PT-2026-37420 · Linux · Linux

Published 2026-05-06 · Updated 2026-05-06 · CVE-2026-43110

Mitre

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]

Related Identifiers

CVE-2026-43110

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-43110 · Security Note
• https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6 · Note
• https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d · Note
• https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d · Note
• https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb · Note
• https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e · Note