CVE-2026-98751 (GCVE-0-2026-98751)
Vulnerability from cvelistv5
Published
2026-10-18 15:47
Modified
2026-10-30 12:39
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: tty: abort break signalling on hangup The break ioctls can race with hangup and end up calling into a tty driver for a device that is already gone or powered down. Drivers must handle this race, but TCSBRK and TCSBRKP should still be aborted to avoid calling back into the driver after a user-controlled timeout (possibly even after the tty has been reopened). Note that drivers should disable any break state on shutdown so just return on hangup (calling break_ctl() again is racy and will most likely fail for drivers handling the race).
References
Impacted products
Vendor Product Version
Linux Linux Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
Version: f34d7a5b7010b82fe97da95496b9971435530062
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{
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          "programFiles": [
            "drivers/tty/tty_io.c",
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: abort break signalling on hangup\n\nThe break ioctls can race with hangup and end up calling into a tty\ndriver for a device that is already gone or powered down.\n\nDrivers must handle this race, but TCSBRK and TCSBRKP should still be\naborted to avoid calling back into the driver after a user-controlled\ntimeout (possibly even after the tty has been reopened).\n\nNote that drivers should disable any break state on shutdown so just\nreturn on hangup (calling break_ctl() again is racy and will most likely\nfail for drivers handling the race)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:39:21.567Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/70fa2bec352d9f949b882af3c380b916e4a29a43"
        },
        {
          "url": "https://git.kernel.org/stable/c/8224d25534580d07925607bbd617daf9c8de26c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a0f0f9ef41cb80de4d5da4ae146df3075463f6b"
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        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/845a2737e0f5ffe5ca8d38de556012b0c9472cdd"
        }
      ],
      "title": "tty: abort break signalling on hangup",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98751",
    "datePublished": "2026-10-18T15:47:36.026Z",
    "dateReserved": "2026-09-25T10:25:14.368Z",
    "dateUpdated": "2026-10-30T12:39:21.567Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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