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CVE-2026-64388 smb/client: fix chown/chgrp with SMB3 POSIX Extensions

🗓️ 25 Jul 2026 08:50:36Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership (chown) and group (chgrp) modifications were being ignored whenmounting with SMB3 POSIX Extensions unless CIFS_MOU...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-64388
25 Jul 202608:50
cve
EUVD
EUVD-2026-48932
25 Jul 202608:50
euvd
NVD
CVE-2026-64388
25 Jul 202610:17
nvd
Positive Technologies
PT-2026-64609
25 Jul 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/client/inode.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "550cfb8a81181331d4d0f76ab75ee58a0bf41e3e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "760ef2c579c2609cf17fb1cd5392f64d42d43d33",
        "status": "affected",
        "versionType": "git"
      },
      {
        "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/client/inode.c"
    ],
    "versions": [
      {
        "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
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