CVE-2025-38559 (GCVE-0-2025-38559)

Vulnerability from cvelistv5 – Published: 2025-08-19 17:02 – Updated: 2025-09-29 05:53
VLAI?
Title
platform/x86/intel/pmt: fix a crashlog NULL pointer access
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86/intel/pmt: fix a crashlog NULL pointer access Usage of the intel_pmt_read() for binary sysfs, requires a pcidev. The current use of the endpoint value is only valid for telemetry endpoint usage. Without the ep, the crashlog usage causes the following NULL pointer exception: BUG: kernel NULL pointer dereference, address: 0000000000000000 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:intel_pmt_read+0x3b/0x70 [pmt_class] Code: Call Trace: <TASK> ? sysfs_kf_bin_read+0xc0/0xe0 kernfs_fop_read_iter+0xac/0x1a0 vfs_read+0x26d/0x350 ksys_read+0x6b/0xe0 __x64_sys_read+0x1d/0x30 x64_sys_call+0x1bc8/0x1d70 do_syscall_64+0x6d/0x110 Augment struct intel_pmt_entry with a pointer to the pcidev to avoid the NULL pointer exception.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 045a513040cc0242d364c05c3791594e2294f32d , < 860d93bd6a21f08883711196344c353bc3936a2b (git)
Affected: 045a513040cc0242d364c05c3791594e2294f32d , < 18d53b543b5447478e259c96ca4688393f327c98 (git)
Affected: 045a513040cc0242d364c05c3791594e2294f32d , < 089d05266b2caf020ac2ae2cd2be78f580268f5d (git)
Affected: 045a513040cc0242d364c05c3791594e2294f32d , < 54d5cd4719c5e87f33d271c9ac2e393147d934f8 (git)
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    Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/intel/pmt/class.c",
            "drivers/platform/x86/intel/pmt/class.h"
          ],
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          "vendor": "Linux",
          "versions": [
            {
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              "versionType": "git"
            },
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              "lessThan": "18d53b543b5447478e259c96ca4688393f327c98",
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              "versionType": "git"
            }
          ]
        },
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          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/intel/pmt/class.c",
            "drivers/platform/x86/intel/pmt/class.h"
          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "6.12"
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "6.12.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.42",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.10",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86/intel/pmt: fix a crashlog NULL pointer access\n\nUsage of the intel_pmt_read() for binary sysfs, requires a pcidev. The\ncurrent use of the endpoint value is only valid for telemetry endpoint\nusage.\n\nWithout the ep, the crashlog usage causes the following NULL pointer\nexception:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nOops: Oops: 0000 [#1] SMP NOPTI\nRIP: 0010:intel_pmt_read+0x3b/0x70 [pmt_class]\nCode:\nCall Trace:\n \u003cTASK\u003e\n ? sysfs_kf_bin_read+0xc0/0xe0\n kernfs_fop_read_iter+0xac/0x1a0\n vfs_read+0x26d/0x350\n ksys_read+0x6b/0xe0\n __x64_sys_read+0x1d/0x30\n x64_sys_call+0x1bc8/0x1d70\n do_syscall_64+0x6d/0x110\n\nAugment struct intel_pmt_entry with a pointer to the pcidev to avoid\nthe NULL pointer exception."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:53:46.873Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/860d93bd6a21f08883711196344c353bc3936a2b"
        },
        {
          "url": "https://git.kernel.org/stable/c/18d53b543b5447478e259c96ca4688393f327c98"
        },
        {
          "url": "https://git.kernel.org/stable/c/089d05266b2caf020ac2ae2cd2be78f580268f5d"
        },
        {
          "url": "https://git.kernel.org/stable/c/54d5cd4719c5e87f33d271c9ac2e393147d934f8"
        }
      ],
      "title": "platform/x86/intel/pmt: fix a crashlog NULL pointer access",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38559",
    "datePublished": "2025-08-19T17:02:37.020Z",
    "dateReserved": "2025-04-16T04:51:24.025Z",
    "dateUpdated": "2025-09-29T05:53:46.873Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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