Race condition in Linux kernel - CVE-2026-90371
Published: September 18, 2026
Vulnerability identifier: #VU151112
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-2026-90371
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a buffer recycling race.
The vulnerability exists due to a race condition in RXDMAD_C buffer recycling in the mt76 DMA code when processing buffers from RRO data queues. A local user can trigger RXDMAD_C buffer processing to trigger a buffer recycling race.
The relevant RRO data-queue page pools are bound to a different NAPI context.
Affected software
Linux kernel
How to mitigate CVE-2026-90371
Install security update from vendor's repository.