CVE-2026-52983

net: airoha: fix BQL imbalance in TX path

HIGH
7.5
CVSS Score
Published: June 24, 2026 at 04:28 PM UTC
Updated: October 21, 2026 at 01:19 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.12.91 ≤ v < 6.18.336.19 ≤ v < 7.0.101d304174106c93ce05f6088813ad7203b3eb381a6.12.917.17.1 rc1ca24fcac1daaa5e8a667981d81986a3eb4b9fb04
Vendor states this is fixed in 2d9f5a118205da2683ffcec78b9347f1f01a820e (fixed)
Vendor states this is fixed in aaad53a55812acd2355c0e5478896381e78b0110 (fixed)
Vendor states this is fixed in ded2694247a55a16d0ebbe2d6f9139305c21457a (fixed)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.18.33 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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