Race condition in Linux kernel - CVE-2026-43353
Published: May 9, 2026
Vulnerability identifier: #VU130822
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43353
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a race condition in hci_dma_dequeue_xfer() in the mipi-i3c-hci driver when handling multiple transfer timeouts concurrently. A local user can trigger concurrent timeout conditions to cause a denial of service.
The issue occurs because parallel invocations may stop or restart the DMA ring at unexpected times while processing incomplete transfers.
How to mitigate CVE-2026-43353
Install security update from vendor's repository.