Vulnerability-Lookup

FKIE_CVE-2025-68370

Vulnerability from fkie_nvd - Published: 2025-12-24 11:16 - Updated: 2026-07-30 06:24

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: coresight: tmc: add the handle of the event to the path The handle is essential for retrieving the AUX_EVENT of each CPU and is required in perf mode. It has been added to the coresight_path so that dependent devices can access it from the path when needed. The existing bug can be reproduced with: perf record -e cs_etm//k -C 0-9 dd if=/dev/zero of=/dev/null Showing an oops as follows: Unable to handle kernel paging request at virtual address 000f6e84934ed19e Call trace: tmc_etr_get_buffer+0x30/0x80 [coresight_tmc] (P) catu_enable_hw+0xbc/0x3d0 [coresight_catu] catu_enable+0x70/0xe0 [coresight_catu] coresight_enable_path+0xb0/0x258 [coresight]

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aaa5abcc9d44d2c8484f779ab46d242d774cabcb
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d0c9effd82f2c19b92acd07d357fac5f392d549a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/faa8f38f7ccb344ace2c1f364efc70e3a12d32f3

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-etm-perf.c",
            "drivers/hwtracing/coresight/coresight-tmc-etr.c",
            "include/linux/coresight.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "faa8f38f7ccb344ace2c1f364efc70e3a12d32f3",
              "status": "affected",
              "version": "080ee83cc361451a7de7b5486c7f96ce454f7203",
              "versionType": "git"
            },
            {
              "lessThan": "d0c9effd82f2c19b92acd07d357fac5f392d549a",
              "status": "affected",
              "version": "080ee83cc361451a7de7b5486c7f96ce454f7203",
              "versionType": "git"
            },
            {
              "lessThan": "aaa5abcc9d44d2c8484f779ab46d242d774cabcb",
              "status": "affected",
              "version": "080ee83cc361451a7de7b5486c7f96ce454f7203",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-etm-perf.c",
            "drivers/hwtracing/coresight/coresight-tmc-etr.c",
            "include/linux/coresight.h"
          ],
          "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": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "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\ncoresight: tmc: add the handle of the event to the path\n\nThe handle is essential for retrieving the AUX_EVENT of each CPU and is\nrequired in perf mode. It has been added to the coresight_path so that\ndependent devices can access it from the path when needed.\n\nThe existing bug can be reproduced with:\nperf record -e cs_etm//k -C 0-9 dd if=/dev/zero of=/dev/null\n\nShowing an oops as follows:\nUnable to handle kernel paging request at virtual address 000f6e84934ed19e\n\nCall trace:\n tmc_etr_get_buffer+0x30/0x80 [coresight_tmc] (P)\n catu_enable_hw+0xbc/0x3d0 [coresight_catu]\n catu_enable+0x70/0xe0 [coresight_catu]\n coresight_enable_path+0xb0/0x258 [coresight]"
    }
  ],
  "id": "CVE-2025-68370",
  "lastModified": "2026-07-30T06:24:40.660",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-24T11:16:00.573",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aaa5abcc9d44d2c8484f779ab46d242d774cabcb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d0c9effd82f2c19b92acd07d357fac5f392d549a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/faa8f38f7ccb344ace2c1f364efc70e3a12d32f3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2025-68370 (GCVE-0-2025-68370)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:32 – Updated: 2026-08-05 12:11

Title

coresight: tmc: add the handle of the event to the path

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/faa8f38f7ccb344ac…
https://git.kernel.org/stable/c/d0c9effd82f2c19b9…
https://git.kernel.org/stable/c/aaa5abcc9d44d2c84…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 080ee83cc361451a7de7b5486c7f96ce454f7203 , < faa8f38f7ccb344ace2c1f364efc70e3a12d32f3 (git) Affected: 080ee83cc361451a7de7b5486c7f96ce454f7203 , < d0c9effd82f2c19b92acd07d357fac5f392d549a (git) Affected: 080ee83cc361451a7de7b5486c7f96ce454f7203 , < aaa5abcc9d44d2c8484f779ab46d242d774cabcb (git)
Linux	Linux	Affected: 6.15 Unaffected: 0 , < 6.15 (semver) Unaffected: 6.17.13 , ≤ 6.17.* (semver) Unaffected: 6.18.2 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-etm-perf.c",
            "drivers/hwtracing/coresight/coresight-tmc-etr.c",
            "include/linux/coresight.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "faa8f38f7ccb344ace2c1f364efc70e3a12d32f3",
              "status": "affected",
              "version": "080ee83cc361451a7de7b5486c7f96ce454f7203",
              "versionType": "git"
            },
            {
              "lessThan": "d0c9effd82f2c19b92acd07d357fac5f392d549a",
              "status": "affected",
              "version": "080ee83cc361451a7de7b5486c7f96ce454f7203",
              "versionType": "git"
            },
            {
              "lessThan": "aaa5abcc9d44d2c8484f779ab46d242d774cabcb",
              "status": "affected",
              "version": "080ee83cc361451a7de7b5486c7f96ce454f7203",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-etm-perf.c",
            "drivers/hwtracing/coresight/coresight-tmc-etr.c",
            "include/linux/coresight.h"
          ],
          "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": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.13",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.2",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: tmc: add the handle of the event to the path\n\nThe handle is essential for retrieving the AUX_EVENT of each CPU and is\nrequired in perf mode. It has been added to the coresight_path so that\ndependent devices can access it from the path when needed.\n\nThe existing bug can be reproduced with:\nperf record -e cs_etm//k -C 0-9 dd if=/dev/zero of=/dev/null\n\nShowing an oops as follows:\nUnable to handle kernel paging request at virtual address 000f6e84934ed19e\n\nCall trace:\n tmc_etr_get_buffer+0x30/0x80 [coresight_tmc] (P)\n catu_enable_hw+0xbc/0x3d0 [coresight_catu]\n catu_enable+0x70/0xe0 [coresight_catu]\n coresight_enable_path+0xb0/0x258 [coresight]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached locally through perf_event_open(), perf AUX-buffer mmap, and event enablement for the CoreSight ETM PMU.\nAC:L - Triggering is deterministic on an affected TMC-ETR/CATU topology and requires no race; any heap grooming needed for deeper exploitation remains attacker-controlled.\nPR:L - An unprivileged user can use a self-targeted, user-only cs_etm//u event, avoiding both perf_allow_cpu() and perf_allow_kernel(). User-namespace capabilities are unnecessary.\nUI:N - The attacker can create, map, and enable the perf event directly without action by another user.\nS:U - The vulnerable CoreSight driver and the affected kernel memory and execution context belong to the same kernel security authority.\nC:H - The coresight_path-to-perf_output_handle type confusion causes out-of-bounds heap reads and attacker-groomable pointer chasing. Successful exploitation can provide kernel-memory disclosure as part of the resulting memory-access primitive.\nI:H - Bogus etr_buf fields can program CATU translation or pass-through state incorrectly, allowing ETR DMA to target unintended physical memory and potentially corrupt kernel data or code.\nA:H - The documented trigger produces a kernel paging-request oops, which can panic the system or leave it unusable and can be invoked repeatedly."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:11:06.086Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/faa8f38f7ccb344ace2c1f364efc70e3a12d32f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/d0c9effd82f2c19b92acd07d357fac5f392d549a"
        },
        {
          "url": "https://git.kernel.org/stable/c/aaa5abcc9d44d2c8484f779ab46d242d774cabcb"
        }
      ],
      "title": "coresight: tmc: add the handle of the event to the path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68370",
    "datePublished": "2025-12-24T10:32:56.149Z",
    "dateReserved": "2025-12-16T14:48:05.309Z",
    "dateUpdated": "2026-08-05T12:11:06.086Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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