scsi: target: core: Fix target_cmd_counter leak

{
  "id": "7fd1ce3e330bf04a50ab3ee3d62105dea42fda7eff5a6d89759ac2be40f598e1",
  "url": "https://osv.dev/vulnerability/CVE-2023-54154",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "scsi: target: core: Fix target_cmd_counter leak",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix target_cmd_counter leak The target_cmd_counter struct allocated via target_alloc_cmd_counter() is never freed, resulting in leaks across various transport types, e.g.: unreferenced object 0xffff88801f920120 (size 96): comm \"sh\", pid 102, jiffies 4294892535 (age 713.412s) hex dump (first 32 bytes): 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 38 01 92 1f 80 88 ff ff ........8....... backtrace: [<00000000e58a6252>] kmalloc_trace+0x11/0x20 [<0000000043af4b2f>] target_alloc_cmd_counter+0x17/0x90 [target_core_mod] [<000000007da2dfa7>] target_setup_session+0x2d/0x140 [target_core_mod] [<0000000068feef86>] tcm_loop_tpg_nexus_store+0x19b/0x350 [tcm_loop] [<000000006a80e021>] configfs_write_iter+0xb1/0x120 [<00000000e9f4d860>] vfs_write+0x2e4/0x3c0 [<000000008143433b>] ksys_write+0x80/0xb0 [<00000000a7df29b2>] do_syscall_64+0x42/0x90 [<0000000053f45fb8>] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Free the structure alongside the corresponding iscsit_conn / se_sess parent.",
    "evidence": "osv:CVE-2023-54154",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.55",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.5.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-54154",
      "aliases": [
        "CVE-2023-54154"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "76b77646f17118f5babe93c032e6b7a53bbde3b9"
                },
                {
                  "fixed": "1cd41d1669bcbc5052afa897f85608a62ff3fb30"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "becd9be6069e7b183c084f460f0eb363e43cc487"
                },
                {
                  "fixed": "f84639c5ac5f4f95b3992da1af4ff382ebf2e819"
                },
                {
                  "fixed": "d14e3e553e05cb763964c991fe6acb0a6a1c6f9c"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.1.28"
                },
                {
                  "fixed": "6.1.55"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.2.15"
                },
                {
                  "fixed": "6.3"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.3.2"
                },
                {
                  "fixed": "6.4"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bc5ebf93ae23a928303b3643c6f4c4da2f769e7c"
                }
              ]
            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1eaaf1b828cdaa58abccc68962d24005fd5e8852"
                }
              ]
            }
          ],
          "versions": [
            "v6.1.54",
            "v6.1.53",
            "v6.1.52",
            "v6.1.51",
            "v6.1.50",
            "v6.1.49",
            "v6.1.48",
            "v6.1.47",
            "v6.1.46",
            "v6.1.45",
            "v6.1.44",
            "v6.1.43",
            "v6.1.42",
            "v6.1.41",
            "v6.1.40",
            "v6.1.39",
            "v6.1.38",
            "v6.1.37",
            "v6.1.36",
            "v6.1.35",
            "v6.1.34",
            "v6.1.33",
            "v6.1.32",
            "v6.1.31",
            "v6.1.30",
            "v6.1.29",
            "v6.1.28",
            "v6.2.16",
            "v6.2.15",
            "v6.3.13",
            "v6.3.12",
            "v6.3.11",
            "v6.3.10",
            "v6.3.9",
            "v6.3.8",
            "v6.3.7",
            "v6.3.6",
            "v6.3.5",
            "v6.3.4",
            "v6.3.3",
            "v6.3.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54154.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.1.55"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.5.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54154.json"
          }
        }
      ],
      "modified": "2026-10-08T02:48:03.180236599Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1cd41d1669bcbc5052afa897f85608a62ff3fb30",
        "https://git.kernel.org/stable/c/d14e3e553e05cb763964c991fe6acb0a6a1c6f9c",
        "https://git.kernel.org/stable/c/f84639c5ac5f4f95b3992da1af4ff382ebf2e819",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54154.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54154",
        "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/2023/54xxx/CVE-2023-54154.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-54154",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 98261,
  "published_at": "2025-12-24T13:07:04.721+00:00"
}