Vulnerability-Lookup

GHSA-6392-WC5J-GPP8

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-19 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: safe_serial: fix memory corruption with small endpoint

Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-63957"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:17:14Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: safe_serial: fix memory corruption with small endpoint\n\nMake sure that the bulk-out buffer size is at least eight bytes to avoid\nuser-controlled slab corruption in \"safe\" mode should a malicious device\nreport a smaller size.",
  "id": "GHSA-6392-wc5j-gpp8",
  "modified": "2026-07-19T18:31:47Z",
  "published": "2026-07-19T18:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63957"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/438061ed1ad85e6743e2dce826671772d81089ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/857b3cc73f91871ae4433f8b97c4670b78f8dc96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b3145b3001fb24de1da72d1deb0bea70e5a078b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a550ed2117ca4709d38f713933ff924a83942e41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7336c0fba5c959249f3d793d33076b992ec3ee4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3a1d6eee25dc96b1d2db0ecd9d8741e92056476"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f793b67d41e5fab719c5a90baa77cbd2fe259517"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-63957 (GCVE-0-2026-63957)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-19 14:55

Title

USB: serial: safe_serial: fix memory corruption with small endpoint

Summary

In the Linux kernel, the following vulnerability has been resolved: USB: serial: safe_serial: fix memory corruption with small endpoint Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e3a1d6eee25dc96b1…
https://git.kernel.org/stable/c/c7336c0fba5c95924…
https://git.kernel.org/stable/c/161ea0e5236f5f051…
https://git.kernel.org/stable/c/9b3145b3001fb24de…
https://git.kernel.org/stable/c/a550ed2117ca4709d…
https://git.kernel.org/stable/c/f793b67d41e5fab71…
https://git.kernel.org/stable/c/857b3cc73f91871ae…
https://git.kernel.org/stable/c/438061ed1ad85e674…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e3a1d6eee25dc96b1d2db0ecd9d8741e92056476 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c7336c0fba5c959249f3d793d33076b992ec3ee4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9b3145b3001fb24de1da72d1deb0bea70e5a078b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a550ed2117ca4709d38f713933ff924a83942e41 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f793b67d41e5fab719c5a90baa77cbd2fe259517 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 857b3cc73f91871ae4433f8b97c4670b78f8dc96 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 438061ed1ad85e6743e2dce826671772d81089ec (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/serial/safe_serial.c"
          ],
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          "vendor": "Linux",
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            {
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              "status": "affected",
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T14:55:48.196Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2026-07-19T14:55:48.196Z",
    "dateReserved": "2026-07-19T07:54:57.023Z",
    "dateUpdated": "2026-07-19T14:55:48.196Z",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-6392-WC5J-GPP8

CVE-2026-63957 (GCVE-0-2026-63957)

Tags

Sightings

Nomenclature