Description
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.
Published: 2026-05-28
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

No vendor fix or workaround currently provided.

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History

Thu, 11 Jun 2026 00:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125

Wed, 10 Jun 2026 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-129
CPEs cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Mon, 01 Jun 2026 17:00:00 +0000


Fri, 29 May 2026 00:15:00 +0000


Thu, 28 May 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125

Thu, 28 May 2026 10:15:00 +0000

Type Values Removed Values Added
Description 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.
Title wifi: b43legacy: enforce bounds check on firmware key index in RX path
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-14T17:59:18.913Z

Reserved: 2026-05-13T15:03:33.102Z

Link: CVE-2026-46163

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-28T10:16:31.950

Modified: 2026-06-10T21:13:41.730

Link: CVE-2026-46163

cve-icon Redhat

Severity :

Publid Date: 2026-05-28T00:00:00Z

Links: CVE-2026-46163 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-11T02:30:02Z

Weaknesses