{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-52985",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-52985"
  ],
  "published": "2026-06-24T16:31:02Z",
  "summary": "netdevsim: zero initialize struct iphdr in dummy sk_buff",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: zero initialize struct iphdr in dummy sk_buff\n\nSyzbot reports a KMSAN uninit-value originating from\nnsim_dev_trap_skb_build, with the allocation also\nbeing performed in the same function.\n\nFix this by calling skb_put_zero instead of skb_put to\nguarantee zero initialization of the whole IP header.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.175",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-52985"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/175556c049eaec14efde8c6475e763b7579b9de7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6e2cfd0904976e701d7a76b86b694e72af230ab0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1b7b6ae0e93b8d512e208b1378d74af052e4f4e7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/818f7673ed7f4a29d4b9cee8184c47d6e57162b4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/978ca6ff789f1f19c03288ac20cc1f4774e88490"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/750d0091bebf44975421268d37484ef87060d263"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bc6002865e8c4fcf9e94975f7cf023448d8764e2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/35eaa6d8d6c2ee65e96f507add856e0eacf24591"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-24T16:31:02Z"
  }
}