FKIE_CVE-2026-72150

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-18 07:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix uninitialized xprt_create_args structure The xprt_create_args structure is allocated on the stack without initialization in rpc_sysfs_xprt_switch_add_xprt_store(). While some fields are manually populated, critical fields like srcaddr, bc_xps, and flags contain uninitialized stack garbage. This can lead to: 1. Kernel panic when xs_setup_xprt() dereferences garbage srcaddr 2. Information leak if srcaddr points to sensitive stack data 3. Unpredictable behavior if flags has random bits set The fix is to zero-initialize the structure to ensure all unused fields are NULL/0, preventing the transport setup code from acting on garbage data.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/17d90b68c3a3d7d7e95b49e1fe9381a723f637a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/933654508b2bc36e2c3c086c0365e2403fb2141f
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "933654508b2bc36e2c3c086c0365e2403fb2141f",
              "status": "affected",
              "version": "df210d9b0951d714c1668c511ca5c8ff38cf6916",
              "versionType": "git"
            },
            {
              "lessThan": "7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3",
              "status": "affected",
              "version": "df210d9b0951d714c1668c511ca5c8ff38cf6916",
              "versionType": "git"
            },
            {
              "lessThan": "17d90b68c3a3d7d7e95b49e1fe9381a723f637a8",
              "status": "affected",
              "version": "df210d9b0951d714c1668c511ca5c8ff38cf6916",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/sunrpc/sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsunrpc: fix uninitialized xprt_create_args structure\n\nThe xprt_create_args structure is allocated on the stack without\ninitialization in rpc_sysfs_xprt_switch_add_xprt_store(). While some\nfields are manually populated, critical fields like srcaddr, bc_xps,\nand flags contain uninitialized stack garbage.\n\nThis can lead to:\n1. Kernel panic when xs_setup_xprt() dereferences garbage srcaddr\n2. Information leak if srcaddr points to sensitive stack data\n3. Unpredictable behavior if flags has random bits set\n\nThe fix is to zero-initialize the structure to ensure all unused\nfields are NULL/0, preventing the transport setup code from acting\non garbage data."
    }
  ],
  "id": "CVE-2026-72150",
  "lastModified": "2026-08-18T07:16:52.933",
  "metrics": {},
  "published": "2026-08-15T06:21:32.727",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/17d90b68c3a3d7d7e95b49e1fe9381a723f637a8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/933654508b2bc36e2c3c086c0365e2403fb2141f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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