Answer in brief
CVE-2026-98577 records a Unknown severity vulnerability in nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <0c83a8a45fed256ccc5fe7160b436b671fc79fb8 || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <aa555ed5ed0d15efbaf27e0e9f152a6df715278a || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8 || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <6fad2c34d451d11a9f3f946cae1105fee91d96b8 || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <bf41af8f910cbb5d776a1dfa0671d31a7e262e28 || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <0a0412745c86acd089c6460da715ab966b1615e7 || >=d646960f7986fefb460a2b062d5ccc8ccfeacc3a <408cff6bd60636df201274d320edfdfde9ed41db | 0c83a8a45fed256ccc5fe7160b436b671fc79fb8, aa555ed5ed0d15efbaf27e0e9f152a6df715278a, 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8, 6fad2c34d451d11a9f3f946cae1105fee91d96b8, bf41af8f910cbb5d776a1dfa0671d31a7e262e28, f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc, 0a0412745c86acd089c6460da715ab966b1615e7, 408cff6bd60636df201274d320edfdfde9ed41db |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() nfc_llcp_wks_sap() compares only service_name_len bytes, so a short service_name like "u" matches longer WKS strings like "urn:nfc:sn:snep". Fix by requiring exact length match before strncmp().
Quoted source text, attributed separately from HOL analysis.