Skip to content
Heist/ feed
Unrated

smb: client: close handle after create-context parsing failure

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: smb: client: close handle after create-context parsing failure SMB2_open() accounts a successful CREATE response as a remote open before parsing its create contexts. If smb2_parse_contexts() rejects malformed context data, SMB2_open() returns without closing the handle, leaving the server-side handle open and num_remote_opens elevated. Close the handle after a post-CREATE context parsing failure so the error path releases the remote resource and balances the open count.

Announced Source revision 1
Original source ↗

CVE-2026-98453

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98453

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "17a0f64cc02d4972e21c733d9f21d1c512963afa",
        "lessThan": "eaa97a196a107d4ef8775df2248181624151812e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "af1689a9b7701d9907dfc84d2a4b57c4bc907144",
        "lessThan": "80c67cc71d32ccafc89a29b669243b40d81b930f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "af1689a9b7701d9907dfc84d2a4b57c4bc907144",
        "lessThan": "f09875ff901e933e7b22c913daf51d21e9d93a45",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "af1689a9b7701d9907dfc84d2a4b57c4bc907144",
        "lessThan": "cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "af1689a9b7701d9907dfc84d2a4b57c4bc907144",
        "lessThan": "566820af017e81497fb5e9d3ad6e7ffe2828bc8b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6726429c18c62dbf5e96ebbd522f262e016553fb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "13fb0fc4917621f3dfa285a27eaf7151d770b5e5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "890bc4fac3c0973a49cac35f634579bebba7fe48",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1ae3c59355dc9882e09c020afe8ffbd895ad0f29",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6.6.8",
        "lessThan": "6.6.160",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.4.277",
        "lessThan": "5.5",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.10.211",
        "lessThan": "5.11",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.150",
        "lessThan": "5.16",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.79",
        "lessThan": "6.2",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "fs/smb/client/smb2pdu.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.7",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.113",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.56",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.9",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/smb/client/smb2pdu.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98453

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#48881 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement