CVE-2026-98696 (GCVE-0-2026-98696)
Vulnerability from cvelistv5
Published
2026-10-18 15:46
Modified
2026-10-21 12:55
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix driver deregistration order USB serial driver modules register one driver for the USB bus and one or more drivers for the ports on the USB serial bus. When unloading a driver module, the USB driver must be deregistered before the USB serial bus drivers so that I/O is stopped before unbinding the ports to avoid use-after-free in completion handlers accessing port data. Note that the "new_id" attributes must first be removed to prevent new ids from being added and triggering a probe of the USB driver after it has been deregistered.
References
Impacted products
Vendor Product Version
Linux Linux Version: 765e0ba62613fb90f09c1b5926750df0aa56f349
Version: 765e0ba62613fb90f09c1b5926750df0aa56f349
Version: 765e0ba62613fb90f09c1b5926750df0aa56f349
Version: 765e0ba62613fb90f09c1b5926750df0aa56f349
Version: 765e0ba62613fb90f09c1b5926750df0aa56f349
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/serial/bus.c",
            "drivers/usb/serial/usb-serial.c",
            "include/linux/usb/serial.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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          "programFiles": [
            "drivers/usb/serial/bus.c",
            "drivers/usb/serial/usb-serial.c",
            "include/linux/usb/serial.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.4"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.160",
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              "status": "unaffected",
              "version": "6.12.113",
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              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
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            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: fix driver deregistration order\n\nUSB serial driver modules register one driver for the USB bus and one or\nmore drivers for the ports on the USB serial bus.\n\nWhen unloading a driver module, the USB driver must be deregistered\nbefore the USB serial bus drivers so that I/O is stopped before\nunbinding the ports to avoid use-after-free in completion handlers\naccessing port data.\n\nNote that the \"new_id\" attributes must first be removed to prevent new\nids from being added and triggering a probe of the USB driver after it\nhas been deregistered."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:55:45.691Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e7ad832b1144df19cbbaaa655625c6f984e85b9f"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe"
        },
        {
          "url": "https://git.kernel.org/stable/c/a1aa474768f69ea3a70da523f00f74c264cfa10e"
        },
        {
          "url": "https://git.kernel.org/stable/c/428d479a0d31460fbf5969ab262ccd673f1fac01"
        },
        {
          "url": "https://git.kernel.org/stable/c/646e5b28b4fdbc1b828a2398d6ced2c1dd308a46"
        }
      ],
      "title": "USB: serial: fix driver deregistration order",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98696",
    "datePublished": "2026-10-18T15:46:20.399Z",
    "dateReserved": "2026-09-25T10:25:14.365Z",
    "dateUpdated": "2026-10-21T12:55:45.691Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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