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usb: gadget: r8a66597: avoid double free of ep0_req in probe error path

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-93141

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93141

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "c9e93290ffe7db22a8131a5f5fd026335090fbbe",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "7721cf32efa428bd9649f4a9b89fc85601df87de",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "f9c43246128a2dd0f2bbad71decf153910ce3606",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "150d3f3c461345b6c9ae784912cf1e49c8e5ff6b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "b2e68583c7c51eea2aafb8f1793e0d285c56ac82",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "6648c470918371766f6d368113dd2a4faebac93f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "6be64cca6527f7fc99b05abf54f22db91bbc116f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "776976a67ae25d18be42794fd783a50757402cbe",
        "lessThan": "41d541e3718db01668a4cd29815ee4b3b55f76d2",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/usb/gadget/udc/r8a66597-udc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.17"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.17",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/usb/gadget/udc/r8a66597-udc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-93141

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#37862 · Revision 1
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Publisher date
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