GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-54154 (GCVE-0-2023-54154)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:07 – Updated: 2026-05-23 15:33
VLAI
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 76b77646f17118f5babe93c032e6b7a53bbde3b9 , < 1cd41d1669bcbc5052afa897f85608a62ff3fb30 (git)
Affected: becd9be6069e7b183c084f460f0eb363e43cc487 , < f84639c5ac5f4f95b3992da1af4ff382ebf2e819 (git)
Affected: becd9be6069e7b183c084f460f0eb363e43cc487 , < d14e3e553e05cb763964c991fe6acb0a6a1c6f9c (git)
Affected: bc5ebf93ae23a928303b3643c6f4c4da2f769e7c (git)
Affected: 1eaaf1b828cdaa58abccc68962d24005fd5e8852 (git)
Affected: 6.1.28 , < 6.1.55 (semver)
Affected: 6.2.15 , < 6.3 (semver)
Affected: 6.3.2 , < 6.4 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.1.55 , ≤ 6.1.* (semver)
Unaffected: 6.5.5 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/target/target_core_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1cd41d1669bcbc5052afa897f85608a62ff3fb30",
              "status": "affected",
              "version": "76b77646f17118f5babe93c032e6b7a53bbde3b9",
              "versionType": "git"
            },
            {
              "lessThan": "f84639c5ac5f4f95b3992da1af4ff382ebf2e819",
              "status": "affected",
              "version": "becd9be6069e7b183c084f460f0eb363e43cc487",
              "versionType": "git"
            },
            {
              "lessThan": "d14e3e553e05cb763964c991fe6acb0a6a1c6f9c",
              "status": "affected",
              "version": "becd9be6069e7b183c084f460f0eb363e43cc487",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "bc5ebf93ae23a928303b3643c6f4c4da2f769e7c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "1eaaf1b828cdaa58abccc68962d24005fd5e8852",
              "versionType": "git"
            },
            {
              "lessThan": "6.1.55",
              "status": "affected",
              "version": "6.1.28",
              "versionType": "semver"
            },
            {
              "lessThan": "6.3",
              "status": "affected",
              "version": "6.2.15",
              "versionType": "semver"
            },
            {
              "lessThan": "6.4",
              "status": "affected",
              "version": "6.3.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/target/target_core_transport.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.55",
                  "versionStartIncluding": "6.1.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.5",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.2.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.3.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: core: Fix target_cmd_counter leak\n\nThe target_cmd_counter struct allocated via target_alloc_cmd_counter() is\nnever freed, resulting in leaks across various transport types, e.g.:\n\n unreferenced object 0xffff88801f920120 (size 96):\n  comm \"sh\", pid 102, jiffies 4294892535 (age 713.412s)\n  hex dump (first 32 bytes):\n    07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 38 01 92 1f 80 88 ff ff  ........8.......\n  backtrace:\n    [\u003c00000000e58a6252\u003e] kmalloc_trace+0x11/0x20\n    [\u003c0000000043af4b2f\u003e] target_alloc_cmd_counter+0x17/0x90 [target_core_mod]\n    [\u003c000000007da2dfa7\u003e] target_setup_session+0x2d/0x140 [target_core_mod]\n    [\u003c0000000068feef86\u003e] tcm_loop_tpg_nexus_store+0x19b/0x350 [tcm_loop]\n    [\u003c000000006a80e021\u003e] configfs_write_iter+0xb1/0x120\n    [\u003c00000000e9f4d860\u003e] vfs_write+0x2e4/0x3c0\n    [\u003c000000008143433b\u003e] ksys_write+0x80/0xb0\n    [\u003c00000000a7df29b2\u003e] do_syscall_64+0x42/0x90\n    [\u003c0000000053f45fb8\u003e] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nFree the structure alongside the corresponding iscsit_conn / se_sess\nparent."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:33:43.772Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1cd41d1669bcbc5052afa897f85608a62ff3fb30"
        },
        {
          "url": "https://git.kernel.org/stable/c/f84639c5ac5f4f95b3992da1af4ff382ebf2e819"
        },
        {
          "url": "https://git.kernel.org/stable/c/d14e3e553e05cb763964c991fe6acb0a6a1c6f9c"
        }
      ],
      "title": "scsi: target: core: Fix target_cmd_counter leak",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54154",
    "datePublished": "2025-12-24T13:07:04.721Z",
    "dateReserved": "2025-12-24T13:02:52.529Z",
    "dateUpdated": "2026-05-23T15:33:43.772Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-54154",
      "date": "2026-09-15",
      "epss": "0.00193",
      "percentile": "0.09132"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-54154\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-24T13:16:17.407\",\"lastModified\":\"2026-06-17T06:46:54.023\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: target: core: Fix target_cmd_counter leak\\n\\nThe target_cmd_counter struct allocated via target_alloc_cmd_counter() is\\nnever freed, resulting in leaks across various transport types, e.g.:\\n\\n unreferenced object 0xffff88801f920120 (size 96):\\n  comm \\\"sh\\\", pid 102, jiffies 4294892535 (age 713.412s)\\n  hex dump (first 32 bytes):\\n    07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n    00 00 00 00 00 00 00 00 38 01 92 1f 80 88 ff ff  ........8.......\\n  backtrace:\\n    [\u003c00000000e58a6252\u003e] kmalloc_trace+0x11/0x20\\n    [\u003c0000000043af4b2f\u003e] target_alloc_cmd_counter+0x17/0x90 [target_core_mod]\\n    [\u003c000000007da2dfa7\u003e] target_setup_session+0x2d/0x140 [target_core_mod]\\n    [\u003c0000000068feef86\u003e] tcm_loop_tpg_nexus_store+0x19b/0x350 [tcm_loop]\\n    [\u003c000000006a80e021\u003e] configfs_write_iter+0xb1/0x120\\n    [\u003c00000000e9f4d860\u003e] vfs_write+0x2e4/0x3c0\\n    [\u003c000000008143433b\u003e] ksys_write+0x80/0xb0\\n    [\u003c00000000a7df29b2\u003e] do_syscall_64+0x42/0x90\\n    [\u003c0000000053f45fb8\u003e] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n\\nFree the structure alongside the corresponding iscsit_conn / se_sess\\nparent.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/target/target_core_transport.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"76b77646f17118f5babe93c032e6b7a53bbde3b9\",\"lessThan\":\"1cd41d1669bcbc5052afa897f85608a62ff3fb30\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"becd9be6069e7b183c084f460f0eb363e43cc487\",\"lessThan\":\"f84639c5ac5f4f95b3992da1af4ff382ebf2e819\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"becd9be6069e7b183c084f460f0eb363e43cc487\",\"lessThan\":\"d14e3e553e05cb763964c991fe6acb0a6a1c6f9c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"bc5ebf93ae23a928303b3643c6f4c4da2f769e7c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1eaaf1b828cdaa58abccc68962d24005fd5e8852\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6.1.28\",\"lessThan\":\"6.1.55\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.2.15\",\"lessThan\":\"6.3\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.3.2\",\"lessThan\":\"6.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/target/target_core_transport.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.55\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5.5\",\"lessThanOrEqual\":\"6.5.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1cd41d1669bcbc5052afa897f85608a62ff3fb30\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d14e3e553e05cb763964c991fe6acb0a6a1c6f9c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f84639c5ac5f4f95b3992da1af4ff382ebf2e819\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-03-05T02:19:22+00:00",
      "cve": "CVE-2023-54154",
      "id": "CVE-2023-54154",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "845",
      "product_status:known_affected": "36",
      "product_status:known_not_affected": "154",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service due to memory leak in target_cmd_counter",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54154.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:03:36Z",
      "cve": "CVE-2023-54154",
      "id": "CVE-2023-54154",
      "initial_release_date": "2025-12-25T00:54:23Z",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "423",
      "product_status:recommended": "241",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-54154",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-54154.json",
      "version": "36"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.