CVE-2026-43110
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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]
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < b329fbcf075949a038045d8e9b86ae3d5bbd8a54 | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < 2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734 | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < 9c81bcc2c695e0082012a2a3d36a0eefaa51579c | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < 3ec7437e9d11374105c2c4e47ae671537729d7e6 | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < 9fca68c2512a362cad258e4df12a307bb2ee4b8e | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < 1ae1e1caa428844e481231f6dbe9b4f475f1d52d | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < b427c2b05222db36d32ee141609de6128e9091bb | affected |
| Linux | Linux | 2880b86859967af710c72f7d34fb421a86a71e22 < 304950a467d83678bd0b0f46331882e2ac23b12d | affected |
| Linux | Linux | 3.9 | affected |
| Linux | Linux | 0 < 3.9 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.136 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.83 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.24 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.14 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b329fbcf075949a038045d8e9b86ae3d5bbd8a54
- https://git.kernel.org/stable/c/2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734
- https://git.kernel.org/stable/c/9c81bcc2c695e0082012a2a3d36a0eefaa51579c
- https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6
- https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e
- https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d
- https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb
- https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d
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