CVE-2026-46315 io_uring/waitid: clear waitid info before copying it to userspace

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/waitid.c"
    ],
    "versions": [
      {
        "version": "f31ecf671ddc498f20219453395794ff2383e06b",
        "lessThan": "954518e5a4a5efc5033253f6e36fc7b9f98363a3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f31ecf671ddc498f20219453395794ff2383e06b",
        "lessThan": "b737c6612c60c23b40a9f31749b99e6f61943847",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f31ecf671ddc498f20219453395794ff2383e06b",
        "lessThan": "4d2a0de611ab60d02fc768ae0cd5918b16bd5474",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f31ecf671ddc498f20219453395794ff2383e06b",
        "lessThan": "93d93f5f8da791e98159795c6ef683f45bd95d13",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "io_uring/waitid.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.92",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]