CVE-2026-98185

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: mwifiex: validate scan response extents

mwifiex_ret_802_11_scan() subtracts the fixed response fields and the firmware-provided BSS length from resp->size without first proving that either extent fits. A short response or oversized BSS length can therefore underflow tlv_buf_size and make the TLV parser walk beyond the command response.

Compute the fixed extent from the selected normal or background scan response. Validate that the fixed fields and BSS data fit before deriving the TLV extent and entering the parser.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 25217c5f6ce0bf3004f80c129464cd35fe9a420faffected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 48312f0085aa1577d6d41af2a079b34de17c1a57affected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < dccf5ecaad4d8d43c545921f20328e8f91af8698affected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < c4943323fda22ef27bb6479b9d328ae48c63f64caffected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < cb0008480ed7d5cf76f3ad9668a91bbb7d0b4417affected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 9cff2f39ed38a32070b08364c4c9346e85b8f9ecaffected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 7106ad8b74f50cca1ef36131f327d2c78f556daaaffected
LinuxLinux5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e < 3687d7d48070838cc2953431b3a27717cab0aaf6affected
LinuxLinux3.0affected
LinuxLinux0 < 3.0unaffected
LinuxLinux5.10.271 <= 5.10.*unaffected
LinuxLinux5.15.222 <= 5.15.*unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.158 <= 6.6.*unaffected
LinuxLinux6.12.112 <= 6.12.*unaffected
LinuxLinux6.18.54 <= 6.18.*unaffected
LinuxLinux7.2.8 <= 7.2.*unaffected
LinuxLinux7.3-rc4 <= *unaffected

Weaknesses

References