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nfc: nci: free skb on nci_transceive early error paths

Type: advisorySource: Official CVE List1 source record

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

Announced Source revision 1
Original source ↗

CVE-2026-23339

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-23339

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "b367cb44d919f35b07cd56feffa15e68cd9f53f9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "6d898f943766440cf766d30364e715111c3563b5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "33f6b8a96dda045789796c3bcb451c74ac158039",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "3245801d44a44c090acefe19a12d22d12cac45c5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "9d448bbab724b94d6c561e1f314656f5b88a7cb3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "54f7f0eaafa56b5994cdb5c7967946922c2e1d22",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6a2968aaf50c7a22fced77a5e24aa636281efca8",
        "lessThan": "7bd4b0c4779f978a6528c9b7937d2ca18e936e2c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/nfc/nci/core.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.253",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.203",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.167",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.130",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.77",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.17",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.7",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/nfc/nci/core.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-23339

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#27228 · Revision 1
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Publisher date
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