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CVE-2026-64541 net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket

🗓️ 27 Jul 2026 20:10:34Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

Fix use-after-free in smc_cdc_rx_handler by pinning socket under lock to prevent UAF CVE-2026-64541.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-64541
27 Jul 202620:10
cve
Debian CVE
CVE-2026-64541
27 Jul 202620:10
debiancve
EUVD
EUVD-2026-49592
27 Jul 202620:10
euvd
NVD
CVE-2026-64541
27 Jul 202621:17
nvd
OSV
CVE-2026-64541 net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket
27 Jul 202620:10
osv
OSV
DEBIAN-CVE-2026-64541
27 Jul 202621:17
osv
OSV
UBUNTU-CVE-2026-64541
28 Jul 202600:00
osv
Positive Technologies
PT-2026-65216
27 Jul 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/smc/smc_cdc.c"
    ],
    "versions": [
      {
        "version": "d7b0e37c1ac152905b18a5b9506179091a35b0b6",
        "lessThan": "8de4f665d0febfb92803dece377791a563fc7041",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d7b0e37c1ac152905b18a5b9506179091a35b0b6",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d7b0e37c1ac152905b18a5b9506179091a35b0b6",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d7b0e37c1ac152905b18a5b9506179091a35b0b6",
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        "status": "affected",
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      },
      {
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        "lessThan": "472e9d7c0d5b03be3ff91ff941f57da822b031bc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d7b0e37c1ac152905b18a5b9506179091a35b0b6",
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        "status": "affected",
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      },
      {
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      },
      {
        "version": "d7b0e37c1ac152905b18a5b9506179091a35b0b6",
        "lessThan": "9d160b35cc34a2ba8229d07651468a7848325135",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/smc/smc_cdc.c"
    ],
    "versions": [
      {
        "version": "4.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "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.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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