CVE-2026-68324 (GCVE-0-2026-68324)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:03 – Updated: 2026-08-19 16:33
VLAI
Title
iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/intel: Fix out-of-bounds memset in dmar_latency_disable() dmar_latency_disable() intends to zero out only the single latency_statistic entry for the given type, but the memset size was computed as sizeof(*lstat) * DMAR_LATENCY_NUM, which clears the entire array starting from &lstat[type]. When type > 0, this writes beyond the end of the allocated array, corrupting adjacent memory. Fix by using sizeof(*lstat) to clear only the target entry.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < 80f3605991461679c298ea2045c350ee3cf36de3 (git)
Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < 104d89cf5b01cb66ff975d91ed42f61b3904df53 (git)
Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < 3078d82e7fe9048a2b90a992e71af7cd7ef881fa (git)
Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < 866a35735e56b9dc81cbc33899255134adf6d8b3 (git)
Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < d06fea9b85f038690f55e72fe0c45e113715a85a (git)
Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < 0e28ca1c3204b51068579defc904a0dfba5e5c57 (git)
Affected: 55ee5e67a59a1b6f388d7a1c7b24022145f47a3e , < 754f8efe45f87e3a9c6871b645b2f9d46d1b407b (git)
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Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (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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        "dateUpdated": "2026-08-19T16:33:15.575Z",
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-12T21:45:59+00:00",
      "cve": "CVE-2026-68324",
      "id": "CVE-2026-68324",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "44",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: iommu/intel: Fix out-of-bounds memset in dmar_latency_disable()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68324.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-11T23:47:51Z",
      "cve": "CVE-2026-68324",
      "id": "CVE-2026-68324",
      "initial_release_date": "2026-08-11T23:47:51Z",
      "product_status:known_affected": "217",
      "product_status:known_not_affected": "79",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68324",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68324.json",
      "version": "2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.