wifi: ath9k: fix OOB access from firmware tx status queue ID

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: fix OOB access from firmware tx status queue ID ath_tx_edma_tasklet() accesses sc->tx.txq[ts.qid] where ts.qid is a 4-bit hardware field (0-15), but the txq array only has ATH9K_NUM_TX_QUEUES (10) entries. A qid >= 10 causes an OOB array access. Add a bounds check on ts.qid before using it as an array index.

Timeline

1. Aug 15, 2026, 5:59 AM UTCCVE published
2. Oct 16, 2026, 6:55 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Oct 16, 2026, 7:05 PM UTCRecord last updated

Affected versions

• Linux Linux

  From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in 734db72d55ca578a344dfa33e30145032c074b25; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in f5931d06b45ed402572bfe5832fff15864ef5481; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in 46ca1451f61b598f45cb5259e066d305444d95fc; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in a9e055ac62cb3fcea262d4b687ec73eed82b3379; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in 5435fd3edcb11c7cc4002847c83e9a50b49284dc; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in 336d4c8cd9b1646060ee690c881d465dfc09c6c0; From fce041beb03f93c7a771f0b4b6c45bb71ef90901 · fixed in 7ce2f118a2389e8f0a64068c6fe7cc7d40639be0

• Linux Linux

  3.1

• KernelLinux

  From 3.1.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8