wifi: ath9k: fix OOB access from firmware tx status queue ID
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.
CVE-2026-74408
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74408
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"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",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/ath/ath9k/xmit.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74408
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #33142 · Revision 1
- Added to Heist Feed
- Publisher date