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CVE-2026-64398 ksmbd: add a permission check for FSCTL_SET_ZERO_DATA

🗓️ 25 Jul 2026 08:50:42Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a permission check for FSCTL_SET_ZERO_DATA FSCTL_SET_ZERO_DATA in smb2_ioctl() destroys file data viaksmbd_vfs_zero_data() -> vfs_fallocate(PUNCH_HOLE/ZERO_RANGE) af...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-64398
25 Jul 202608:50
cve
Debian CVE
CVE-2026-64398
25 Jul 202608:50
debiancve
EUVD
EUVD-2026-48942
25 Jul 202608:50
euvd
NVD
CVE-2026-64398
25 Jul 202610:17
nvd
OSV
CVE-2026-64398 ksmbd: add a permission check for FSCTL_SET_ZERO_DATA
25 Jul 202608:50
osv
OSV
DEBIAN-CVE-2026-64398
25 Jul 202610:17
osv
OSV
ECHO-3F49-5B1B-EB24
26 Jul 202602:26
osv
Positive Technologies
PT-2026-64619
25 Jul 202600:00
ptsecurity
SUSE CVE
SUSE CVE-2026-64398
25 Jul 202616:00
susecve
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-64398
25 Jul 202600:00
nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "25377f369688dd0bd814dc8965ed26d44238ecaa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "3072d82461f498c85daea8766e9d8bfbada31605",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "ca53bb17f4e8232cfaece3953d3cef62c559b039",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "57f2042fd87d7ce8fc3ac8b6c176e554df68b1a7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "deffa929086d7902e30918adf3dd27ccfe9c08b1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "3320ba068198adc144c89d6661b805acce01735b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0",
        "lessThan": "6.1.178",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "6.6.145",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "6.12.96",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "6.18.39",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "7.1.4",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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25 Jul 2026 08:50Current
EPSS0.00225
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