net: airoha: fix BQL imbalance in TX path
CVE-2026-52983 · published 24 Jun 2026
How serious is it
- Severity: high, CVSS score 7.5 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-52983?
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Who is affected
- Linux Linux: ca24fcac1daaa5e8a667981d81986a3eb4b9fb04 to < fcd6a3bb48bb661876c2743e89f0a6567f5cea2c, 1d304174106c93ce05f6088813ad7203b3eb381a to < aaad53a55812acd2355c0e5478896381e78b0110, 1d304174106c93ce05f6088813ad7203b3eb381a to < ded2694247a55a16d0ebbe2d6f9139305c21457a, 1d304174106c93ce05f6088813ad7203b3eb381a to < 2d9f5a118205da2683ffcec78b9347f1f01a820e
- Linux Linux: 6.13
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
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References
- git.kernel.org/stable/c/fcd6a3bb48bb661876c2743e89f0a6567f5cea2c
- git.kernel.org/stable/c/aaad53a55812acd2355c0e5478896381e78b0110
- git.kernel.org/stable/c/ded2694247a55a16d0ebbe2d6f9139305c21457a
- git.kernel.org/stable/c/2d9f5a118205da2683ffcec78b9347f1f01a820e
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON