wifi: iwlwifi: mvm: validate TX_CMD response layout
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX_CMD response layout TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload. For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in the aggregation handler to document that aggregated accounting is expected via BA notifications.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.191, 6.12.111, 6.18.53, 6.6.160
- CVEs
- CVE-2026-93793
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 01:41 UTC · Revision 1
Source evidence
wifi: iwlwifi: mvm: validate TX_CMD response layout
core-osv · Original sourcePublished 24 Sept 2026, 16:02 UTC
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX_CMD response layout TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload. For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in the aggregation handler to document that aggregated accounting is expected via BA notifications.
osv:CVE-2026-93793
Kernel
Fixed versions: 6.1.191, 6.6.160, 6.12.111, 6.18.53
Complete source record
{
"id": "b2c410c7c757cf38ee42053879c160497681ed56d918c00aaf76d6e24a2b0734",
"url": "https://osv.dev/vulnerability/CVE-2026-93793",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "wifi: iwlwifi: mvm: validate TX_CMD response layout",
"summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX_CMD response layout TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload. For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in the aggregation handler to document that aggregated accounting is expected via BA notifications.",
"evidence": "osv:CVE-2026-93793",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "6.1.191",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.160",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.111",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.53",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CVE-2026-93793",
"aliases": [
"CVE-2026-93793"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c"
},
{
"fixed": "658b5c00d653cdd72babc86791f6f6711190c740"
},
{
"fixed": "5e871c03506c529d5fe372d099c1ad1465c7bc38"
},
{
"fixed": "fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b"
},
{
"fixed": "4d942dfc13aec393e003ab28ff58db744c26e6eb"
},
{
"fixed": "8d70881707b47353359df57df12f6de67fdacdd2"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93793.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.9.0"
},
{
"fixed": "6.1.191"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.160"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.111"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.53"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93793.json"
}
}
],
"modified": "2026-11-01T02:30:30.669744351Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/4d942dfc13aec393e003ab28ff58db744c26e6eb",
"https://git.kernel.org/stable/c/5e871c03506c529d5fe372d099c1ad1465c7bc38",
"https://git.kernel.org/stable/c/658b5c00d653cdd72babc86791f6f6711190c740",
"https://git.kernel.org/stable/c/8d70881707b47353359df57df12f6de67fdacdd2",
"https://git.kernel.org/stable/c/fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93793.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-93793",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93793.json"
}
},
"related_cves": [
{
"value": "CVE-2026-93793",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 517061,
"published_at": "2026-09-24T16:02:26.708+00:00"
}