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CVE-2026-43139 xfrm6: fix uninitialized saddr in xfrm6_get_saddr()

🗓️ 06 May 2026 11:27:24Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Fix uninitialized saddr in xfrm6_get_saddr by propagating ipv6_dev_saddr errors to avoid KMSAN.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/xfrm6_policy.c"
    ],
    "versions": [
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "4f28141786e1fe884ce42a5197ba9beed540f0ea",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "6535867673bf301d52aa00593a4d1d18cc3922fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "eb2ee15290af14c60b45cf2b73f5687d1d077d9b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "719918fc88df6da023dfff370cd965151a5afd7f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "dc0abce055134cb83b0d981d31ceb20dda419787",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "c7221e7bd8fc2ef38a0b27be580d9d202281306b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "3dcd1664ac15eee6a690daec7c4ffc59190406f7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a1e59abf824969554b90facd44a4ab16e265afa4",
        "lessThan": "1799d8abeabc68ec05679292aaf6cba93b343c05",
        "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/ipv6/xfrm6_policy.c"
    ],
    "versions": [
      {
        "version": "2.6.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.252",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.202",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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