CVE-2026-23339 (GCVE-0-2026-23339)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-11 22:04
VLAI?
Title
nfc: nci: free skb on nci_transceive early error paths
Summary
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on nci_transceive early error paths nci_transceive() takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCI_DATA_EXCHANGE fixed by subsequent changes the nci/nci_dev selftest hits the error path occasionally in NIPA, and kmemleak detects leaks: unreferenced object 0xff11000015ce6a40 (size 640): comm "nci_dev", pid 3954, jiffies 4295441246 hex dump (first 32 bytes): 6b 6b 6b 6b 00 a4 00 0c 02 e1 03 6b 6b 6b 6b 6b kkkk.......kkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc 7c40cc2a): kmem_cache_alloc_node_noprof+0x492/0x630 __alloc_skb+0x11e/0x5f0 alloc_skb_with_frags+0xc6/0x8f0 sock_alloc_send_pskb+0x326/0x3f0 nfc_alloc_send_skb+0x94/0x1d0 rawsock_sendmsg+0x162/0x4c0 do_syscall_64+0x117/0xfc0
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < b367cb44d919f35b07cd56feffa15e68cd9f53f9 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 6d898f943766440cf766d30364e715111c3563b5 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 33f6b8a96dda045789796c3bcb451c74ac158039 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 3245801d44a44c090acefe19a12d22d12cac45c5 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 9d448bbab724b94d6c561e1f314656f5b88a7cb3 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 54f7f0eaafa56b5994cdb5c7967946922c2e1d22 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 7bd4b0c4779f978a6528c9b7937d2ca18e936e2c (git)
Create a notification for this product.
Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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{
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      "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": "2026-05-11T22:04:55.743Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5"
        },
        {
          "url": "https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039"
        },
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          "url": "https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89"
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          "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",
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  "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": "2026-05-11T22:04:55.743Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-23339",
      "date": "2026-05-17",
      "epss": "0.00015",
      "percentile": "0.03373"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23339\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-03-25T11:16:31.670\",\"lastModified\":\"2026-04-23T21:17:17.730\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nnfc: nci: liberar skb en las rutas de error tempranas de nci_transceive\\n\\nnci_transceive() toma posesi\u00f3n del skb pasado por el llamador,\\npero las rutas de error -EPROTO, -EINVAL y -EBUSY regresan sin\\nliberarlo.\\n\\nDebido a problemas al limpiar NCI_DATA_EXCHANGE corregidos por cambios posteriores,\\nla autoprueba nci/nci_dev alcanza la ruta de error ocasionalmente en NIPA,\\ny kmemleak detecta fugas:\\n\\nobjeto sin referencia 0xff11000015ce6a40 (tama\u00f1o 640):\\n  comm \u0027nci_dev\u0027, pid 3954, jiffies 4295441246\\n  volcado hexadecimal (primeros 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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.2.1\",\"versionEndExcluding\":\"5.10.253\",\"matchCriteriaId\":\"A8136AA8-F2F0-4960-9AAF-176AC6ACEA92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.203\",\"matchCriteriaId\":\"20DDB3E9-AABF-4107-ADB0-5362AA067045\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.167\",\"matchCriteriaId\":\"2EDC6BAF-B710-4E26-B6AA-D68922EE7B43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.130\",\"matchCriteriaId\":\"C57BB918-DF28-46B3-94F7-144176841267\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.77\",\"matchCriteriaId\":\"B3D12E00-E42D-4056-B354-BAD4903C03A5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.17\",\"matchCriteriaId\":\"A5E006E4-59C7-43C1-9231-62A72219F2BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.7\",\"matchCriteriaId\":\"69245D10-0B71-485E-80C3-A64F077004D3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:3.2:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"2BEBAC7C-43AE-4D02-A957-26F89F27E0AC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F253B622-8837-4245-BCE5-A7BF8FC76A16\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F666C8D8-6538-46D4-B318-87610DE64C34\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"02259FDA-961B-47BC-AE7F-93D7EC6E90C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"58A9FEFF-C040-420D-8F0A-BFDAAA1DF258\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"1D2315C0-D46F-4F85-9754-F9E5E11374A6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"512EE3A8-A590-4501-9A94-5D4B268D6138\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.