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CVE-2026-93141 (GCVE-0-2026-93141)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:11 – Updated: 2026-09-17 16:11
VLAI
Title
usb: gadget: r8a66597: avoid double free of ep0_req in probe error path
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 776976a67ae25d18be42794fd783a50757402cbe , < c9e93290ffe7db22a8131a5f5fd026335090fbbe (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 7721cf32efa428bd9649f4a9b89fc85601df87de (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < f9c43246128a2dd0f2bbad71decf153910ce3606 (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 150d3f3c461345b6c9ae784912cf1e49c8e5ff6b (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < b2e68583c7c51eea2aafb8f1793e0d285c56ac82 (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 6648c470918371766f6d368113dd2a4faebac93f (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 6be64cca6527f7fc99b05abf54f22db91bbc116f (git)
Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 41d541e3718db01668a4cd29815ee4b3b55f76d2 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.17
Unaffected: 0 , < 3.17 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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              "version": "0",
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                  "versionStartIncluding": "3.17",
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:11:40.761Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe"
        },
        {
          "url": "https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de"
        },
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          "url": "https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606"
        },
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          "url": "https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b"
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        },
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          "url": "https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2"
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      ],
      "title": "usb: gadget: r8a66597: avoid double free of ep0_req in probe error path",
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    "cveId": "CVE-2026-93141",
    "datePublished": "2026-09-17T16:11:40.761Z",
    "dateReserved": "2026-09-17T16:02:15.088Z",
    "dateUpdated": "2026-09-17T16:11:40.761Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-09-18T00:11:40Z",
      "cve": "CVE-2026-93141",
      "id": "CVE-2026-93141",
      "initial_release_date": "2026-09-18T00:11:40Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-93141",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-93141.json",
      "version": "2"
    }
  }
}



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  • 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.
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  • 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.


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