{
  "cveId": "CVE-2026-98686",
  "url": "https://patchblox.com/security/cve/CVE-2026-98686",
  "summary": "CVE-2026-98686 is fixed in 39 products on 1 platform, first by DEBIAN-CVE-2026-98686, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "smb: client: discard post-EOF pagecache when extending a file via zero range",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  smb: client: discard post-EOF pagecache when extending a file via zero range  smb3_zero_range() removed the pagecache only for the range being zeroed, so when it extends the file the folio straddling the old EOF - which may hold data dirtied past EOF through an mmap - was never dropped and became visible as file content once the file was extended.  Lower the discard boundary to the smaller of the zero-range offset and the old EOF.",
  "published": "2026-10-18T16:17:21Z",
  "severity": "Important",
  "cvss": 7.1,
  "epss": 0.00172,
  "epssPercentile": 0.06674,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98686",
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.12",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.12-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.12.113-138.209",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.56-125.164",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.12-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98686",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98686",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.10-1",
      "fix": "DEBIAN-CVE-2026-98686",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98686",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98686",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98686",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "microvm-kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "perf6.12",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "perf6.12-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.12",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.12-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.56-125.164.amzn2023",
      "fix": "ALAS2023-2026-3251",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3251",
      "released": "2026-11-07T01:06:52Z"
    }
  ],
  "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"
  }
}