CVE Database›Document archive›CVE-2026-93278

CVE-2026-93278

kernel: staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 24, 2026

Updated · September 28, 2026

Description

A flaw was found in the Linux kernel's Octeon network driver. During interface shutdown, the driver deletes the packet polling mechanism without properly disabling it first, allowing active polling routines to continue running after interrupt handlers are released. A local attacker could exploit this race condition during device removal or shutdown to trigger a use-after-free error when memory is freed, resulting in a system crash and Denial of Service (DoS).

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference