ipmi_si: fix a memleak in try_smi_init()

{
  "id": "ab7fd51ca0a4db046b2d90494909ac8aa4334f2eb1beccd4b977ac375c2614f7",
  "url": "https://osv.dev/vulnerability/CVE-2023-53611",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ipmi_si: fix a memleak in try_smi_init()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ipmi_si: fix a memleak in try_smi_init() Kmemleak reported the following leak info in try_smi_init(): unreferenced object 0xffff00018ecf9400 (size 1024): comm \"modprobe\", pid 2707763, jiffies 4300851415 (age 773.308s) backtrace: [<000000004ca5b312>] __kmalloc+0x4b8/0x7b0 [<00000000953b1072>] try_smi_init+0x148/0x5dc [ipmi_si] [<000000006460d325>] 0xffff800081b10148 [<0000000039206ea5>] do_one_initcall+0x64/0x2a4 [<00000000601399ce>] do_init_module+0x50/0x300 [<000000003c12ba3c>] load_module+0x7a8/0x9e0 [<00000000c246fffe>] __se_sys_init_module+0x104/0x180 [<00000000eea99093>] __arm64_sys_init_module+0x24/0x30 [<0000000021b1ef87>] el0_svc_common.constprop.0+0x94/0x250 [<0000000070f4f8b7>] do_el0_svc+0x48/0xe0 [<000000005a05337f>] el0_svc+0x24/0x3c [<000000005eb248d6>] el0_sync_handler+0x160/0x164 [<0000000030a59039>] el0_sync+0x160/0x180 The problem was that when an error occurred before handlers registration and after allocating `new_smi->si_sm`, the variable wouldn't be freed in the error handling afterwards since `shutdown_smi()` hadn't been registered yet. Fix it by adding a `kfree()` in the error handling path in `try_smi_init()`.",
    "evidence": "osv:CVE-2023-53611",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.295",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.257",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.195",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.132",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.53",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.4.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.5.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-53611",
      "aliases": [
        "CVE-2023-53611"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7960f18a56475bf2177c5ff56c72eb4c12c56440"
                },
                {
                  "fixed": "b9bc8fbb2d416ce87f0342478dc9fcfd79f2c65f"
                },
                {
                  "fixed": "f53ab5a2bf20fed59a2f7542d3453228b8056358"
                },
                {
                  "fixed": "5c5f02e16b919c8cb6024dc3778c8d8f1fb1f26b"
                },
                {
                  "fixed": "cbb7d8a4b4beb3061b3a1847a742983a01dca381"
                },
                {
                  "fixed": "09cb2a71b2e982015fe0464f28da1ab42b8e6375"
                },
                {
                  "fixed": "1bfcfea0fae0d0a6c6ff5543e6d704b3807b83ce"
                },
                {
                  "fixed": "7291af9a738d936c2d6869d030711dceb68404d0"
                },
                {
                  "fixed": "6cf1a126de2992b4efe1c3c4d398f8de4aed6e3f"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53611.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.18.0"
                },
                {
                  "fixed": "4.19.295"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.257"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.195"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.132"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.53"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.4.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.5.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53611.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:47.911047578Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/09cb2a71b2e982015fe0464f28da1ab42b8e6375",
        "https://git.kernel.org/stable/c/1bfcfea0fae0d0a6c6ff5543e6d704b3807b83ce",
        "https://git.kernel.org/stable/c/5c5f02e16b919c8cb6024dc3778c8d8f1fb1f26b",
        "https://git.kernel.org/stable/c/6cf1a126de2992b4efe1c3c4d398f8de4aed6e3f",
        "https://git.kernel.org/stable/c/7291af9a738d936c2d6869d030711dceb68404d0",
        "https://git.kernel.org/stable/c/b9bc8fbb2d416ce87f0342478dc9fcfd79f2c65f",
        "https://git.kernel.org/stable/c/cbb7d8a4b4beb3061b3a1847a742983a01dca381",
        "https://git.kernel.org/stable/c/f53ab5a2bf20fed59a2f7542d3453228b8056358",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53611.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53611",
        "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/2023/53xxx/CVE-2023-53611.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53611",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 515883,
  "published_at": "2025-10-04T15:44:19.593+00:00"
}