CVE-2026-68190

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < b9d9a4cd2e59df7281992a076464d2536e80c674affected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < 630fdca3f2437fee3ffd437c4b646ccf84c7be87affected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < 875479f18835ac11e21a83e88f3d4dc7ccdcd0c4affected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < 23c31f107b4f8f420a754a45d12599bdb78f9bb8affected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < 0e95ff792ae0aa6fbad9455943e9e1e4062670e9affected
LinuxLinux4.12affected
LinuxLinux0 < 4.12unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc5 <= *unaffected

Weaknesses

References