Bug 2516901 (CVE-2026-74408) - CVE-2026-74408 kernel: wifi: ath9k: fix OOB access from firmware tx status queue ID
Summary: CVE-2026-74408 kernel: wifi: ath9k: fix OOB access from firmware tx status qu...
Keywords:
Status: NEW
Alias: CVE-2026-74408
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:39 UTC by OSIDB Bzimport
Modified: 2026-08-20 21:18 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-15 06:39:25 UTC
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.


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