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CVE-2026-31478 ksmbd: replace hardcoded hdr2_len with offsetof() in smb2_calc_max_out_buf_len()

🗓️ 22 Apr 2026 13:54:06Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

ksmbd replaces hardcoded hdr2_len with offsetof in smb2_calc_max_out_buf_len and fixes call sites.

Related
Affected
Refs
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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": "f2283680a80571ca82d710bc6ecd8f8beac67d63",
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        "versionType": "git"
      },
      {
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      },
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      {
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      },
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      },
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  },
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    "programFiles": [
      "fs/smb/server/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.168",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
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      },
      {
        "version": "6.6.131",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.80",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.21",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.11",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 16:05Current
CVSS 3.19.8
EPSS0.00502
30