FKIE_CVE-2026-92490

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unrequest devices if driver registration fails scmi_driver_register() requests protocol devices before registering the driver. If driver_register() fails, those requests remain in the global IDR and retain pointers to the module's ID table. Once the failed module load releases that storage, later request matching or SCMI device creation can dereference the stale pointers. Unrequest the complete protocol table before returning the registration failure. At this point table registration succeeded, so every entry is owned by the current registration attempt.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/06e65e07a1bcb39a1ebc8bb89a981f8e07900497
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4520d4a1db37198756ad23568e36cdf091b6ffff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/524e57035af2d32498af9dd8fa6fdc92fcc8f80a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a76b20b1f03099204db29b90e1024fe1c2b2cdd7
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_scmi/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "524e57035af2d32498af9dd8fa6fdc92fcc8f80a",
              "status": "affected",
              "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
              "versionType": "git"
            },
            {
              "lessThan": "06e65e07a1bcb39a1ebc8bb89a981f8e07900497",
              "status": "affected",
              "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
              "versionType": "git"
            },
            {
              "lessThan": "a76b20b1f03099204db29b90e1024fe1c2b2cdd7",
              "status": "affected",
              "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
              "versionType": "git"
            },
            {
              "lessThan": "4520d4a1db37198756ad23568e36cdf091b6ffff",
              "status": "affected",
              "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
              "versionType": "git"
            },
            {
              "lessThan": "9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86",
              "status": "affected",
              "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_scmi/bus.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": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Unrequest devices if driver registration fails\n\nscmi_driver_register() requests protocol devices before registering the\ndriver. If driver_register() fails, those requests remain in the global\nIDR and retain pointers to the module\u0027s ID table. Once the failed module\nload releases that storage, later request matching or SCMI device creation\ncan dereference the stale pointers.\n\nUnrequest the complete protocol table before returning the registration\nfailure. At this point table registration succeeded, so every entry is\nowned by the current registration attempt."
    }
  ],
  "id": "CVE-2026-92490",
  "lastModified": "2026-09-17T17:17:51.123",
  "metrics": {},
  "published": "2026-09-17T17:17:51.123",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/06e65e07a1bcb39a1ebc8bb89a981f8e07900497"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4520d4a1db37198756ad23568e36cdf091b6ffff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/524e57035af2d32498af9dd8fa6fdc92fcc8f80a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9f7cd6a62aa754ed6b48cbd5d50de40add1bcc86"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a76b20b1f03099204db29b90e1024fe1c2b2cdd7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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