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CVE-2026-31559 LoongArch: Fix missing NULL checks for kstrdup()

🗓️ 24 Apr 2026 14:35:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 43 Views

LoongArch fixes kstrdup NULL checks, uses of_root, and prevents early boot oops during CPU model parsing.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/loongarch/kernel/env.c"
    ],
    "versions": [
      {
        "version": "facc69f43502c135c16b97d5ded7253f15597912",
        "lessThan": "5e7fde2c551f86e6c3de3fd7a9b1f52806ac8db0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8",
        "lessThan": "a1da957c25cf751a2dce8fb7777f82ccbac0cb3e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8",
        "lessThan": "b61a309743322fb57fb9afa9aa3495ac758e4f5e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "70a2365e18affc5ebdaab1ca6a0b3c4f3aac2ee8",
        "lessThan": "3a28daa9b7d7c2ddf2c722e9e95d7e0928bf0cd1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "620805dc674eab3055543496a7ef25beb9ffd2a8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8dfeedf9eceadc1a2fc9066b4c5230690d1cad48",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.12.43",
        "lessThan": "6.12.80",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.15.11",
        "lessThan": "6.16",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.16.2",
        "lessThan": "6.17",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/loongarch/kernel/env.c"
    ],
    "versions": [
      {
        "version": "6.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.80",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.21",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.11",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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