CVE-2026-98617
kernel: eth: fbnic: use the Rx queue napi pointer to find the napi vector
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 21, 2026
Description
A flaw was found in the Linux kernel's Meta Host Network Interface (fbnic) driver. The driver incorrectly associates receive queues with network processing vectors and fails to verify whether the datapath is active before allocating queue memory. A privileged local user could trigger this flaw during network queue reconfiguration or device recovery operations, causing the system to access previously freed memory and leading to a Denial of Service (DoS) via a kernel crash.
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 · 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference