CVE-2025-38399 (GCVE-0-2025-38399)

Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2026-10-15 21:52
VLAI
Title
scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port() The function core_scsi3_decode_spec_i_port(), in its error code path, unconditionally calls core_scsi3_lunacl_undepend_item() passing the dest_se_deve pointer, which may be NULL. This can lead to a NULL pointer dereference if dest_se_deve remains unset. SPC-3 PR SPEC_I_PT: Unable to locate dest_tpg Unable to handle kernel paging request at virtual address dfff800000000012 Call trace: core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P) core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod] core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod] target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod] Fix this by adding a NULL check before calling core_scsi3_lunacl_undepend_item()
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:49 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 70ddb8133fdb512d4b1f2b4fd1c9e518514f182c (git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 1129e0e0a833acf90429e0f13951068d5f026e4f (git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 1627dda4d70ceb1ba62af2e401af73c09abb1eb5 (git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 55dfffc5e94730370b08de02c0cf3b7c951bbe9e (git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 7296c938df2445f342be456a6ff0b3931d97f4e5 (git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < c412185d557578d3f936537ed639c4ffaaed4075 (git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < d8ab68bdb294b09a761e967dad374f2965e1913f (git)
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Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.187 , ≤ 5.15.* (semver)
Unaffected: 6.1.144 , ≤ 6.1.* (semver)
Unaffected: 6.6.97 , ≤ 6.6.* (semver)
Unaffected: 6.12.37 , ≤ 6.12.* (semver)
Unaffected: 6.15.6 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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                    "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()\n\nThe function core_scsi3_decode_spec_i_port(), in its error code path,\nunconditionally calls core_scsi3_lunacl_undepend_item() passing the\ndest_se_deve pointer, which may be NULL.\n\nThis can lead to a NULL pointer dereference if dest_se_deve remains\nunset.\n\nSPC-3 PR SPEC_I_PT: Unable to locate dest_tpg\nUnable to handle kernel paging request at virtual address dfff800000000012\nCall trace:\n  core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P)\n  core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod]\n  core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod]\n  target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod]\n\nFix this by adding a NULL check before calling\ncore_scsi3_lunacl_undepend_item()"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port(). La funci\u00f3n core_scsi3_decode_spec_i_port(), en su ruta de c\u00f3digo de error, llama incondicionalmente a core_scsi3_lunacl_undepend_item() pasando el puntero dest_se_deve, que puede ser NULL. Esto puede provocar una desreferencia de puntero NULL si dest_se_deve permanece sin definir. SPC-3 PR SPEC_I_PT: No se puede ubicar dest_tpg No se puede manejar la solicitud de paginaci\u00f3n del n\u00facleo en la direcci\u00f3n virtual dfff800000000012 Rastreo de llamadas: core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P) core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod] core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod] target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod] Solucione esto agregando una comprobaci\u00f3n NULL antes de llamar a core_scsi3_lunacl_undepend_item()"
          }
        ],
        "id": "CVE-2025-38399",
        "lastModified": "2026-10-15T22:18:39.923",
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          {
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            "tags": [
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            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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              "Third Party Advisory"
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
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                "lang": "en",
                "value": "CWE-476"
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            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:08:44+00:00",
      "cve": "CVE-2025-38399",
      "id": "CVE-2025-38399",
      "initial_release_date": "2025-07-25T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38399.json",
      "version": "3"
    },
    "vulnrichment": {
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              "dateUpdated": "2025-11-03T17:37:31.744Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
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                "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
              },
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-38399",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
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                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-15T21:49:58.435255Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
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              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-15T21:49:59.082Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/target/target_core_pr.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "70ddb8133fdb512d4b1f2b4fd1c9e518514f182c",
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                  "versionType": "git"
                },
                {
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                  "status": "affected",
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                {
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              ],
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              "vendor": "Linux",
              "versions": [
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                  "status": "affected",
                  "version": "5.9"
                },
                {
                  "lessThan": "5.9",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.240",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
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                  "version": "5.15.187",
                  "versionType": "semver"
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                {
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                  "version": "6.1.144",
                  "versionType": "semver"
                },
                {
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                  "version": "6.6.97",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.37",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.15.*",
                  "status": "unaffected",
                  "version": "6.15.6",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.16",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
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              "nodes": [
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.240",
                      "versionStartIncluding": "5.9",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                    {
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                  "negate": false,
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          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()\n\nThe function core_scsi3_decode_spec_i_port(), in its error code path,\nunconditionally calls core_scsi3_lunacl_undepend_item() passing the\ndest_se_deve pointer, which may be NULL.\n\nThis can lead to a NULL pointer dereference if dest_se_deve remains\nunset.\n\nSPC-3 PR SPEC_I_PT: Unable to locate dest_tpg\nUnable to handle kernel paging request at virtual address dfff800000000012\nCall trace:\n  core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P)\n  core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod]\n  core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod]\n  target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod]\n\nFix this by adding a NULL check before calling\ncore_scsi3_lunacl_undepend_item()"
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:N - The vulnerable code is in the fabric-independent LIO SCSI target core, reached by parsing a PERSISTENT RESERVE OUT CDB and parameter list sent by a remote initiator; the flagship fabric (iscsi_target) accepts these over TCP/3260, so a remote peer on the network can deliver the malicious payload.\nAC:L - The attacker fully controls every precondition (service action, res_key=0, sa_res_key!=0, SPEC_I_PT bit, and the parameter list length/TransportID contents), and the NULL pointer is unconditionally present on the very first list entry, so a single malformed PR OUT command crashes the kernel deterministically with no race or memory-layout dependency.\nPR:N - LIO iSCSI targets are routinely deployed without CHAP, where the only \"credential\" is a self-asserted InitiatorName that is discoverable via a SendTargets discovery session, and demo-mode (generate_node_acls=1) grants any peer a mapped LUN outright \u2014 so an unauthenticated network attacker can establish the nexus needed to issue the command.\nUI:N - The crash is triggered purely by the attacker sending one SCSI command over an established I_T nexus; no action by any local user or administrator is needed.\nS:U - The NULL dereference occurs in the kernel that owns the target device and its impact is confined to that same kernel\u0027s security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:N - The fault is a read of a fixed small offset (se_deve-\u003ese_lun_acl) off a NULL pointer; no attacker-influenced offset, no out-of-bounds read, and no data is returned to the initiator, so nothing is disclosed.\nI:N - No memory is written and no attacker-controlled data reaches a store; the dereference faults on a read before any state modification, giving no write or control-flow primitive.\nA:H - The NULL pointer dereference produces a kernel oops (full panic with panic_on_oops) that can be re-triggered at will by an unauthenticated initiator, and the killed command context strands se_lun-\u003elun_ref percpu references so the target subsystem hangs on teardown."
                }
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            }
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            "dateUpdated": "2026-08-05T12:01:36.347Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
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            },
            {
              "url": "https://git.kernel.org/stable/c/d8ab68bdb294b09a761e967dad374f2965e1913f"
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          ],
          "title": "scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()",
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        "assignerShortName": "Linux",
        "cveId": "CVE-2025-38399",
        "datePublished": "2025-07-25T12:53:43.211Z",
        "dateReserved": "2025-04-16T04:51:24.012Z",
        "dateUpdated": "2026-10-15T21:52:15.159Z",
        "state": "PUBLISHED"
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  }
}



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