CVE-2026-98577
Unknown
Description
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().
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 18, 2026
First seenOct 18, 2026
How to fix
Update
- Linux Linux0c83a8a45fed256ccc5fe7160b436b671fc79fb8, aa555ed5ed0d15efbaf27e0e9f152a6df715278a, 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8, 6fad2c34d451d11a9f3f946cae1105fee91d96b8, bf41af8f910cbb5d776a1dfa0671d31a7e262e28, f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc, 0a0412745c86acd089c6460da715ab966b1615e7, 408cff6bd60636df201274d320edfdfde9ed41db or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < 0c83a8a45fed256ccc5fe7160b436b671fc79fb8, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < aa555ed5ed0d15efbaf27e0e9f152a6df715278a, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < 6fad2c34d451d11a9f3f946cae1105fee91d96b8, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < bf41af8f910cbb5d776a1dfa0671d31a7e262e28, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < 0a0412745c86acd089c6460da715ab966b1615e7, d646960f7986fefb460a2b062d5ccc8ccfeacc3a ≤ v < 408cff6bd60636df201274d320edfdfde9ed41db, 3.3 | 0c83a8a45fed256ccc5fe7160b436b671fc79fb8, aa555ed5ed0d15efbaf27e0e9f152a6df715278a, 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8, 6fad2c34d451d11a9f3f946cae1105fee91d96b8, bf41af8f910cbb5d776a1dfa0671d31a7e262e28, f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc, 0a0412745c86acd089c6460da715ab966b1615e7, 408cff6bd60636df201274d320edfdfde9ed41db |
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