CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се от съседна мрежа, без особени условия, без вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: add missing return after LLCP_CLOSED checks In nfc_llcp_recv_hdlc() and nfc_llcp_recv_disc(), when the socket state is LLCP_CLOSED, the code correctly calls release_sock() and nfc_llcp_sock_put() but fails to return. Execution falls through to the remainder of the function, which calls release_sock() and nfc_llcp_sock_put() again. This results in a double release_sock() and a refcount underflow via double nfc_llcp_sock_put(), leading to a use-after-free. Add the missing return statements after the LLCP_CLOSED branches in both functions to prevent the fall-through.
Засегнати продукти
- Linux Linux: d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди b2a23529593d011fb433a3d711fc597ed6a6bd2f; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди 665315df9c3486cb213fc44d83cc8bcd47fe0d26; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди 9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди 0eb1263a3b8c36418c9ba295c9ab3abed664edbf; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди 796e0cac058252d0ad34ebe288e6f7979b5fc9b2; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди 8977fad2b3c6eefd414131168d597c5d1d5e1abf; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди ff3d9e8f7244293e303f7b6ef70774291c7c27e9; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди aba4712e8f0381cd5d196534ce2ad082626a5ab6; d646960f7986fefb460a2b062d5ccc8ccfeacc3a преди 2b5dd4632966c39da6ba74dbc8689b309065e82c
- Linux Linux: 3.3; преди 3.3; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.136 до 6.6.*; 6.12.83 до 6.12.*; 6.18.24 до 6.18.*; 6.19.14 до 6.19.*; 7.0.1 до 7.0.*; 7.1 до *
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: преди *
История
- 24 април 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-31629
- https://nvd.nist.gov/vuln/detail/CVE-2026-31629
- https://git.kernel.org/stable/c/b2a23529593d011fb433a3d711fc597ed6a6bd2f
- https://git.kernel.org/stable/c/665315df9c3486cb213fc44d83cc8bcd47fe0d26
- https://git.kernel.org/stable/c/9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6
- https://git.kernel.org/stable/c/0eb1263a3b8c36418c9ba295c9ab3abed664edbf
- https://git.kernel.org/stable/c/796e0cac058252d0ad34ebe288e6f7979b5fc9b2
- https://git.kernel.org/stable/c/8977fad2b3c6eefd414131168d597c5d1d5e1abf
- https://git.kernel.org/stable/c/ff3d9e8f7244293e303f7b6ef70774291c7c27e9
- https://git.kernel.org/stable/c/aba4712e8f0381cd5d196534ce2ad082626a5ab6
- https://git.kernel.org/stable/c/2b5dd4632966c39da6ba74dbc8689b309065e82c
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html