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

CVE-2025-21873 (GCVE-0-2025-21873)

Vulnerability from cvelistv5 – Published: 2025-03-27 14:57 – Updated: 2026-05-11 21:08
VLAI
Title
scsi: ufs: core: bsg: Fix crash when arpmb command fails
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: bsg: Fix crash when arpmb command fails If the device doesn't support arpmb we'll crash due to copying user data in bsg_transport_sg_io_fn(). In the case where ufs_bsg_exec_advanced_rpmb_req() returns an error, do not set the job's reply_len. Memory crash backtrace: 3,1290,531166405,-;ufshcd 0000:00:12.5: ARPMB OP failed: error code -22 4,1308,531166555,-;Call Trace: 4,1309,531166559,-; <TASK> 4,1310,531166565,-; ? show_regs+0x6d/0x80 4,1311,531166575,-; ? die+0x37/0xa0 4,1312,531166583,-; ? do_trap+0xd4/0xf0 4,1313,531166593,-; ? do_error_trap+0x71/0xb0 4,1314,531166601,-; ? usercopy_abort+0x6c/0x80 4,1315,531166610,-; ? exc_invalid_op+0x52/0x80 4,1316,531166622,-; ? usercopy_abort+0x6c/0x80 4,1317,531166630,-; ? asm_exc_invalid_op+0x1b/0x20 4,1318,531166643,-; ? usercopy_abort+0x6c/0x80 4,1319,531166652,-; __check_heap_object+0xe3/0x120 4,1320,531166661,-; check_heap_object+0x185/0x1d0 4,1321,531166670,-; __check_object_size.part.0+0x72/0x150 4,1322,531166679,-; __check_object_size+0x23/0x30 4,1323,531166688,-; bsg_transport_sg_io_fn+0x314/0x3b0
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6ff265fc5ef660499e0edc4641647e99eed3f519 , < 32fb5ec825f6f76bc28902181c65429a904a07fe (git)
Affected: 6ff265fc5ef660499e0edc4641647e99eed3f519 , < 59455f968c1004ed897ba873237657745d81ce0f (git)
Affected: 6ff265fc5ef660499e0edc4641647e99eed3f519 , < 7e3c96ff5c5f3206984ed077b2aa8c9b7c4e0327 (git)
Affected: 6ff265fc5ef660499e0edc4641647e99eed3f519 , < f27a95845b01e86d67c8b014b4f41bd3327daa63 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.81 , ≤ 6.6.* (semver)
Unaffected: 6.12.18 , ≤ 6.12.* (semver)
Unaffected: 6.13.6 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/ufs/core/ufs_bsg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "32fb5ec825f6f76bc28902181c65429a904a07fe",
              "status": "affected",
              "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
              "versionType": "git"
            },
            {
              "lessThan": "59455f968c1004ed897ba873237657745d81ce0f",
              "status": "affected",
              "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
              "versionType": "git"
            },
            {
              "lessThan": "7e3c96ff5c5f3206984ed077b2aa8c9b7c4e0327",
              "status": "affected",
              "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
              "versionType": "git"
            },
            {
              "lessThan": "f27a95845b01e86d67c8b014b4f41bd3327daa63",
              "status": "affected",
              "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/ufs/core/ufs_bsg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.81",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.81",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.18",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.6",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: bsg: Fix crash when arpmb command fails\n\nIf the device doesn\u0027t support arpmb we\u0027ll crash due to copying user data in\nbsg_transport_sg_io_fn().\n\nIn the case where ufs_bsg_exec_advanced_rpmb_req() returns an error, do not\nset the job\u0027s reply_len.\n\nMemory crash backtrace:\n3,1290,531166405,-;ufshcd 0000:00:12.5: ARPMB OP failed: error code -22\n\n4,1308,531166555,-;Call Trace:\n\n4,1309,531166559,-; \u003cTASK\u003e\n\n4,1310,531166565,-; ? show_regs+0x6d/0x80\n\n4,1311,531166575,-; ? die+0x37/0xa0\n\n4,1312,531166583,-; ? do_trap+0xd4/0xf0\n\n4,1313,531166593,-; ? do_error_trap+0x71/0xb0\n\n4,1314,531166601,-; ? usercopy_abort+0x6c/0x80\n\n4,1315,531166610,-; ? exc_invalid_op+0x52/0x80\n\n4,1316,531166622,-; ? usercopy_abort+0x6c/0x80\n\n4,1317,531166630,-; ? asm_exc_invalid_op+0x1b/0x20\n\n4,1318,531166643,-; ? usercopy_abort+0x6c/0x80\n\n4,1319,531166652,-; __check_heap_object+0xe3/0x120\n\n4,1320,531166661,-; check_heap_object+0x185/0x1d0\n\n4,1321,531166670,-; __check_object_size.part.0+0x72/0x150\n\n4,1322,531166679,-; __check_object_size+0x23/0x30\n\n4,1323,531166688,-; bsg_transport_sg_io_fn+0x314/0x3b0"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:08:10.466Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/32fb5ec825f6f76bc28902181c65429a904a07fe"
        },
        {
          "url": "https://git.kernel.org/stable/c/59455f968c1004ed897ba873237657745d81ce0f"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e3c96ff5c5f3206984ed077b2aa8c9b7c4e0327"
        },
        {
          "url": "https://git.kernel.org/stable/c/f27a95845b01e86d67c8b014b4f41bd3327daa63"
        }
      ],
      "title": "scsi: ufs: core: bsg: Fix crash when arpmb command fails",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21873",
    "datePublished": "2025-03-27T14:57:04.835Z",
    "dateReserved": "2024-12-29T08:45:45.781Z",
    "dateUpdated": "2026-05-11T21:08:10.466Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-21873",
      "date": "2026-09-18",
      "epss": "0.00203",
      "percentile": "0.10593"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/ufs/core/ufs_bsg.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "32fb5ec825f6f76bc28902181c65429a904a07fe",
                    "status": "affected",
                    "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "59455f968c1004ed897ba873237657745d81ce0f",
                    "status": "affected",
                    "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7e3c96ff5c5f3206984ed077b2aa8c9b7c4e0327",
                    "status": "affected",
                    "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "f27a95845b01e86d67c8b014b4f41bd3327daa63",
                    "status": "affected",
                    "version": "6ff265fc5ef660499e0edc4641647e99eed3f519",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/ufs/core/ufs_bsg.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.3"
                  },
                  {
                    "lessThan": "6.3",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.81",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.18",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.13.*",
                    "status": "unaffected",
                    "version": "6.13.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.14",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D3620254-8710-49A0-97E2-5AD235935D4A",
                    "versionEndExcluding": "6.6.81",
                    "versionStartIncluding": "6.3",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3D5C8D9A-4013-4C1A-810F-AA540BB5737C",
                    "versionEndExcluding": "6.12.18",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "64F12D9B-71C2-4CD7-A288-0D5EF1709620",
                    "versionEndExcluding": "6.13.6",
                    "versionStartIncluding": "6.13",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*",
                    "matchCriteriaId": "D3D6550E-6679-4560-902D-AF52DCFE905B",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: core: bsg: Fix crash when arpmb command fails\n\nIf the device doesn\u0027t support arpmb we\u0027ll crash due to copying user data in\nbsg_transport_sg_io_fn().\n\nIn the case where ufs_bsg_exec_advanced_rpmb_req() returns an error, do not\nset the job\u0027s reply_len.\n\nMemory crash backtrace:\n3,1290,531166405,-;ufshcd 0000:00:12.5: ARPMB OP failed: error code -22\n\n4,1308,531166555,-;Call Trace:\n\n4,1309,531166559,-; \u003cTASK\u003e\n\n4,1310,531166565,-; ? show_regs+0x6d/0x80\n\n4,1311,531166575,-; ? die+0x37/0xa0\n\n4,1312,531166583,-; ? do_trap+0xd4/0xf0\n\n4,1313,531166593,-; ? do_error_trap+0x71/0xb0\n\n4,1314,531166601,-; ? usercopy_abort+0x6c/0x80\n\n4,1315,531166610,-; ? exc_invalid_op+0x52/0x80\n\n4,1316,531166622,-; ? usercopy_abort+0x6c/0x80\n\n4,1317,531166630,-; ? asm_exc_invalid_op+0x1b/0x20\n\n4,1318,531166643,-; ? usercopy_abort+0x6c/0x80\n\n4,1319,531166652,-; __check_heap_object+0xe3/0x120\n\n4,1320,531166661,-; check_heap_object+0x185/0x1d0\n\n4,1321,531166670,-; __check_object_size.part.0+0x72/0x150\n\n4,1322,531166679,-; __check_object_size+0x23/0x30\n\n4,1323,531166688,-; bsg_transport_sg_io_fn+0x314/0x3b0"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: ufs: core: bsg: Se corrige el fallo cuando falla el comando arpmb. Si el dispositivo no es compatible con arpmb, se producir\u00e1 un fallo debido a la copia de datos de usuario en bsg_transport_sg_io_fn(). Si ufs_bsg_exec_advanced_rpmb_req() devuelve un error, no se debe establecer el valor de respuesta de la tarea. Seguimiento de fallos de memoria: 3,1290,531166405,-;ufshcd 0000:00:12.5: Error en la operaci\u00f3n ARPMB: c\u00f3digo de error -22 4,1308,531166555,-; Seguimiento de llamadas: 4,1309,531166559,-;  4,1310,531166565,-; ? show_regs+0x6d/0x80 4,1311,531166575,-; ? die+0x37/0xa0 4,1312,531166583,-; ? do_trap+0xd4/0xf0 4,1313,531166593,-; ? do_error_trap+0x71/0xb0 4,1314,531166601,-; ? usercopy_abort+0x6c/0x80 4,1315,531166610,-; ? exc_invalid_op+0x52/0x80 4,1316,531166622,-; ? usercopy_abort+0x6c/0x80 4,1317,531166630,-; ? asm_exc_invalid_op+0x1b/0x20 4,1318,531166643,-; ? usercopy_abort+0x6c/0x80 4,1319,531166652,-; __check_heap_object+0xe3/0x120 4,1320,531166661,-; check_heap_object+0x185/0x1d0 4,1321,531166670,-; __check_object_size.part.0+0x72/0x150 4,1322,531166679,-; __check_object_size+0x23/0x30 4,1323,531166688,-; bsg_transport_sg_io_fn+0x314/0x3b0 "
          }
        ],
        "id": "CVE-2025-21873",
        "lastModified": "2026-06-17T08:44:30.260",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-03-27T15:15:55.093",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/32fb5ec825f6f76bc28902181c65429a904a07fe"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/59455f968c1004ed897ba873237657745d81ce0f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7e3c96ff5c5f3206984ed077b2aa8c9b7c4e0327"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f27a95845b01e86d67c8b014b4f41bd3327daa63"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T00:04:29+00:00",
      "cve": "CVE-2025-21873",
      "id": "CVE-2025-21873",
      "initial_release_date": "2025-03-27T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: ufs: core: bsg: Fix crash when arpmb command fails",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21873.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T01:26:55Z",
      "cve": "CVE-2025-21873",
      "id": "CVE-2025-21873",
      "initial_release_date": "2025-03-28T03:00:59Z",
      "product_status:known_affected": "504",
      "product_status:known_not_affected": "317",
      "product_status:recommended": "384",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-21873",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21873.json",
      "version": "46"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…