CVE-2026-98577
nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 18, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
d646960f7986fefb460a2b062d5ccc8ccfeacc3a < 0c83a8a45fed256ccc5fe7160b436b671fc79fb8 d646960f7986fefb460a2b062d5ccc8ccfeacc3a < aa555ed5ed0d15efbaf27e0e9f152a6df715278a d646960f7986fefb460a2b062d5ccc8ccfeacc3a < 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8 d646960f7986fefb460a2b062d5ccc8ccfeacc3a < 6fad2c34d451d11a9f3f946cae1105fee91d96b8 d646960f7986fefb460a2b062d5ccc8ccfeacc3a < bf41af8f910cbb5d776a1dfa0671d31a7e262e28 d646960f7986fefb460a2b062d5ccc8ccfeacc3a < f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc d646960f7986fefb460a2b062d5ccc8ccfeacc3a < 0a0412745c86acd089c6460da715ab966b1615e7 d646960f7986fefb460a2b062d5ccc8ccfeacc3a < 408cff6bd60636df201274d320edfdfde9ed41db
Linux / Linux
3.3
References
git.kernel.org: https://git.kernel.org/stable/c/0c83a8a45fed256ccc5fe7160b436b671fc79fb8 git.kernel.org: https://git.kernel.org/stable/c/aa555ed5ed0d15efbaf27e0e9f152a6df715278a git.kernel.org: https://git.kernel.org/stable/c/32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8 git.kernel.org: https://git.kernel.org/stable/c/6fad2c34d451d11a9f3f946cae1105fee91d96b8 git.kernel.org: https://git.kernel.org/stable/c/bf41af8f910cbb5d776a1dfa0671d31a7e262e28 git.kernel.org: https://git.kernel.org/stable/c/f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc git.kernel.org: https://git.kernel.org/stable/c/0a0412745c86acd089c6460da715ab966b1615e7 git.kernel.org: https://git.kernel.org/stable/c/408cff6bd60636df201274d320edfdfde9ed41db