Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before b2a23529593d011fb433a3d711fc597ed6a6bd2f; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 665315df9c3486cb213fc44d83cc8bcd47fe0d26; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 0eb1263a3b8c36418c9ba295c9ab3abed664edbf; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 796e0cac058252d0ad34ebe288e6f7979b5fc9b2; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 8977fad2b3c6eefd414131168d597c5d1d5e1abf; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before ff3d9e8f7244293e303f7b6ef70774291c7c27e9; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before aba4712e8f0381cd5d196534ce2ad082626a5ab6; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 2b5dd4632966c39da6ba74dbc8689b309065e82c |
| Linux / Linux | affected 3.3; unaffected 0 before 3.3; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.136 through 6.6.*; unaffected 6.12.83 through 6.12.*; unaffected 6.18.24 through 6.18.*; unaffected 6.19.14 through 6.19.*; unaffected 7.0.1 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- 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
ADP enrichment
No English description supplied.