CVE-2026-68180 (GCVE-0-2026-68180)

Vulnerability from cvelistv5 – Published: 2026-08-10 11:59 – Updated: 2026-08-19 16:30
VLAI
Title
intel_th: fix MSC output device reference leak
Summary
In the Linux kernel, the following vulnerability has been resolved: intel_th: fix MSC output device reference leak intel_th_output_open() looks up the output device with bus_find_device_by_devt(), which returns the device with a reference that must be dropped after use. commit 95fc36a234da ("intel_th: fix device leak on output open()") attempted to drop the reference from intel_th_output_release(). However, a successful open replaces file->f_op with the output driver file operations before returning, so close runs the output driver release callback instead. For MSC outputs, close runs intel_th_msc_release(), which only removes the per-file iterator and does not drop the device reference taken by intel_th_output_open(). Consequently, every successful MSC output open leaks one device reference. Drop the device reference from intel_th_msc_release(), which is the release path actually used for MSC output files. Remove the now-unused intel_th_output_release() callback from intel_th_output_fops.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: af4b9467296b9a16ebc008147238070236982b6d , < 12ad4fad748e6e563ff4480f03b89134a41b5c37 (git)
Affected: 64015cbf06e8bb75b81ae95b997e847b55280f7f , < df55842fddbcdb80e6dd16680439c0f780ed592e (git)
Affected: b71e64ef7ff9443835d1333e3e80ab1e49e5209f , < 141641a70ed337e54487f766ede745fc2ce44c42 (git)
Affected: bf7785434b5d05d940d936b78925080950bd54dd , < ddcf2064d7ec5a8c9afa7cb74442320e443502bc (git)
Affected: 0fca16c5591534cc1fec8b6181277ee3a3d0f26c , < 26e27b8dcef1e4df6f30d8f25b3304a506d482b3 (git)
Affected: f9b059bda4276f2bb72cb98ec7875a747f042ea2 , < caba30eb8bd321c465ecfc7d850ee85f5b353496 (git)
Affected: 95fc36a234da24bbc5f476f8104a5a15f99ed3e3 , < c3a28f9cb82425fe0835048ed3677f321e780691 (git)
Affected: 95fc36a234da24bbc5f476f8104a5a15f99ed3e3 , < 761b785a0cfbce43761227bc42a7f984f31f8921 (git)
Affected: 5.10.249 , < 5.10.265 (semver)
Affected: 5.15.199 , < 5.15.216 (semver)
Affected: 6.1.162 , < 6.1.183 (semver)
Affected: 6.6.122 , < 6.6.148 (semver)
Affected: 6.12.68 , < 6.12.101 (semver)
Affected: 6.18.8 , < 6.18.42 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 5.10.265 , ≤ 5.10.* (semver)
Unaffected: 5.15.216 , ≤ 5.15.* (semver)
Unaffected: 6.1.183 , ≤ 6.1.* (semver)
Unaffected: 6.6.148 , ≤ 6.6.* (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: fix MSC output device reference leak\n\nintel_th_output_open() looks up the output device with\nbus_find_device_by_devt(), which returns the device with a reference that\nmust be dropped after use.\n\ncommit 95fc36a234da (\"intel_th: fix device leak on output open()\")\nattempted to drop the reference from intel_th_output_release(). However,\na successful open replaces file-\u003ef_op with the output driver file\noperations before returning, so close runs the output driver release\ncallback instead.\n\nFor MSC outputs, close runs intel_th_msc_release(), which only removes\nthe per-file iterator and does not drop the device reference taken by\nintel_th_output_open(). Consequently, every successful MSC output open\nleaks one device reference.\n\nDrop the device reference from intel_th_msc_release(), which is the\nrelease path actually used for MSC output files. Remove the now-unused\nintel_th_output_release() callback from intel_th_output_fops."
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-13T22:52:43+00:00",
      "cve": "CVE-2026-68180",
      "id": "CVE-2026-68180",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "275",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: intel_th: fix MSC output device reference leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68180.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-17T16:29:31Z",
      "cve": "CVE-2026-68180",
      "id": "CVE-2026-68180",
      "initial_release_date": "2026-08-13T16:23:28Z",
      "product_status:known_not_affected": "296",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68180",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68180.json",
      "version": "3"
    }
  }
}



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