wifi: b43: enforce bounds check on firmware key index in b43_rx()
In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read. Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.
CVE-2026-46122
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-2026-46122
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": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "135cb49c9a42a02cceeac7b49ec03e267f7ed6d6",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "3157ad40b084a8f3932da2641749ab45e99b933e",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "765709720e6af9a178abc40244a8d1aa39ac4e71",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "c3d7b90dc95020cd9282c4630e402fe224f7644e",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "d7029879bafdac2006c67553807d122283dc6cbf",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "219ba67e69e49681e48c822d6eaafb5def032f34",
"versionType": "git"
},
{
"status": "affected",
"version": "e4d6b7951812d98417feb10784e400e253caf633",
"lessThan": "1f4f78bf8549e6ac4f04fba4176854f3a6e0c332",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/broadcom/b43/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/b43/xmit.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46122
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28391 · Revision 1
- Added to Heist Feed
- Publisher date