{
  "cveId": "CVE-2022-49286",
  "url": "https://patchblox.com/security/cve/CVE-2022-49286",
  "summary": "CVE-2022-49286 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49286, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  tpm: use try_get_ops() in tpm-space.c  As part o...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tpm: use try_get_ops() in tpm-space.c  As part of the series conversion to remove nested TPM operations:  https://lore.kernel.org/all/20190205224723.19671-1-jarkko.sakkinen@linux.intel.com/  exposure of the chip-\u003Etpm_mutex was removed from much of the upper level code.  In this conversion, tpm2_del_space() was missed.  This didn\u0027t matter much because it\u0027s usually called closely after a converted operation, so there\u0027s only a very tiny race window where the chip can be removed before the space flushing is done which causes a NULL deref on the mutex.  However, there are reports of this window being hit in practice, so fix this by converting tpm2_del_space() to use tpm_try_get_ops(), which performs all the teardown checks before acquring the mutex.",
  "published": "2025-02-26T07:01:05Z",
  "severity": "medium",
  "cvss": 4.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00238,
  "epssPercentile": 0.14983,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49286",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49286",
      "released": "2025-02-26T07:01:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49286",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49286",
      "released": "2025-02-26T07:01:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49286",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49286",
      "released": "2025-02-26T07:01:05Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}