nvd-json-data-feeds/CVE-2025/CVE-2025-217xx/CVE-2025-21755.json

{
  "id": "CVE-2025-21755",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-02-27T03:15:16.150",
  "lastModified": "2025-03-13T13:15:52.260",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Orphan socket after transport release\n\nDuring socket release, sock_orphan() is called without considering that it\nsets sk->sk_wq to NULL. Later, if SO_LINGER is enabled, this leads to a\nnull pointer dereferenced in virtio_transport_wait_close().\n\nOrphan the socket only after transport release.\n\nPartially reverts the 'Fixes:' commit.\n\nKASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\n lock_acquire+0x19e/0x500\n _raw_spin_lock_irqsave+0x47/0x70\n add_wait_queue+0x46/0x230\n virtio_transport_release+0x4e7/0x7f0\n __vsock_release+0xfd/0x490\n vsock_release+0x90/0x120\n __sock_release+0xa3/0x250\n sock_close+0x14/0x20\n __fput+0x35e/0xa90\n __x64_sys_close+0x78/0xd0\n do_syscall_64+0x93/0x1b0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: socket hu\u00e9rfano despu\u00e9s de la liberaci\u00f3n del transporte Durante la liberaci\u00f3n del socket, se llama a sock_orphan() sin tener en cuenta que establece sk->sk_wq en NULL. M\u00e1s tarde, si se habilita SO_LINGER, esto conduce a un puntero nulo desreferenciado en virtio_transport_wait_close(). Deja hu\u00e9rfano el socket solo despu\u00e9s de la liberaci\u00f3n del transporte. Revierte parcialmente el commit 'Fixes:'. KASAN: desreferencia de punto nulo en el rango [0x0000000000000018-0x0000000000000001f] lock_acquire+0x19e/0x500 _raw_spin_lock_irqsave+0x47/0x70 add_wait_queue+0x46/0x230 virtio_transport_release+0x4e7/0x7f0 __vsock_release+0xfd/0x490 vsock_release+0x90/0x120 __sock_release+0xa3/0x250 sock_close+0x14/0x20 __fput+0x35e/0xa90 __x64_sys_close+0x78/0xd0 do_syscall_64+0x93/0x1b0 entry_SYSCALL_64_after_hwframe+0x76/0x7e"
    }
  ],
  "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": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F"
            },
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              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75"
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3a866f8376f0a5c848dcb59cd26df845fffbe6d8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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    {
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}