequeue
The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for
multiple transfers that timeout around the same time. However, the
function is not serialized and can race with itself.
When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes
incomplete transfers, and then restarts the ring. If another timeout
triggers a parallel call into the same function, the two instances may
interfere with each other - stopping or restarting the ring at unexpected
times.
Add a mutex so that hci_dma_dequeue_xfer() is serialized with respect to
itself.
| Score | Percentile |
|---|---|
| 0.01% | 1.70% |
| Base score | Version | Severity | Vector |
|---|---|---|---|
| 7.8 | 3.1 | — |
|
| Type | Value |
|---|---|
| GHSA | GHSA-473v-h78r-2j73 ↗ |
| CVE | CVE-2026-43353 ↗ |
| CWE id | Name |
|---|---|
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') |