CVE-2026-90273 (GCVE-0-2026-90273)
Vulnerability from cvelistv5
Published
2026-09-17 16:08
Modified
2026-10-30 12:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable In the perf enable path, there are missing cases where cscfg_csdev_disable_active_config() is not called: - Branch broadcast is selected but not supported by the hardware - etm4_enable_hw() fails This can lead to a leak of config_desc->active_cnt. Fix this by properly calling cscfg_csdev_disable_active_config() in these error paths.
References
Impacted products
Vendor Product Version
Linux Linux Version: 810ac401db1fe432020d7936a199591000de8279
Version: 810ac401db1fe432020d7936a199591000de8279
Version: 810ac401db1fe432020d7936a199591000de8279
Version: 810ac401db1fe432020d7936a199591000de8279
Version: 810ac401db1fe432020d7936a199591000de8279
Version: 810ac401db1fe432020d7936a199591000de8279
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable\n\nIn the perf enable path, there are missing cases where\ncscfg_csdev_disable_active_config() is not called:\n\n  - Branch broadcast is selected but not supported by the hardware\n  - etm4_enable_hw() fails\n\nThis can lead to a leak of config_desc-\u003eactive_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:35:02.543Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/f097b6969e9961365358fc5ba5892db2f284f020"
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          "url": "https://git.kernel.org/stable/c/ba63c62d4252f6bc58fd2a567075c72d03332562"
        },
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          "url": "https://git.kernel.org/stable/c/26f9e89bad5a7e3005d3dc97a2e2fa6d6b2b8bb6"
        },
        {
          "url": "https://git.kernel.org/stable/c/d5f3dae82705d9388434892915008da3bb83c4ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752"
        }
      ],
      "title": "coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90273",
    "datePublished": "2026-09-17T16:08:06.638Z",
    "dateReserved": "2026-09-11T19:38:34.797Z",
    "dateUpdated": "2026-10-30T12:35:02.543Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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