{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0e23e85d86b78e734dd6654f1b69fbaeb5534c81",
              "status": "affected",
              "version": "70f92521584f1d1e8268311ee84413307b0fdea8",
              "versionType": "git"
            },
            {
              "lessThan": "12bcaf87d8b66d8cd812479c8a6349dcb245375c",
              "status": "affected",
              "version": "70f92521584f1d1e8268311ee84413307b0fdea8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.8",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix NULL pointer problem in free_mr_init()\n\nLock grab occurs in a concurrent scenario, resulting in stepping on a NULL\npointer.  It should be init mutex_init() first before use the lock.\n\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n  Call trace:\n   __mutex_lock.constprop.0+0xd0/0x5c0\n   __mutex_lock_slowpath+0x1c/0x2c\n   mutex_lock+0x44/0x50\n   free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2]\n   hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2]\n   hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2]\n   ib_dereg_mr_user+0x54/0x124\n   uverbs_free_mr+0x24/0x30\n   destroy_hw_idr_uobject+0x38/0x74\n   uverbs_destroy_uobject+0x48/0x1c4\n   uobj_destroy+0x74/0xcc\n   ib_uverbs_cmd_verbs+0x368/0xbb0\n   ib_uverbs_ioctl+0xec/0x1a4\n   __arm64_sys_ioctl+0xb4/0x100\n   invoke_syscall+0x50/0x120\n   el0_svc_common.constprop.0+0x58/0x190\n   do_el0_svc+0x30/0x90\n   el0_svc+0x2c/0xb4\n   el0t_64_sync_handler+0x1a4/0x1b0\n   el0t_64_sync+0x19c/0x1a0"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:49:06.139Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0e23e85d86b78e734dd6654f1b69fbaeb5534c81"
        },
        {
          "url": "https://git.kernel.org/stable/c/12bcaf87d8b66d8cd812479c8a6349dcb245375c"
        }
      ],
      "title": "RDMA/hns: Fix NULL pointer problem in free_mr_init()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49930",
    "datePublished": "2025-05-01T14:11:07.408Z",
    "dateReserved": "2025-05-01T14:05:17.254Z",
    "dateUpdated": "2025-05-04T08:49:06.139Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49930\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:18.983\",\"lastModified\":\"2025-05-02T13:52:51.693\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nRDMA/hns: Fix NULL pointer problem in free_mr_init()\\n\\nLock grab occurs in a concurrent scenario, resulting in stepping on a NULL\\npointer.  It should be init mutex_init() first before use the lock.\\n\\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\\n  Call trace:\\n   __mutex_lock.constprop.0+0xd0/0x5c0\\n   __mutex_lock_slowpath+0x1c/0x2c\\n   mutex_lock+0x44/0x50\\n   free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2]\\n   hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2]\\n   hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2]\\n   ib_dereg_mr_user+0x54/0x124\\n   uverbs_free_mr+0x24/0x30\\n   destroy_hw_idr_uobject+0x38/0x74\\n   uverbs_destroy_uobject+0x48/0x1c4\\n   uobj_destroy+0x74/0xcc\\n   ib_uverbs_cmd_verbs+0x368/0xbb0\\n   ib_uverbs_ioctl+0xec/0x1a4\\n   __arm64_sys_ioctl+0xb4/0x100\\n   invoke_syscall+0x50/0x120\\n   el0_svc_common.constprop.0+0x58/0x190\\n   do_el0_svc+0x30/0x90\\n   el0_svc+0x2c/0xb4\\n   el0t_64_sync_handler+0x1a4/0x1b0\\n   el0t_64_sync+0x19c/0x1a0\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/hns: Se solucion\u00f3 el problema del puntero nulo en free_mr_init(). La captura de bloqueo ocurre en un escenario concurrente, lo que resulta en la sobreexposici\u00f3n a un puntero nulo. Se debe inicializar mutex_init() antes de usar el bloqueo. No se puede gestionar la desreferencia del puntero NULL del n\u00facleo en la direcci\u00f3n virtual 0000000000000000 Rastreo de llamadas: __mutex_lock.constprop.0+0xd0/0x5c0 __mutex_lock_slowpath+0x1c/0x2c mutex_lock+0x44/0x50 free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2] hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2] hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2] ib_dereg_mr_user+0x54/0x124 uverbs_free_mr+0x24/0x30 destroy_hw_idr_uobject+0x38/0x74 uverbs_destroy_uobject+0x48/0x1c4 uobj_destroy+0x74/0xcc ib_uverbs_cmd_verbs+0x368/0xbb0 ib_uverbs_ioctl+0xec/0x1a4 __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0x58/0x190 do_el0_svc+0x30/0x90 el0_svc+0x2c/0xb4 el0t_64_sync_handler+0x1a4/0x1b0 el0t_64_sync+0x19c/0x1a0 \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0e23e85d86b78e734dd6654f1b69fbaeb5534c81\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/12bcaf87d8b66d8cd812479c8a6349dcb245375c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}