{"id":"CVE-2026-23330","title":"nfc: nci: complete pending data exchange on device close","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: complete pending data exchange on device close\n\nIn nci_close_device(), complete any pending data exchange before\nclosing. The data exchange callback (e.g.\nraw…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 75fdb22ef0635c02337de0c08c98f93f37b5cbee","Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 9df613ef6e8e873cdab969a11f74823488977f1f","Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 702029337b057085ea13f964822dcd95e0fe53f5","Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 91ff0d8c3464da7f0c43da38c195e60b660128bf","Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < d05f55d68ebdebb2b0a8480d766eaae88c8c92de","Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 66083581945bd5b8e99fe49b5aeb83d03f62d053","Linux 3.2"],"published":"2026-03-25","updated":"2026-10-30","sourceUpdated":"2026-10-30T12:23:57.014Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23330","references":[{"url":"https://git.kernel.org/stable/c/75fdb22ef0635c02337de0c08c98f93f37b5cbee"},{"url":"https://git.kernel.org/stable/c/9df613ef6e8e873cdab969a11f74823488977f1f"},{"url":"https://git.kernel.org/stable/c/702029337b057085ea13f964822dcd95e0fe53f5"},{"url":"https://git.kernel.org/stable/c/91ff0d8c3464da7f0c43da38c195e60b660128bf"},{"url":"https://git.kernel.org/stable/c/d05f55d68ebdebb2b0a8480d766eaae88c8c92de"},{"url":"https://git.kernel.org/stable/c/66083581945bd5b8e99fe49b5aeb83d03f62d053"}],"tags":["cve.org"],"epss":0.00127,"epssPercentile":0.02418,"ingestedAt":"2026-11-05T15:02:32.201Z","slug":"CVE-2026-23330","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: complete pending data exchange on device close\n\nIn nci_close_device(), complete any pending data exchange before\nclosing. The data exchange callback (e.g.\nrawsock_data_exchange_complete) holds a socket reference.\n\nNIPA occasionally hits this leak:\n\nunreferenced object 0xff1100000f435000 (size 2048):\n  comm \"nci_dev\", pid 3954, jiffies 4295441245\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    27 00 01 40 00 00 00 00 00 00 00 00 00 00 00 00  '..@............\n  backtrace (crc ec2b3c5):\n    __kmalloc_noprof+0x4db/0x730\n    sk_prot_alloc.isra.0+0xe4/0x1d0\n    sk_alloc+0x36/0x760\n    rawsock_create+0xd1/0x540\n    nfc_sock_create+0x11f/0x280\n    __sock_create+0x22d/0x630\n    __sys_socket+0x115/0x1d0\n    __x64_sys_socket+0x72/0xd0\n    do_syscall_64+0x117/0xfc0\n    entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\n## Affected\n\n- `Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 75fdb22ef0635c02337de0c08c98f93f37b5cbee`\n- `Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 9df613ef6e8e873cdab969a11f74823488977f1f`\n- `Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 702029337b057085ea13f964822dcd95e0fe53f5`\n- `Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 91ff0d8c3464da7f0c43da38c195e60b660128bf`\n- `Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < d05f55d68ebdebb2b0a8480d766eaae88c8c92de`\n- `Linux >= 38f04c6b1b682f1879441e2925403ad9aff9e229 < 66083581945bd5b8e99fe49b5aeb83d03f62d053`\n- `Linux 3.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}