CVE-2026-74408
wifi: ath9k: fix OOB access from firmware tx status queue ID
Description
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.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 15, 2026, 6:22 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-74408
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Add bounds check for firmware tx status queue ID.
- Ensure txq array indexing is within limits.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-74408.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74408 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-74408
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-74408 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74408 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': 'fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': '734db72d55ca578a344dfa33e30145032c074b25', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': 'f5931d06b45ed402572bfe5832fff15864ef5481', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': '46ca1451f61b598f45cb5259e066d305444d95fc', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': 'a9e055ac62cb3fcea262d4b687ec73eed82b3379', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': '5435fd3edcb11c7cc4002847c83e9a50b49284dc', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': '336d4c8cd9b1646060ee690c881d465dfc09c6c0', 'versionType': 'git'}, {'status': 'affected', 'version': 'fce041beb03f93c7a771f0b4b6c45bb71ef90901', 'lessThan': '7ce2f118a2389e8f0a64068c6fe7cc7d40639be0', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath9k/xmit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.1', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath9k/xmit.c'], 'defaultStatus': 'affected'}] Added Description 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. Added Reference https://git.kernel.org/stable/c/336d4c8cd9b1646060ee690c881d465dfc09c6c0 Added Reference https://git.kernel.org/stable/c/46ca1451f61b598f45cb5259e066d305444d95fc Added Reference https://git.kernel.org/stable/c/5435fd3edcb11c7cc4002847c83e9a50b49284dc Added Reference https://git.kernel.org/stable/c/734db72d55ca578a344dfa33e30145032c074b25 Added Reference https://git.kernel.org/stable/c/7ce2f118a2389e8f0a64068c6fe7cc7d40639be0 Added Reference https://git.kernel.org/stable/c/a9e055ac62cb3fcea262d4b687ec73eed82b3379 Added Reference https://git.kernel.org/stable/c/f5931d06b45ed402572bfe5832fff15864ef5481 Added Reference https://git.kernel.org/stable/c/fb11083db9d7d6fb8f98bbba1cbfcf3fb7b4bf54