nfc: virtual_ncidev: Fix memory leak in virtual_nci_send()

{
  "id": "652aa03eb1977ce0860b620d89122dfb7a9d9a463e253f5baf809b851c205779",
  "url": "https://osv.dev/vulnerability/CVE-2022-50854",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nfc: virtual_ncidev: Fix memory leak in virtual_nci_send()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nfc: virtual_ncidev: Fix memory leak in virtual_nci_send() skb should be free in virtual_nci_send(), otherwise kmemleak will report memleak. Steps for reproduction (simulated in qemu): cd tools/testing/selftests/nci make ./nci_dev BUG: memory leak unreferenced object 0xffff888107588000 (size 208): comm \"nci_dev\", pid 206, jiffies 4294945376 (age 368.248s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008d94c8fd>] __alloc_skb+0x1da/0x290 [<00000000278bc7f8>] nci_send_cmd+0xa3/0x350 [<0000000081256a22>] nci_reset_req+0x6b/0xa0 [<000000009e721112>] __nci_request+0x90/0x250 [<000000005d556e59>] nci_dev_up+0x217/0x5b0 [<00000000e618ce62>] nfc_dev_up+0x114/0x220 [<00000000981e226b>] nfc_genl_dev_up+0x94/0xe0 [<000000009bb03517>] genl_family_rcv_msg_doit.isra.14+0x228/0x2d0 [<00000000b7f8c101>] genl_rcv_msg+0x35c/0x640 [<00000000c94075ff>] netlink_rcv_skb+0x11e/0x350 [<00000000440cfb1e>] genl_rcv+0x24/0x40 [<0000000062593b40>] netlink_unicast+0x43f/0x640 [<000000001d0b13cc>] netlink_sendmsg+0x73a/0xbf0 [<000000003272487f>] __sys_sendto+0x324/0x370 [<00000000ef9f1747>] __x64_sys_sendto+0xdd/0x1b0 [<000000001e437841>] do_syscall_64+0x3f/0x90",
    "evidence": "osv:CVE-2022-50854",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.77",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-50854",
      "aliases": [
        "CVE-2022-50854"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e624e6c3e777fb3dfed036b9da4d433aee3608a5"
                },
                {
                  "fixed": "88e879c9f59511174ef0ab1a3c9c83e2dbf8a213"
                },
                {
                  "fixed": "2c46a9a5f0b1c7341aa67667801079f3ff571678"
                },
                {
                  "fixed": "e840d8f4a1b323973052a1af5ad4edafcde8ae3d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50854.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.12.0"
                },
                {
                  "fixed": "5.15.77"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.0.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50854.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.936281594Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/2c46a9a5f0b1c7341aa67667801079f3ff571678",
        "https://git.kernel.org/stable/c/88e879c9f59511174ef0ab1a3c9c83e2dbf8a213",
        "https://git.kernel.org/stable/c/e840d8f4a1b323973052a1af5ad4edafcde8ae3d",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50854.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50854",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50854.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50854",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 495848,
  "published_at": "2025-12-30T12:15:29.792+00:00"
}