{"id":"CVE-2026-23339","revision":"197ec0865d384aa1b71661b367683cf3","records":[{"revision":"197ec0865d384aa1b71661b367683cf3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23339","aliases":[],"title":"nfc: nci: free skb on nci_transceive early error paths","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: free skb on nci_transceive early error paths\n\nnci_transceive() takes ownership of the skb passed by the caller,\nbut the -EPROTO, -EINVAL, and -EBUSY error paths return without\nfreeing it.\n\nDue to issues clearing NCI_DATA_EXCHANGE fixed by subsequent changes\nthe nci/nci_dev selftest hits the error path occasionally in NIPA,\nand kmemleak detects leaks:\n\nunreferenced object 0xff11000015ce6a40 (size 640):\n  comm \"nci_dev\", pid 3954, jiffies 4295441246\n  hex dump (first 32 bytes):\n    6b 6b 6b 6b 00 a4 00 0c 02 e1 03 6b 6b 6b 6b 6b  kkkk.......kkkkk\n    6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\n  backtrace (crc 7c40cc2a):\n    kmem_cache_alloc_node_noprof+0x492/0x630\n    __alloc_skb+0x11e/0x5f0\n    alloc_skb_with_frags+0xc6/0x8f0\n    sock_alloc_send_pskb+0x326/0x3f0\n    nfc_alloc_send_skb+0x94/0x1d0\n    rawsock_sendmsg+0x162/0x4c0\n    do_syscall_64+0x117/0xfc0","state":0,"publishedAt":"2026-03-25T10:27:28.073+00:00","modifiedAt":"2026-10-15T01:14:10.367+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/nfc/nci/core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"b367cb44d919f35b07cd56feffa15e68cd9f53f9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"6d898f943766440cf766d30364e715111c3563b5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"33f6b8a96dda045789796c3bcb451c74ac158039\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"3245801d44a44c090acefe19a12d22d12cac45c5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"9d448bbab724b94d6c561e1f314656f5b88a7cb3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"54f7f0eaafa56b5994cdb5c7967946922c2e1d22\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\n                            \"lessThan\": \"7bd4b0c4779f978a6528c9b7937d2ca18e936e2c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/nfc/nci/core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.253\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.203\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.167\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.130\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.77\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.17\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.7\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9","https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5","https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039","https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89","https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5","https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3","https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22","https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23339","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23339","identifiers":["CVE-2026-23339"]},"retained":false,"historicalAffected":[]}],"coverage":[]}