---
id: CVE-2026-52983
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: airoha: fix BQL imbalance in TX path

  Fix a possible BQL imbalance in airoha_dev_xmit(), where inflight
  packets are accounted only for the AIROHA_NUM_TX_RING netde…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: airoha: fix BQL imbalance in TX path

  Fix a possible BQL imbalance in airoha_dev_xmit(), where inflight
  packets are accounted only for the AIROHA_NUM_TX_RING netde…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
published: '2026-06-24'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52983'
references:
  - url: 'https://git.kernel.org/stable/c/2d9f5a118205da2683ffcec78b9347f1f01a820e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/aaad53a55812acd2355c0e5478896381e78b0110'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ded2694247a55a16d0ebbe2d6f9139305c21457a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00609
epssPercentile: 0.46926
ingestedAt: '2026-07-11T13:13:25.474Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

net: airoha: fix BQL imbalance in TX path

Fix a possible BQL imbalance in airoha_dev_xmit(), where inflight
packets are accounted only for the AIROHA_NUM_TX_RING netdev TX
queues. The queue index is computed as:

    qid = skb_get_queue_mapping(skb) % ARRAY_SIZE(qdma->q_tx)
    txq = netdev_get_tx_queue(dev, qid);

However, airoha_qdma_tx_napi_poll() accounts completions across all
netdev TX queues (num_tx_queues), leading to inconsistent BQL
accounting.

Also reset all netdev TX queues in the ndo_stop callback.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.