wifi: b43legacy: enforce bounds check on firmware key index in RX path
In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.
CVE-2026-46163
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-2026-46163
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": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "a92bd0503df2488f2cc040f329ebccff1c1934cb",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "df805c1d085b7a96077f0964185764c87060950d",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "4242db36de99de734cc1f60e5edd86cda7e598c6",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "1baaeb6adecb9691748c0253dab6ddd19a2b4e9e",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "6ee946077607d7783ae6709a899213fc4fe08f35",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "9d1bc155802943e92c57a5fb923d23edfbf0b525",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5",
"versionType": "git"
},
{
"status": "affected",
"version": "75388acd0cd827dc1498043daa7d1c760902cd67",
"lessThan": "a035766f970bde2d4298346a31a80685be5c0205",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/broadcom/b43legacy/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": "2.6.24"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.24",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.258",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.209",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.175",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.140",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.88",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.30",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.7",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/broadcom/b43legacy/xmit.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46163
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28399 · Revision 1
- Added to Heist Feed
- Publisher date