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CVE-2025-68750 (GCVE-0-2025-68750)

Vulnerability from cvelistv5 – Published: 2025-12-24 15:51 – Updated: 2026-05-11 21:52
VLAI
Title
usb: potential integer overflow in usbg_make_tpg()
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: potential integer overflow in usbg_make_tpg() The variable tpgt in usbg_make_tpg() is defined as unsigned long and is assigned to tpgt->tport_tpgt, which is defined as u16. This may cause an integer overflow when tpgt is greater than USHRT_MAX (65535). I haven't tried to trigger it myself, but it is possible to trigger it by calling usbg_make_tpg() with a large value for tpgt. I modified the type of tpgt to match tpgt->tport_tpgt and adjusted the relevant code accordingly. This patch is similar to commit 59c816c1f24d ("vhost/scsi: potential memory corruption").
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24 (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 603a83e5fee38a950bfcfb2f36449311fa00a474 (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 6f77e344515b5258edb3988188311464209b1c7c (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 6722e080b5b39ab7471386c73d0c1b39572f943c (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < a33f507f36d5881f602dab581ab0f8d22b49762c (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 358d5ba08f1609c34a054aed88c431844d09705a (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 620a5e1e84a3a7004270703a118d33eeb1c0f368 (git)
Affected: c52661d60f636d17e26ad834457db333bd1df494 , < 153874010354d050f62f8ae25cbb960c17633dc5 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.5
Unaffected: 0 , < 3.5 (semver)
Unaffected: 5.4.296 , ≤ 5.4.* (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.187 , ≤ 5.15.* (semver)
Unaffected: 6.1.143 , ≤ 6.1.* (semver)
Unaffected: 6.6.96 , ≤ 6.6.* (semver)
Unaffected: 6.12.36 , ≤ 6.12.* (semver)
Unaffected: 6.15.5 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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                  "versionStartIncluding": "3.5",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: potential integer overflow in usbg_make_tpg()\n\nThe variable tpgt in usbg_make_tpg() is defined as unsigned long and is\nassigned to tpgt-\u003etport_tpgt, which is defined as u16. This may cause an\ninteger overflow when tpgt is greater than USHRT_MAX (65535). I\nhaven\u0027t tried to trigger it myself, but it is possible to trigger it\nby calling usbg_make_tpg() with a large value for tpgt.\n\nI modified the type of tpgt to match tpgt-\u003etport_tpgt and adjusted the\nrelevant code accordingly.\n\nThis patch is similar to commit 59c816c1f24d (\"vhost/scsi: potential\nmemory corruption\")."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:52:37.371Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24"
        },
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          "url": "https://git.kernel.org/stable/c/603a83e5fee38a950bfcfb2f36449311fa00a474"
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          "url": "https://git.kernel.org/stable/c/6f77e344515b5258edb3988188311464209b1c7c"
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          "url": "https://git.kernel.org/stable/c/153874010354d050f62f8ae25cbb960c17633dc5"
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      "title": "usb: potential integer overflow in usbg_make_tpg()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68750",
    "datePublished": "2025-12-24T15:51:03.141Z",
    "dateReserved": "2025-12-24T10:30:51.032Z",
    "dateUpdated": "2026-05-11T21:52:37.371Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-09-16",
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    },
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I\\nhaven\u0027t tried to trigger it myself, but it is possible to trigger it\\nby calling usbg_make_tpg() with a large value for tpgt.\\n\\nI modified the type of tpgt to match tpgt-\u003etport_tpgt and adjusted the\\nrelevant code accordingly.\\n\\nThis patch is similar to commit 59c816c1f24d (\\\"vhost/scsi: potential\\nmemory corruption\\\").\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/usb/gadget/function/f_tcm.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"603a83e5fee38a950bfcfb2f36449311fa00a474\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"6f77e344515b5258edb3988188311464209b1c7c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"6722e080b5b39ab7471386c73d0c1b39572f943c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"a33f507f36d5881f602dab581ab0f8d22b49762c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"358d5ba08f1609c34a054aed88c431844d09705a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"620a5e1e84a3a7004270703a118d33eeb1c0f368\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c52661d60f636d17e26ad834457db333bd1df494\",\"lessThan\":\"153874010354d050f62f8ae25cbb960c17633dc5\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/usb/gadget/function/f_tcm.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.5\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.5\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.296\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.240\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.187\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.143\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.96\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.36\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15.5\",\"lessThanOrEqual\":\"6.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.16\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0861b9cb2ff519b7c5a3b1dd52a343e18c4efb24\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/153874010354d050f62f8ae25cbb960c17633dc5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/358d5ba08f1609c34a054aed88c431844d09705a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/603a83e5fee38a950bfcfb2f36449311fa00a474\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/620a5e1e84a3a7004270703a118d33eeb1c0f368\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6722e080b5b39ab7471386c73d0c1b39572f943c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6f77e344515b5258edb3988188311464209b1c7c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a33f507f36d5881f602dab581ab0f8d22b49762c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T01:53:30+00:00",
      "cve": "CVE-2025-68750",
      "id": "CVE-2025-68750",
      "initial_release_date": "2025-12-24T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: potential integer overflow in usbg_make_tpg()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68750.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T01:49:18Z",
      "cve": "CVE-2025-68750",
      "id": "CVE-2025-68750",
      "initial_release_date": "2025-12-25T00:23:18Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "595",
      "product_status:known_not_affected": "239",
      "product_status:recommended": "384",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-68750",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-68750.json",
      "version": "36"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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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.
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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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