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CVE-2026-90136 platform/x86/amd/hsmp: Reject negative power cap writes in hwmon

🗓️ 17 Sep 2026 16:06:35Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 20 Views

Linux kernel amd/hsmp hwmon accepts negative power cap writes sending bogus limit to SMU.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-90136
17 Sep 202616:06
cve
debiancve
Debian CVE
CVE-2026-90136
17 Sep 202616:06
debiancve
euvd
EUVD
EUVD-2026-81729
17 Sep 202616:06
euvd
nvd
NVD
CVE-2026-90136
17 Sep 202617:17
nvd
osv
OSV
DEBIAN-CVE-2026-90136
17 Sep 202617:17
osv
osv
OSV
UBUNTU-CVE-2026-90136
18 Sep 202600:00
osv
ubuntucve
UbuntuCve
CVE-2026-90136
18 Sep 202600:00
ubuntucve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/platform/x86/amd/hsmp/hwmon.c"
    ],
    "versions": [
      {
        "version": "92c025db52bb94a032eb3d473bb81e62c19ddbd3",
        "lessThan": "2c09cadec116eba3fdbcb5d8d8641f6777d4a11f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "92c025db52bb94a032eb3d473bb81e62c19ddbd3",
        "lessThan": "1b0a3d915320f1600e5ff43f8bc21b73118480b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "92c025db52bb94a032eb3d473bb81e62c19ddbd3",
        "lessThan": "3921bb8635ff2836622df1cdf3194d4f3c1835a4",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/platform/x86/amd/hsmp/hwmon.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.52",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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