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CVE-2026-46155 smb/client: fix out-of-bounds read in smb2_compound_op()

🗓️ 28 May 2026 09:36:11Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 35 Views

Fix kernel out-of-bounds read in smb2_compound_op when server truncates response with large OutputBufferLength.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/client/smb2inode.c"
    ],
    "versions": [
      {
        "version": "7449d736bbbd160c76b01b8fcdf72f58a8757d4b",
        "lessThan": "dffb44b2e06a2908e249f0f93156fc987eee1d1c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
        "lessThan": "9b3af35645ff9cd334edc130249f9a2fb2bea25f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
        "lessThan": "512d33bc8ea4ea5c19728ee118715f4b1f4d1926",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
        "lessThan": "a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
        "lessThan": "8d09328dfda089675e4c049f3f256064a1d1996b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.6.32",
        "lessThan": "6.6.140",
        "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/smb2inode.c"
    ],
    "versions": [
      {
        "version": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.140",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.88",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.30",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.7",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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