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FKIE_CVE-2026-93141

Vulnerability from fkie_nvd - Published: 2026-09-17 17:18 - Updated: 2026-09-17 17:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: r8a66597: avoid double free of ep0_req in probe error path If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc and frees ep0_req, then falls through to clean_up2 where ep0_req is freed again when it is non-NULL. Remove the redundant free from err_add_udc and keep the cleanup in clean_up2 so the request is released exactly once. Issue found using a prototype static analysis tool and confirmed by code review.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6648c470918371766f6d368113dd2a4faebac93f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6be64cca6527f7fc99b05abf54f22db91bbc116f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b2e68583c7c51eea2aafb8f1793e0d285c56ac82
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/udc/r8a66597-udc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c9e93290ffe7db22a8131a5f5fd026335090fbbe",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "7721cf32efa428bd9649f4a9b89fc85601df87de",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "f9c43246128a2dd0f2bbad71decf153910ce3606",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "150d3f3c461345b6c9ae784912cf1e49c8e5ff6b",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "b2e68583c7c51eea2aafb8f1793e0d285c56ac82",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "6648c470918371766f6d368113dd2a4faebac93f",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "6be64cca6527f7fc99b05abf54f22db91bbc116f",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            },
            {
              "lessThan": "41d541e3718db01668a4cd29815ee4b3b55f76d2",
              "status": "affected",
              "version": "776976a67ae25d18be42794fd783a50757402cbe",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/udc/r8a66597-udc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "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\nusb: gadget: r8a66597: avoid double free of ep0_req in probe error path\n\nIf usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc\nand frees ep0_req, then falls through to clean_up2 where ep0_req is\nfreed again when it is non-NULL.\n\nRemove the redundant free from err_add_udc and keep the cleanup in\nclean_up2 so the request is released exactly once.\n\nIssue found using a prototype static analysis tool\nand confirmed by code review."
    }
  ],
  "id": "CVE-2026-93141",
  "lastModified": "2026-09-17T17:18:09.130",
  "metrics": {},
  "published": "2026-09-17T17:18:09.130",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6648c470918371766f6d368113dd2a4faebac93f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6be64cca6527f7fc99b05abf54f22db91bbc116f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b2e68583c7c51eea2aafb8f1793e0d285c56ac82"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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