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CVE-2026-52985 netdevsim: zero initialize struct iphdr in dummy sk_buff

🗓️ 24 Jun 2026 16:28:59Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

CVE-2026-52985: netdevsim zero-initializes the header in dummy sk_buff via skb_put_zero to fix KMSAN uninit.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/netdevsim/dev.c"
    ],
    "versions": [
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "175556c049eaec14efde8c6475e763b7579b9de7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "6e2cfd0904976e701d7a76b86b694e72af230ab0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "1b7b6ae0e93b8d512e208b1378d74af052e4f4e7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "818f7673ed7f4a29d4b9cee8184c47d6e57162b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "978ca6ff789f1f19c03288ac20cc1f4774e88490",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "750d0091bebf44975421268d37484ef87060d263",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "bc6002865e8c4fcf9e94975f7cf023448d8764e2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "da58f90f11f597520f226caff1d3cfc115abedc9",
        "lessThan": "35eaa6d8d6c2ee65e96f507add856e0eacf24591",
        "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/net/netdevsim/dev.c"
    ],
    "versions": [
      {
        "version": "5.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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