CVE-2026-72150 (GCVE-0-2026-72150)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:53 – Updated: 2026-08-18 06:56
VLAI
Title
sunrpc: fix uninitialized xprt_create_args structure
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: df210d9b0951d714c1668c511ca5c8ff38cf6916 , < 933654508b2bc36e2c3c086c0365e2403fb2141f (git)
Affected: df210d9b0951d714c1668c511ca5c8ff38cf6916 , < 7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3 (git)
Affected: df210d9b0951d714c1668c511ca5c8ff38cf6916 , < 17d90b68c3a3d7d7e95b49e1fe9381a723f637a8 (git)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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              "operator": "OR"
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T06:56:12.877Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/17d90b68c3a3d7d7e95b49e1fe9381a723f637a8"
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      "title": "sunrpc: fix uninitialized xprt_create_args structure",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72150",
    "datePublished": "2026-08-15T05:53:21.440Z",
    "dateReserved": "2026-08-09T03:40:39.908Z",
    "dateUpdated": "2026-08-18T06:56:12.877Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-18T13:34:36+00:00",
      "cve": "CVE-2026-72150",
      "id": "CVE-2026-72150",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: sunrpc: fix uninitialized xprt_create_args structure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72150.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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