CVE-2026-68190staging: rtl8723bs: fix OOB reads in rtw_get_wps_ie()

Official description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in rtw_get_wps_ie() rtw_get_wps_ie() iterates over IE data from network frames without validating that the IE header and payload fit within the remaining buffer before reading them. Specifically: - in_ie[cnt + 1] is read without checking cnt + 1 < in_len - memcmp(&in_ie[cnt + 2], ...) accesses cnt + 2 without bounds check - in_ie[cnt + 1] is used as length without verifying payload fits Add bounds checks at the top of the loop body to break early if fewer than 2 bytes remain for the IE header, or if the declared payload extends past the end of the buffer. Also require at least 4 bytes of payload before comparing the WPS OUI.

Affected packages & fixed versions

Affected products (as reported)

References

• https://git.kernel.org/stable/c/c670efe69ec8a3360bfa596436f0250a3bf15d42
• https://git.kernel.org/stable/c/23b630e334f7e8f76bb22a18aca350da995af905
• https://git.kernel.org/stable/c/b9d9a4cd2e59df7281992a076464d2536e80c674
• https://git.kernel.org/stable/c/630fdca3f2437fee3ffd437c4b646ccf84c7be87
• https://git.kernel.org/stable/c/875479f18835ac11e21a83e88f3d4dc7ccdcd0c4
• https://git.kernel.org/stable/c/23c31f107b4f8f420a754a45d12599bdb78f9bb8
• https://git.kernel.org/stable/c/0e95ff792ae0aa6fbad9455943e9e1e4062670e9