CVE-2026-99050
kernel: gpio: mpsse: fix race when arming the IRQ poll worker
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 27, 2026
Description
A flaw was found in the Linux kernel's Multi-Protocol Synchronous Serial Engine (MPSSE) GPIO driver. A race condition occurs when enabling interrupt polling while disconnecting a device, allowing scheduled background work to run after the underlying device memory has been released. A local attacker could exploit this flaw to cause a Denial of Service (DoS) through a system crash or potentially corrupt system memory.
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 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference