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CVE-2026-80584 s390/qeth: validate user buffer length in SNMP and ARP query ioctls

🗓️ 26 Aug 2026 14:37:40Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 44 Views

Unsigned underflow in s390/qeth SNMP and ARP query ioctls causes out-of-bounds write.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/net/qeth_core_main.c",
      "drivers/s390/net/qeth_l3_main.c"
    ],
    "versions": [
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "9d00eeb2d27f4cc817c5e408760226d43f811ec6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "46443eaddebd84c51940857b11787229be169dec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "91935843f9396a9e45253e2c0d4337ca1371754b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "cc423f4105fe145b33e1d7cad34245a798358f73",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "3083818e67bcd656965797fbac9a3d6c1d44f78a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "a3083647747942ea32faf14560d6397ff3068046",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "75fb3151513d7d9f77a8f9545418279b119c06b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
        "lessThan": "d141f087b1af656f055d7c5793a3e87817ba0bbe",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/net/qeth_core_main.c",
      "drivers/s390/net/qeth_l3_main.c"
    ],
    "versions": [
      {
        "version": "2.6.26",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.26",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.266",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.217",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.184",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.153",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.105",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.46",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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