Riskcovery

CVE-2026-43110

wifi: brcmfmac: validate bsscfg indices in IF events

State
Published
Severity
8.8 High
Published
May 6, 2026
Updated
Oct 19, 2026
Reserved
May 1, 2026

Read the record on cve.org

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]

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

  • CWE-129 Improper Validation of Array Index

Affected Products

ProductVersions
LinuxLinux
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before b329fbcf075949a038045d8e9b86ae3d5bbd8a54Affected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before 2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734Affected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before 9c81bcc2c695e0082012a2a3d36a0eefaa51579cAffected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before 3ec7437e9d11374105c2c4e47ae671537729d7e6Affected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before 9fca68c2512a362cad258e4df12a307bb2ee4b8eAffected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before 1ae1e1caa428844e481231f6dbe9b4f475f1d52dAffected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before b427c2b05222db36d32ee141609de6128e9091bbAffected
  • 2880b86859967af710c72f7d34fb421a86a71e22 to before 304950a467d83678bd0b0f46331882e2ac23b12dAffected
LinuxLinux
  • 3.9Affected
  • before 3.9Not affected
  • 5.10.258 through 5.10.*Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.136 through 6.6.*Not affected
  • 6.12.83 through 6.12.*Not affected
  • 6.18.24 through 6.18.*Not affected
  • 6.19.14 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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