FKIE_CVE-2025-37838

Vulnerability from fkie_nvd - Published: 2025-04-18 15:15 - Updated: 2026-06-17 09:15
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition In the ssi_protocol_probe() function, &ssi->work is bound with ssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function within the ssip_pn_ops structure is capable of starting the work. If we remove the module which will call ssi_protocol_remove() to make a cleanup, it will free ssi through kfree(ssi), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | ssip_xmit_work ssi_protocol_remove | kfree(ssi); | | struct hsi_client *cl = ssi->cl; | // use ssi Fix it by ensuring that the work is canceled before proceeding with the cleanup in ssi_protocol_remove().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72972552d0d0bfeb2dec5daf343a19018db36ffa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d03abc1c2b21324550fa71e12d53e7d3498e0af6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hsi/clients/ssi_protocol.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d03abc1c2b21324550fa71e12d53e7d3498e0af6",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "72972552d0d0bfeb2dec5daf343a19018db36ffa",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "d58493832e284f066e559b8da5ab20c15a2801d3",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "58eb29dba712ab0f13af59ca2fe545f5ce360e78",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "ae5a6a0b425e8f76a9f0677e50796e494e89b088",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "834e602d0cc7c743bfce734fad4a46cefc0f9ab1",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            },
            {
              "lessThan": "e3f88665a78045fe35c7669d2926b8d97b892c11",
              "status": "affected",
              "version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hsi/clients/ssi_protocol.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.293",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.237",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.135",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "29C64220-D258-41B3-A931-B8C3456115E5",
              "versionEndExcluding": "6.1.135",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6E5947E5-45E3-462A-829B-382B3B1C61BD",
              "versionEndExcluding": "6.6.88",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1D35A8A8-F3EC-45E6-AD37-1F154B27529D",
              "versionEndExcluding": "6.12.24",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4A475784-BF3B-4514-81EE-49C8522FB24A",
              "versionEndExcluding": "6.13.12",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "483E2E15-2135-4EC6-AB64-16282C5EF704",
              "versionEndExcluding": "6.14.3",
              "versionStartIncluding": "6.14",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition\n\nIn the ssi_protocol_probe() function, \u0026ssi-\u003ework is bound with\nssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function\nwithin the ssip_pn_ops structure is capable of starting the\nwork.\n\nIf we remove the module which will call ssi_protocol_remove()\nto make a cleanup, it will free ssi through kfree(ssi),\nwhile the work mentioned above will be used. The sequence\nof operations that may lead to a UAF bug is as follows:\n\nCPU0                                    CPU1\n\n                        | ssip_xmit_work\nssi_protocol_remove     |\nkfree(ssi);             |\n                        | struct hsi_client *cl = ssi-\u003ecl;\n                        | // use ssi\n\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: HSI: ssi_protocol: Se corrige la vulnerabilidad de use-after-free en el controlador ssi_protocol debido a la condici\u00f3n de ejecuci\u00f3n en la funci\u00f3n ssi_protocol_probe(), \u0026amp;ssi-\u0026gt;work est\u00e1 enlazada con ssip_xmit_work(), En ssip_pn_setup(), la funci\u00f3n ssip_pn_xmit() dentro de la estructura ssip_pn_ops es capaz de iniciar el trabajo. Si eliminamos el m\u00f3dulo que llamar\u00e1 a ssi_protocol_remove() para hacer una limpieza, liberar\u00e1 ssi a trav\u00e9s de kfree(ssi), mientras que el trabajo mencionado anteriormente se utilizar\u00e1. La secuencia de operaciones que puede llevar a un error de UAF es la siguiente: CPU0 CPU1 | ssip_xmit_work ssi_protocol_remove | kfree(ssi); | | struct hsi_client *cl = ssi-\u0026gt;cl; | // use ssi Corr\u00edjalo asegur\u00e1ndose de que el trabajo se cancele antes de continuar con la limpieza en ssi_protocol_remove()."
    }
  ],
  "id": "CVE-2025-37838",
  "lastModified": "2026-06-17T09:15:32.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-37838",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-21T14:38:43.871416Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-04-18T15:15:59.090",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/72972552d0d0bfeb2dec5daf343a19018db36ffa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d03abc1c2b21324550fa71e12d53e7d3498e0af6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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