wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers rsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and data[24] whenever key data is present. Those offsets are only part of the 32-byte TKIP key layout. Shorter keys used by other ciphers, such as CCMP, do not provide those bytes, so the unconditional copies can read past the supplied key buffer. Only copy the MIC keys for TKIP, and reject malformed TKIP keys that are shorter than the expected 32-byte layout. [drop useless length check]
CVE-2026-93807
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-2026-93807
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": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "6937b06d55b528e961feff8cc083b97ede622e02",
"versionType": "git"
},
{
"status": "affected",
"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "ebd7172f8c4edc232738ef50338fb773c6f6c208",
"versionType": "git"
},
{
"status": "affected",
"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "6b6690ac5c35e803df14afdc44312d11e8a60893",
"versionType": "git"
},
{
"status": "affected",
"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "5207727e53fba1e3a6fce9b2c15b6b8b06c6438b",
"versionType": "git"
},
{
"status": "affected",
"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "5902e3c08c63d65724772f74d65b9fb032625dca",
"versionType": "git"
},
{
"status": "affected",
"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "55b86ef6c2e68879ffd95203b011ef42a013ab88",
"versionType": "git"
},
{
"status": "affected",
"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
"lessThan": "843fe9bc583b7686ca68312ac9319c9240a73c03",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/rsi/rsi_91x_mgmt.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/rsi/rsi_91x_mgmt.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93807
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8284 · Revision 1
- Added to Heist Feed
- Publisher date