RDMA/core: Fix null-ptr-deref in ib_core_cleanup()

{
  "id": "67016a96b5f416f9581a4885fcc66990e641e2aaeaf808d9582948d5c4791739",
  "url": "https://osv.dev/vulnerability/CVE-2022-49925",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RDMA/core: Fix null-ptr-deref in ib_core_cleanup()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix null-ptr-deref in ib_core_cleanup() KASAN reported a null-ptr-deref error: KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] CPU: 1 PID: 379 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:destroy_workqueue+0x2f/0x740 RSP: 0018:ffff888016137df8 EFLAGS: 00000202 ... Call Trace: ib_core_cleanup+0xa/0xa1 [ib_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa1a0d221b7 ... It is because the fail of roce_gid_mgmt_init() is ignored: ib_core_init() roce_gid_mgmt_init() gid_cache_wq = alloc_ordered_workqueue # fail ... ib_core_cleanup() roce_gid_mgmt_cleanup() destroy_workqueue(gid_cache_wq) # destroy an unallocated wq Fix this by catching the fail of roce_gid_mgmt_init() in ib_core_init().",
    "evidence": "osv:CVE-2022-49925",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.224",
            "evidence": "/affected/1/ranges"
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            "value": "5.10.154",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.78",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49925",
      "aliases": [
        "CVE-2022-49925"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
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                  "fixed": "af8fb5a0600e9ae29950e9422a032c3c22649ee5"
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                  "fixed": "d360e875c011a005628525bf290322058927e7dc"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
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      ],
      "modified": "2026-10-28T02:30:42.222285676Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/07c0d131cc0fe1f3981a42958fc52d573d303d89",
        "https://git.kernel.org/stable/c/6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5",
        "https://git.kernel.org/stable/c/ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9",
        "https://git.kernel.org/stable/c/af8fb5a0600e9ae29950e9422a032c3c22649ee5",
        "https://git.kernel.org/stable/c/d360e875c011a005628525bf290322058927e7dc",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49925.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49925",
        "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/2022/49xxx/CVE-2022-49925.json"
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    },
    "related_cves": [
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        "value": "CVE-2022-49925",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 509748,
  "published_at": "2025-05-01T14:11:03.96+00:00"
}