{
  "fix": "RHSA-2026:55765",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2026-55765",
  "summary": "RHSA-2026:55765, released August 19, 2026, fixes 11 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 12 packages",
  "released": "2026-08-19T23:17:39Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-53374, rated Critical",
  "supported": true,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00409,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2026:55765",
  "appliesTo": [
    {
      "product": "kernel-rt",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-core",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-core",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-debug",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-debug",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-debug-core",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-debug-core",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-debug-devel",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-debug-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-debug-kvm",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-debug-kvm",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-debug-modules",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-debug-modules",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-debug-modules-extra",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-debug-modules-extra",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-devel",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-kvm",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-kvm",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-modules",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-modules",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    },
    {
      "product": "kernel-rt-modules-extra",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt-modules-extra",
      "release": "RHEL 8",
      "fixedVersion": "0:4.18.0-553.156.1.rt7.497.el8_10",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-53374",
      "url": "https://patchblox.com/security/cve/CVE-2026-53374",
      "title": "drm/amdgpu: zero-initialize GART table on allocation",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00127,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-74580",
      "url": "https://patchblox.com/security/cve/CVE-2026-74580",
      "title": "vhost: reset the vring metadata cache on vring reconfiguration",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.8,
      "epss": 0.00409,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-63884",
      "url": "https://patchblox.com/security/cve/CVE-2026-63884",
      "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: m...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00176,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-39902",
      "url": "https://patchblox.com/security/cve/CVE-2025-39902",
      "title": "mm/slub: avoid accessing metadata when pointer is invalid in object_err()",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00167,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-64219",
      "url": "https://patchblox.com/security/cve/CVE-2026-64219",
      "title": "drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00166,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-17523",
      "url": "https://patchblox.com/security/cve/CVE-2026-17523",
      "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: m...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00165,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-53329",
      "url": "https://patchblox.com/security/cve/CVE-2026-53329",
      "title": "drm/amd/display: Use krealloc_array() in dal_vector_reserve()",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00147,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-63879",
      "url": "https://patchblox.com/security/cve/CVE-2026-63879",
      "title": "drm/amdgpu: fix amdgpu_hmm_range_get_pages",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00142,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-53016",
      "url": "https://patchblox.com/security/cve/CVE-2026-53016",
      "title": "crypto: ccp - copy IV using skcipher ivsize",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00141,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-43206",
      "url": "https://patchblox.com/security/cve/CVE-2026-43206",
      "title": "kernel-zfcpdump-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: m...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00139,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-53136",
      "url": "https://patchblox.com/security/cve/CVE-2026-53136",
      "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: m...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00129,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}