RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert

{
  "id": "0ffaf5c5e3faba2305c32818a2930f7b23e8a1be8c7d6e553e046e0e46084118",
  "url": "https://osv.dev/vulnerability/CVE-2025-38387",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert The obj_event may be loaded immediately after inserted, then if the list_head is not initialized then we may get a poisonous pointer. This fixes the crash below: mlx5_core 0000:03:00.0: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0 enhanced) mlx5_core.sf mlx5_core.sf.4: firmware version: 32.38.3056 mlx5_core 0000:03:00.0 en3f0pf0sf2002: renamed from eth0 mlx5_core.sf mlx5_core.sf.4: Rate limit: 127 rates are supported, range: 0Mbps to 195312Mbps IPv6: ADDRCONF(NETDEV_CHANGE): en3f0pf0sf2002: link becomes ready Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060 Mem abort info: ESR = 0x96000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=00000007760fb000 [0000000000000060] pgd=000000076f6d7003, p4d=000000076f6d7003, pud=0000000777841003, pmd=0000000000000000 Internal error: Oops: 96000006 [#1] SMP Modules linked in: ipmb_host(OE) act_mirred(E) cls_flower(E) sch_ingress(E) mptcp_diag(E) udp_diag(E) raw_diag(E) unix_diag(E) tcp_diag(E) inet_diag(E) binfmt_misc(E) bonding(OE) rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) isofs(E) cdrom(E) mst_pciconf(OE) ib_umad(OE) mlx5_ib(OE) ipmb_dev_int(OE) mlx5_core(OE) kpatch_15237886(OEK) mlxdevm(OE) auxiliary(OE) ib_uverbs(OE) i",
    "evidence": "osv:CVE-2025-38387",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.296",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.240",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.187",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.144",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.97",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.37",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38387",
      "aliases": [
        "CVE-2025-38387"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "716b555fc0580c2aa4c2c32ae4401c7e3ad9873e"
                },
                {
                  "fixed": "972e968aac0dce8fe8faad54f6106de576695d8e"
                },
                {
                  "fixed": "00ed215f593876385451423924fe0358c556179c"
                },
                {
                  "fixed": "9a28377a96fb299c180dd9cf0be3b0a038a52d4e"
                },
                {
                  "fixed": "23a3b32a274a8d6f33480d0eff436eb100981651"
                },
                {
                  "fixed": "93fccfa71c66a4003b3d2fef3a38de7307e14a4e"
                },
                {
                  "fixed": "e8069711139249994450c214cec152b917b959e0"
                },
                {
                  "fixed": "8edab8a72d67742f87e9dc2e2b0cdfddda5dc29a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38387.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.3.0"
                },
                {
                  "fixed": "5.4.296"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.240"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.187"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.144"
                }
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.97"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.37"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38387.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.074803039Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/00ed215f593876385451423924fe0358c556179c",
        "https://git.kernel.org/stable/c/23a3b32a274a8d6f33480d0eff436eb100981651",
        "https://git.kernel.org/stable/c/716b555fc0580c2aa4c2c32ae4401c7e3ad9873e",
        "https://git.kernel.org/stable/c/8edab8a72d67742f87e9dc2e2b0cdfddda5dc29a",
        "https://git.kernel.org/stable/c/93fccfa71c66a4003b3d2fef3a38de7307e14a4e",
        "https://git.kernel.org/stable/c/972e968aac0dce8fe8faad54f6106de576695d8e",
        "https://git.kernel.org/stable/c/9a28377a96fb299c180dd9cf0be3b0a038a52d4e",
        "https://git.kernel.org/stable/c/e8069711139249994450c214cec152b917b959e0",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38387.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38387",
        "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/2025/38xxx/CVE-2025-38387.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38387",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 515856,
  "published_at": "2025-07-25T12:53:27.945+00:00"
}