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CVE-2026-72422 ksmbd: fix use-after-free of conn->preauth_info in concurrent SMB2 NEGOTIATE

🗓️ 15 Aug 2026 05:56:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

ksmbd use-after-free of conn->preauth_info during concurrent SMB2 NEGOTIATE requests in Linux kernel.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-72422
15 Aug 202600:00
cve
debiancve
Debian CVE
CVE-2026-72422
15 Aug 202600:00
debiancve
euvd
EUVD
EUVD-2026-59321
15 Aug 202605:56
euvd
nvd
NVD
CVE-2026-72422
15 Aug 202606:22
nvd
ptsecurity
Positive Technologies
PT-2026-72610
15 Aug 202600:00
ptsecurity
[
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    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
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  },
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    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
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      },
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        "version": "0",
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        "status": "unaffected",
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      {
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        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
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      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
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        "versionType": "semver"
      },
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      },
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        "lessThanOrEqual": "7.1.*",
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        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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