{
  "cveId": "CVE-2022-49930",
  "url": "https://patchblox.com/security/cve/CVE-2022-49930",
  "summary": "CVE-2022-49930 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49930, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  RDMA/hns: Fix NULL pointer problem in free_mr_in...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  RDMA/hns: Fix NULL pointer problem in free_mr_init()  Lock grab occurs in a concurrent scenario, resulting in stepping on a NULL pointer.  It should be init mutex_init() first before use the lock.    Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000   Call trace:    __mutex_lock.constprop.0\u002B0xd0/0x5c0    __mutex_lock_slowpath\u002B0x1c/0x2c    mutex_lock\u002B0x44/0x50    free_mr_send_cmd_to_hw\u002B0x7c/0x1c0 [hns_roce_hw_v2]    hns_roce_v2_dereg_mr\u002B0x30/0x40 [hns_roce_hw_v2]    hns_roce_dereg_mr\u002B0x4c/0x130 [hns_roce_hw_v2]    ib_dereg_mr_user\u002B0x54/0x124    uverbs_free_mr\u002B0x24/0x30    destroy_hw_idr_uobject\u002B0x38/0x74    uverbs_destroy_uobject\u002B0x48/0x1c4    uobj_destroy\u002B0x74/0xcc    ib_uverbs_cmd_verbs\u002B0x368/0xbb0    ib_uverbs_ioctl\u002B0xec/0x1a4    __arm64_sys_ioctl\u002B0xb4/0x100    invoke_syscall\u002B0x50/0x120    el0_svc_common.constprop.0\u002B0x58/0x190    do_el0_svc\u002B0x30/0x90    el0_svc\u002B0x2c/0xb4    el0t_64_sync_handler\u002B0x1a4/0x1b0    el0t_64_sync\u002B0x19c/0x1a0",
  "published": "2025-05-01T15:16:18Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00159,
  "epssPercentile": 0.05047,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49930",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49930",
      "released": "2025-05-01T15:16:18Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49930",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49930",
      "released": "2025-05-01T15:16:18Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.8-1",
      "fix": "DEBIAN-CVE-2022-49930",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49930",
      "released": "2025-05-01T15:16:18Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}