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CVE-2026-43110 is an array-index validation vulnerability in the Linux kernel's brcmfmac Wi-Fi driver. The brcmf_fweh_handle_if_event() function validates the firmware-provided interface index but uses the separate bsscfgidx field to index the driver's interface array without an equivalent bounds check. A firmware interface event containing an out-of-range BSS configuration index can therefore cause an out-of-bounds array access. The fix rejects such events before accessing the interface array.
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A Linux kernel brcmfmac Wi-Fi driver vulnerability involving validation of bsscfg indices in interface events. Affected Rocky Linux 10.2 kernel packages have security updates available.
A vulnerability addressed by the referenced CentOS 7/TuxCare advisory; no technical flaw details are provided.
Linux kernel Broadcom brcmfmac Wi-Fi driver flaw caused by insufficient validation of bsscfg indices in interface events.
An insufficient BSS configuration-index validation issue in the brcmfmac Wi-Fi driver interface-event handling.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.