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oesa-2025-2271
Vulnerability from osv_openeuler
Published
2025-09-12 11:09
Modified
2026-08-06 11:09
Summary
kernel security update
Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved: do_change_type() now refuses to operate on unmounted mounts or mounts not belonging to the caller's mount namespace. This change aligns permission checking with the rest of mount(2).(CVE-2025-38498)

In the Linux kernel, the following vulnerability has been resolved:

ftrace: Also allocate and copy hash for reading of filter files

Currently the reader of set_ftrace_filter and set_ftrace_notrace just adds the pointer to the global tracer hash to its iterator. Unlike the writer that allocates a copy of the hash, the reader keeps the pointer to the filter hashes. This is problematic because this pointer is static across function calls that release the locks that can update the global tracer hashes. This can cause UAF and similar bugs.

Allocate and copy the hash for reading the filter files like it is done for the writers. This not only fixes UAF bugs, but also makes the code a bit simpler as it doesn't have to differentiate when to free the iterator's hash between writers and readers.(CVE-2025-39689)


{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "bpftool-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "bpftool-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-debugsource-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-devel-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-source-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-tools-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-tools-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "kernel-tools-devel-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "perf-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "perf-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "python2-perf-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "python2-perf-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "python3-perf-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm",
          "python3-perf-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.aarch64.rpm"
        ],
        "src": [
          "kernel-4.19.90-2509.4.0.0343.oe2003sp4.src.rpm"
        ],
        "x86_64": [
          "bpftool-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "bpftool-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-debugsource-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-devel-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-source-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-tools-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-tools-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "kernel-tools-devel-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "perf-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "perf-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "python2-perf-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "python2-perf-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "python3-perf-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm",
          "python3-perf-debuginfo-4.19.90-2509.4.0.0343.oe2003sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP4",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.19.90-2509.4.0.0343.oe2003sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nIn the Linux kernel, the following vulnerability has been resolved: do_change_type() now refuses to operate on unmounted mounts or mounts not belonging to the caller\u0026apos;s mount namespace. This change aligns permission checking with the rest of mount(2).(CVE-2025-38498)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Also allocate and copy hash for reading of filter files\n\nCurrently the reader of set_ftrace_filter and set_ftrace_notrace just adds\nthe pointer to the global tracer hash to its iterator. Unlike the writer\nthat allocates a copy of the hash, the reader keeps the pointer to the\nfilter hashes. This is problematic because this pointer is static across\nfunction calls that release the locks that can update the global tracer\nhashes. This can cause UAF and similar bugs.\n\nAllocate and copy the hash for reading the filter files like it is done\nfor the writers. This not only fixes UAF bugs, but also makes the code a\nbit simpler as it doesn\u0026apos;t have to differentiate when to free the\niterator\u0026apos;s hash between writers and readers.(CVE-2025-39689)",
  "id": "OESA-2025-2271",
  "modified": "2026-08-06T11:09:20Z",
  "published": "2025-09-12T11:09:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2271"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38498"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39689"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2025-38498",
    "CVE-2025-39689"
  ]
}



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