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CVE-2026-64063 netfs: Fix streaming write being overwritten

🗓️ 19 Jul 2026 15:39:42Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Linux kernel netfs fix for streaming writes being overwritten to properly free or update netfs_folio.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/netfs/buffered_write.c",
      "include/trace/events/netfs.h"
    ],
    "versions": [
      {
        "version": "8f52de0077ba3bf41e5d53d67a185700f41efce7",
        "lessThan": "20195925c768626dc901a4781a51e508702c88ad",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f52de0077ba3bf41e5d53d67a185700f41efce7",
        "lessThan": "ef9b521212e4863814ef7dfe19889abaf55ca840",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f52de0077ba3bf41e5d53d67a185700f41efce7",
        "lessThan": "cdae00e8e215d95911d95f100599e187b6560de5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8f52de0077ba3bf41e5d53d67a185700f41efce7",
        "lessThan": "7b4dcf1b9455a6e52ac7478b4057dbe10359576d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/netfs/buffered_write.c",
      "include/trace/events/netfs.h"
    ],
    "versions": [
      {
        "version": "6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.92",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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