CVE-2026-93278
kernel: staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
Severity
ModerateRed Hat Product Security
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference