{"api_version":"1","generated_at":"2026-04-19T01:15:25+00:00","cve":"CVE-2026-23339","urls":{"html":"https://cve.report/CVE-2026-23339","api":"https://cve.report/api/cve/CVE-2026-23339.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23339","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23339"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-03-25 11:16:31","updated_at":"2026-04-18 09:16:19"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22","name":"https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5","name":"https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89","name":"https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3","name":"https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c","name":"https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039","name":"https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9","name":"https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5","name":"https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23339","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23339","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 b367cb44d919f35b07cd56feffa15e68cd9f53f9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 6d898f943766440cf766d30364e715111c3563b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 33f6b8a96dda045789796c3bcb451c74ac158039 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 3245801d44a44c090acefe19a12d22d12cac45c5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 9d448bbab724b94d6c561e1f314656f5b88a7cb3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 54f7f0eaafa56b5994cdb5c7967946922c2e1d22 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6a2968aaf50c7a22fced77a5e24aa636281efca8 7bd4b0c4779f978a6528c9b7937d2ca18e936e2c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.253 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.203 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.167 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.77 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.17 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.7 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"23339","cve":"CVE-2026-23339","epss":"0.000320000","percentile":"0.090980000","score_date":"2026-04-18","updated_at":"2026-04-19 00:10:43"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/nfc/nci/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b367cb44d919f35b07cd56feffa15e68cd9f53f9","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"6d898f943766440cf766d30364e715111c3563b5","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"33f6b8a96dda045789796c3bcb451c74ac158039","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"3245801d44a44c090acefe19a12d22d12cac45c5","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"9d448bbab724b94d6c561e1f314656f5b88a7cb3","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"54f7f0eaafa56b5994cdb5c7967946922c2e1d22","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"},{"lessThan":"7bd4b0c4779f978a6528c9b7937d2ca18e936e2c","status":"affected","version":"6a2968aaf50c7a22fced77a5e24aa636281efca8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/nfc/nci/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.2"},{"lessThan":"3.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.77","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.253","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.203","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.167","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.130","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.77","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.17","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.7","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"3.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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"}],"providerMetadata":{"dateUpdated":"2026-04-18T08:58:02.658Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9"},{"url":"https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5"},{"url":"https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039"},{"url":"https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89"},{"url":"https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5"},{"url":"https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3"},{"url":"https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22"},{"url":"https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c"}],"title":"nfc: nci: free skb on nci_transceive early error paths","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23339","datePublished":"2026-03-25T10:27:28.073Z","dateReserved":"2026-01-13T15:37:45.997Z","dateUpdated":"2026-04-18T08:58:02.658Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-25 11:16:31","lastModifiedDate":"2026-04-18 09:16:19","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23339","Ordinal":"1","Title":"nfc: nci: free skb on nci_transceive early error paths","CVE":"CVE-2026-23339","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23339","Ordinal":"1","NoteData":"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","Type":"Description","Title":"nfc: nci: free skb on nci_transceive early error paths"}]}}}