{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4A83CCE5-725E-495E-A0C2-C673EA7B658A",
              "versionEndExcluding": "5.15.78",
              "versionStartIncluding": "5.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EC9A754E-625D-42F3-87A7-960D643E2867",
              "versionEndExcluding": "6.0.8",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: Fix null-ptr-deref when xps sysfs alloc failed\n\nThere is a null-ptr-deref when xps sysfs alloc failed:\n  BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0\n  Read of size 8 at addr 0000000000000030 by task gssproxy/457\n\n  CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9\n  Call Trace:\n   \u003cTASK\u003e\n   dump_stack_lvl+0x34/0x44\n   kasan_report+0xa3/0x120\n   sysfs_do_create_link_sd+0x40/0xd0\n   rpc_sysfs_client_setup+0x161/0x1b0\n   rpc_new_client+0x3fc/0x6e0\n   rpc_create_xprt+0x71/0x220\n   rpc_create+0x1d4/0x350\n   gssp_rpc_create+0xc3/0x160\n   set_gssp_clnt+0xbc/0x140\n   write_gssp+0x116/0x1a0\n   proc_reg_write+0xd6/0x130\n   vfs_write+0x177/0x690\n   ksys_write+0xb9/0x150\n   do_syscall_64+0x35/0x80\n   entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nWhen the xprt_switch sysfs alloc failed, should not add xprt and\nswitch sysfs to it, otherwise, maybe null-ptr-deref; also initialize\nthe \u0027xps_sysfs\u0027 to NULL to avoid oops when destroy it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: SUNRPC: Se corrige null-ptr-deref cuando falla la asignaci\u00f3n de sysfs en XPS. Hay un null-ptr-deref cuando falla la asignaci\u00f3n de sysfs en XPS: ERROR: KASAN: null-ptr-deref en sysfs_do_create_link_sd+0x40/0xd0 Lectura de tama\u00f1o 8 en la direcci\u00f3n 0000000000000030 por la tarea gssproxy/457 CPU: 5 PID: 457 Comm: gssproxy No contaminado 6.0.0-09040-g02357b27ee03 #9 Rastreo de llamadas:   dump_stack_lvl+0x34/0x44 kasan_report+0xa3/0x120 sysfs_do_create_link_sd+0x40/0xd0 rpc_sysfs_client_setup+0x161/0x1b0 rpc_new_client+0x3fc/0x6e0 rpc_create_xprt+0x71/0x220 rpc_create+0x1d4/0x350 gssp_rpc_create+0xc3/0x160 set_gssp_clnt+0xbc/0x140 write_gssp+0x116/0x1a0 proc_reg_write+0xd6/0x130 vfs_write+0x177/0x690 ksys_write+0xb9/0x150 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Cuando la asignaci\u00f3n sysfs xprt_switch falla, no se debe agregar xprt y switch sysfs a \u00e9l, de lo contrario, tal vez null-ptr-deref; tambi\u00e9n inicialice \u0027xps_sysfs\u0027 a NULL para evitar errores al destruirlo."
    }
  ],
  "id": "CVE-2022-49928",
  "lastModified": "2025-05-07T13:28:44.973",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-05-01T15:16:18.783",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7b189b0aa8dab14b49c31c65af8a982e96e25b62"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cbdeaee94a415800c65a8c3fa04d9664a8b8fb3a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d59722d088a9d86ce6d9d39979e5d1d669d249f7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}