CVE-2025-38056 (GCVE-0-2025-38056)
Vulnerability from cvelistv5
Published
2025-06-18 09:33
Modified
2025-06-18 09:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: Intel: hda: Fix UAF when reloading module hda_generic_machine_select() appends -idisp to the tplg filename by allocating a new string with devm_kasprintf(), then stores the string right back into the global variable snd_soc_acpi_intel_hda_machines. When the module is unloaded, this memory is freed, resulting in a global variable pointing to freed memory. Reloading the module then triggers a use-after-free: BUG: KFENCE: use-after-free read in string+0x48/0xe0 Use-after-free read at 0x00000000967e0109 (in kfence-#99): string+0x48/0xe0 vsnprintf+0x329/0x6e0 devm_kvasprintf+0x54/0xb0 devm_kasprintf+0x58/0x80 hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic] sof_probe_work+0x7f/0x600 [snd_sof] process_one_work+0x17b/0x330 worker_thread+0x2ce/0x3f0 kthread+0xcf/0x100 ret_from_fork+0x31/0x50 ret_from_fork_asm+0x1a/0x30 kfence-#99: 0x00000000198a940f-0x00000000ace47d9d, size=64, cache=kmalloc-64 allocated by task 333 on cpu 8 at 17.798069s (130.453553s ago): devm_kmalloc+0x52/0x120 devm_kvasprintf+0x66/0xb0 devm_kasprintf+0x58/0x80 hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic] sof_probe_work+0x7f/0x600 [snd_sof] process_one_work+0x17b/0x330 worker_thread+0x2ce/0x3f0 kthread+0xcf/0x100 ret_from_fork+0x31/0x50 ret_from_fork_asm+0x1a/0x30 freed by task 1543 on cpu 4 at 141.586686s (6.665010s ago): release_nodes+0x43/0xb0 devres_release_all+0x90/0xf0 device_unbind_cleanup+0xe/0x70 device_release_driver_internal+0x1c1/0x200 driver_detach+0x48/0x90 bus_remove_driver+0x6d/0xf0 pci_unregister_driver+0x42/0xb0 __do_sys_delete_module+0x1d1/0x310 do_syscall_64+0x82/0x190 entry_SYSCALL_64_after_hwframe+0x76/0x7e Fix it by copying the match array with devm_kmemdup_array() before we modify it.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5458411d75947a4212e50a401ec0a98d4c6c931b
Version: 5458411d75947a4212e50a401ec0a98d4c6c931b
Version: 5458411d75947a4212e50a401ec0a98d4c6c931b
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/sof/intel/hda.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2b49e68360eb6a1c03dc1642a51f7d9f6784c034",
              "status": "affected",
              "version": "5458411d75947a4212e50a401ec0a98d4c6c931b",
              "versionType": "git"
            },
            {
              "lessThan": "f9670b2e81e8a3cbf2e1e757190dd0b920a9d43f",
              "status": "affected",
              "version": "5458411d75947a4212e50a401ec0a98d4c6c931b",
              "versionType": "git"
            },
            {
              "lessThan": "7dd7f39fce0022b386ef1ea5ffef92ecc7dfc6af",
              "status": "affected",
              "version": "5458411d75947a4212e50a401ec0a98d4c6c931b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/sof/intel/hda.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.12"
            },
            {
              "lessThan": "6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.31",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.31",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.9",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: Intel: hda: Fix UAF when reloading module\n\nhda_generic_machine_select() appends -idisp to the tplg filename by\nallocating a new string with devm_kasprintf(), then stores the string\nright back into the global variable snd_soc_acpi_intel_hda_machines.\nWhen the module is unloaded, this memory is freed, resulting in a global\nvariable pointing to freed memory.  Reloading the module then triggers\na use-after-free:\n\nBUG: KFENCE: use-after-free read in string+0x48/0xe0\n\nUse-after-free read at 0x00000000967e0109 (in kfence-#99):\n string+0x48/0xe0\n vsnprintf+0x329/0x6e0\n devm_kvasprintf+0x54/0xb0\n devm_kasprintf+0x58/0x80\n hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic]\n sof_probe_work+0x7f/0x600 [snd_sof]\n process_one_work+0x17b/0x330\n worker_thread+0x2ce/0x3f0\n kthread+0xcf/0x100\n ret_from_fork+0x31/0x50\n ret_from_fork_asm+0x1a/0x30\n\nkfence-#99: 0x00000000198a940f-0x00000000ace47d9d, size=64, cache=kmalloc-64\n\nallocated by task 333 on cpu 8 at 17.798069s (130.453553s ago):\n devm_kmalloc+0x52/0x120\n devm_kvasprintf+0x66/0xb0\n devm_kasprintf+0x58/0x80\n hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic]\n sof_probe_work+0x7f/0x600 [snd_sof]\n process_one_work+0x17b/0x330\n worker_thread+0x2ce/0x3f0\n kthread+0xcf/0x100\n ret_from_fork+0x31/0x50\n ret_from_fork_asm+0x1a/0x30\n\nfreed by task 1543 on cpu 4 at 141.586686s (6.665010s ago):\n release_nodes+0x43/0xb0\n devres_release_all+0x90/0xf0\n device_unbind_cleanup+0xe/0x70\n device_release_driver_internal+0x1c1/0x200\n driver_detach+0x48/0x90\n bus_remove_driver+0x6d/0xf0\n pci_unregister_driver+0x42/0xb0\n __do_sys_delete_module+0x1d1/0x310\n do_syscall_64+0x82/0x190\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFix it by copying the match array with devm_kmemdup_array() before we\nmodify it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T09:33:36.482Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2b49e68360eb6a1c03dc1642a51f7d9f6784c034"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9670b2e81e8a3cbf2e1e757190dd0b920a9d43f"
        },
        {
          "url": "https://git.kernel.org/stable/c/7dd7f39fce0022b386ef1ea5ffef92ecc7dfc6af"
        }
      ],
      "title": "ASoC: SOF: Intel: hda: Fix UAF when reloading module",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38056",
    "datePublished": "2025-06-18T09:33:36.482Z",
    "dateReserved": "2025-04-16T04:51:23.979Z",
    "dateUpdated": "2025-06-18T09:33:36.482Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38056\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T10:15:38.340\",\"lastModified\":\"2025-06-18T13:46:52.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nASoC: SOF: Intel: hda: Fix UAF when reloading module\\n\\nhda_generic_machine_select() appends -idisp to the tplg filename by\\nallocating a new string with devm_kasprintf(), then stores the string\\nright back into the global variable snd_soc_acpi_intel_hda_machines.\\nWhen the module is unloaded, this memory is freed, resulting in a global\\nvariable pointing to freed memory.  Reloading the module then triggers\\na use-after-free:\\n\\nBUG: KFENCE: use-after-free read in string+0x48/0xe0\\n\\nUse-after-free read at 0x00000000967e0109 (in kfence-#99):\\n string+0x48/0xe0\\n vsnprintf+0x329/0x6e0\\n devm_kvasprintf+0x54/0xb0\\n devm_kasprintf+0x58/0x80\\n hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic]\\n sof_probe_work+0x7f/0x600 [snd_sof]\\n process_one_work+0x17b/0x330\\n worker_thread+0x2ce/0x3f0\\n kthread+0xcf/0x100\\n ret_from_fork+0x31/0x50\\n ret_from_fork_asm+0x1a/0x30\\n\\nkfence-#99: 0x00000000198a940f-0x00000000ace47d9d, size=64, cache=kmalloc-64\\n\\nallocated by task 333 on cpu 8 at 17.798069s (130.453553s ago):\\n devm_kmalloc+0x52/0x120\\n devm_kvasprintf+0x66/0xb0\\n devm_kasprintf+0x58/0x80\\n hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic]\\n sof_probe_work+0x7f/0x600 [snd_sof]\\n process_one_work+0x17b/0x330\\n worker_thread+0x2ce/0x3f0\\n kthread+0xcf/0x100\\n ret_from_fork+0x31/0x50\\n ret_from_fork_asm+0x1a/0x30\\n\\nfreed by task 1543 on cpu 4 at 141.586686s (6.665010s ago):\\n release_nodes+0x43/0xb0\\n devres_release_all+0x90/0xf0\\n device_unbind_cleanup+0xe/0x70\\n device_release_driver_internal+0x1c1/0x200\\n driver_detach+0x48/0x90\\n bus_remove_driver+0x6d/0xf0\\n pci_unregister_driver+0x42/0xb0\\n __do_sys_delete_module+0x1d1/0x310\\n do_syscall_64+0x82/0x190\\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\nFix it by copying the match array with devm_kmemdup_array() before we\\nmodify it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: SOF: Intel: hda: Se corrige el UAF al recargar el m\u00f3dulo. hda_generic_machine_select() a\u00f1ade -idisp al nombre de archivo tplg asignando una nueva cadena con devm_kasprintf() y luego la almacena directamente en la variable global snd_soc_acpi_intel_hda_machines. Al descargar el m\u00f3dulo, se libera esta memoria, lo que genera una variable global que apunta a la memoria liberada. Recargar el m\u00f3dulo luego activa un use-after-free: ERROR: KFENCE: use-after-free read in string+0x48/0xe0 Use-after-free read at 0x00000000967e0109 (in kfence-#99): string+0x48/0xe0 vsnprintf+0x329/0x6e0 devm_kvasprintf+0x54/0xb0 devm_kasprintf+0x58/0x80 hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic] sof_probe_work+0x7f/0x600 [snd_sof] process_one_work+0x17b/0x330 worker_thread+0x2ce/0x3f0 kthread+0xcf/0x100 ret_from_fork+0x31/0x50 ret_from_fork_asm+0x1a/0x30 kfence-#99: 0x00000000198a940f-0x00000000ace47d9d, size=64, cache=kmalloc-64 allocated by task 333 on cpu 8 at 17.798069s (130.453553s ago): devm_kmalloc+0x52/0x120 devm_kvasprintf+0x66/0xb0 devm_kasprintf+0x58/0x80 hda_machine_select.cold+0x198/0x17a2 [snd_sof_intel_hda_generic] sof_probe_work+0x7f/0x600 [snd_sof] process_one_work+0x17b/0x330 worker_thread+0x2ce/0x3f0 kthread+0xcf/0x100 ret_from_fork+0x31/0x50 ret_from_fork_asm+0x1a/0x30 freed by task 1543 on cpu 4 at 141.586686s (6.665010s ago): release_nodes+0x43/0xb0 devres_release_all+0x90/0xf0 device_unbind_cleanup+0xe/0x70 device_release_driver_internal+0x1c1/0x200 driver_detach+0x48/0x90 bus_remove_driver+0x6d/0xf0 pci_unregister_driver+0x42/0xb0 __do_sys_delete_module+0x1d1/0x310 do_syscall_64+0x82/0x190 entry_SYSCALL_64_after_hwframe+0x76/0x7e Corr\u00edjalo copiando la matriz de coincidencia con devm_kmemdup_array() antes de modificarla.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2b49e68360eb6a1c03dc1642a51f7d9f6784c034\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7dd7f39fce0022b386ef1ea5ffef92ecc7dfc6af\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f9670b2e81e8a3cbf2e1e757190dd0b920a9d43f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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