In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: validate bsscfg indices in IF events

brcmf_fweh_handle_if_event() validates the firmware-provided interface
index before it touches drvr->iflist[], but it still uses the raw
bsscfgidx field as an array index without a matching range check.

Reject IF events whose bsscfg index does not fit in drvr->iflist[]
before indexing the interface array.

[add missing wifi prefix]

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History

Wed, 06 May 2026 09:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: validate bsscfg indices in IF events brcmf_fweh_handle_if_event() validates the firmware-provided interface index before it touches drvr->iflist[], but it still uses the raw bsscfgidx field as an array index without a matching range check. Reject IF events whose bsscfg index does not fit in drvr->iflist[] before indexing the interface array. [add missing wifi prefix]
Title wifi: brcmfmac: validate bsscfg indices in IF events
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-06T07:40:37.250Z

Reserved: 2026-05-01T14:12:55.986Z

Link: CVE-2026-43110

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-06T10:16:24.690

Modified: 2026-05-06T10:16:24.690

Link: CVE-2026-43110

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-06T12:30:03Z

Weaknesses

No weakness.