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net/smc: Do not re-initialize smc hashtables

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net/smc: Do not re-initialize smc hashtables INIT_HLIST_HEAD(&smc_v*_hashinfo.ht) are called after smc_nl_init(), proto_register() and sock_register(). This can lead to smc_v*_hashinfo.ht being reset even though hash entries already exist and are being used, possibly resulting in a corrupted list. Remove unnecessary and dangerous re-initialisation of smc_v*_hashinfo.ht in smc_init(); it is implicitly initialised to zero anyhow. Add HLIST_HEAD_INIT to the definitions for clarity.

Announced Group revision 1
Original source ↗

CVE-2026-64005

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-2026-64005

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": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "cdc79c05cc375f68ae87b0c74fdaac1a5c93155a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "2006605006e5a4a11d93e1ebdbbe95764d24276f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "64c96e497d5ada0b90e99bf58f893aa2b73dcfbc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "ed7a758313011885347b854e97cb95903ef3c3f7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "0cc9d0ac22d02f1ba1884de5d6de9eaf8b45d82d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "55cba6b883b41e5922c00ba9d4e3262131f46f1b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "5ec939367e700722ffbb1b7cacccbb1a3cf0ebd1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f16a7dd5cf27eeda187425c9c7d96802a549f9c4",
        "lessThan": "9e4389b0038781f19f97895186ed941ff8ac1678",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/smc/af_smc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.11"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.11",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.259",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.210",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.176",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.143",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.93",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.35",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.12",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/smc/af_smc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-64005

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40930 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-64005 · Revision 1Source updated