CVE-2026-23313

MEDIUM

i40e: Fix preempt count leak in napi poll tracepoint

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix preempt count leak in napi poll tracepoint Using get_cpu() in the tracepoint assignment causes an obvious preempt count leak because nothing invokes put_cpu() to undo it: softirq: huh, entered softirq 3 NET_RX with preempt_count 00000100, exited with 00000101? This clearly has seen a lot of testing in the last 3+ years... Use smp_processor_id() instead.

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0012
EPSS Percentile 2.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (20)
linux/Kernel 6.13.0 - 6.18.17linux
linux/Kernel 6.19.0 - 6.19.7linux
linux/Kernel 6.2.0 - 6.12.77linux
linux/Kernel 6.2.0 - 6.6.136linux
linux/Kernel 6.7.0 - 6.12.77linux
Linux/Linux < 6.2
Linux/Linux 6.12.77 - 6.12.*
Linux/Linux 6.18.17 - 6.18.*
Linux/Linux 6.19.7 - 6.19.*
Linux/Linux 6.2
... and 10 more
Published Mar 25, 2026
Tracked Since Mar 25, 2026