CVE-2026-43126 (GCVE-0-2026-43126)
Vulnerability from cvelistv5
Published
2026-05-06 11:27
Modified
2026-05-11 22:18
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: mixer: oss: Add card disconnect checkpoints ALSA OSS mixer layer calls the kcontrol ops rather individually, and pending calls might be not always caught at disconnecting the device. For avoiding the potential UAF scenarios, add sanity checks of the card disconnection at each entry point of OSS mixer accesses. The rwsem is taken just before that check, hence the rest context should be covered by that properly.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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          "product": "Linux",
          "programFiles": [
            "sound/core/oss/mixer_oss.c"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: mixer: oss: Add card disconnect checkpoints\n\nALSA OSS mixer layer calls the kcontrol ops rather individually, and\npending calls might be not always caught at disconnecting the device.\n\nFor avoiding the potential UAF scenarios, add sanity checks of the\ncard disconnection at each entry point of OSS mixer accesses.  The\nrwsem is taken just before that check, hence the rest context should\nbe covered by that properly."
        }
      ],
      "metrics": [
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        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/084d5d44418148662365eced3e126ad1a81ee3e2"
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    "cveId": "CVE-2026-43126",
    "datePublished": "2026-05-06T11:27:15.765Z",
    "dateReserved": "2026-05-01T14:12:55.988Z",
    "dateUpdated": "2026-05-11T22:18:15.674Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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