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CVE-2026-80979

🗓️ 11 Sep 2026 19:42:40Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 27 Views🌐 WEB

Use-after-free in Linux kernel net/smc where a re-armed rx tasklet dereferences a freed send buffer.

Related
Detection
Affected
Refs
Paths
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.6.66–6.6.157
OR
linuxlinux_kernelRange6.10–6.6.157
linuxlinux_kernelRange6.7.0–6.12.109
linuxlinux_kernelRange6.13.0–6.18.50
linuxlinux_kernelRange6.19.0–7.2.4
linuxlinux_kernelRange7.3.0–7.3-rc1
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/smc/smc_core.c"
    ],
    "versions": [
      {
        "version": "21f6f41e82e59740e26e06e77bdf58dc7f6f08dd",
        "lessThan": "b6b6ac713ee82b340a8e3be30b101bd2840deec4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae2be35cbed2c8385e890147ea321a3fcc3ca5fa",
        "lessThan": "b4d540ac95cd35c6ebab6afb7eae2bcac7b277a5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae2be35cbed2c8385e890147ea321a3fcc3ca5fa",
        "lessThan": "5bd8b764a610b6b6bc0c4d3d01652747f6e0b5c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae2be35cbed2c8385e890147ea321a3fcc3ca5fa",
        "lessThan": "b74d313567dfc1b7e56629ddbad04e728686f235",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ae2be35cbed2c8385e890147ea321a3fcc3ca5fa",
        "lessThan": "36cdf5d48ca191dcd71c28cadbe0981b1d25318d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.6.66",
        "lessThan": "6.6.157",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/smc/smc_core.c"
    ],
    "versions": [
      {
        "version": "6.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
00000

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14 Sep 2026 13:18Current
6Medium risk
Vulners AI Score6
CVSS 3.17.8
EPSS0.00175
27