CVE-2025-23161 (GCVE-0-2025-23161)

Vulnerability from cvelistv5 – Published: 2025-05-01 12:55 – Updated: 2026-01-02 15:28
VLAI?
Title
PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type The access to the PCI config space via pci_ops::read and pci_ops::write is a low-level hardware access. The functions can be accessed with disabled interrupts even on PREEMPT_RT. The pci_lock is a raw_spinlock_t for this purpose. A spinlock_t becomes a sleeping lock on PREEMPT_RT, so it cannot be acquired with disabled interrupts. The vmd_dev::cfg_lock is accessed in the same context as the pci_lock. Make vmd_dev::cfg_lock a raw_spinlock_t type so it can be used with interrupts disabled. This was reported as: BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 Call Trace: rt_spin_lock+0x4e/0x130 vmd_pci_read+0x8d/0x100 [vmd] pci_user_read_config_byte+0x6f/0xe0 pci_read_config+0xfe/0x290 sysfs_kf_bin_read+0x68/0x90 [bigeasy: reword commit message] Tested-off-by: Luis Claudio R. Goncalves <lgoncalv@redhat.com> [kwilczynski: commit log] [bhelgaas: add back report info from https://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < c250262d6485ca333e9821f85b07eb383ec546b1 (git)
Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < c2968c812339593ac6e2bdd5cc3adabe3f05fa53 (git)
Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < 13e5148f70e81991acbe0bab5b1b50ba699116e7 (git)
Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < 5c3cfcf0b4bf43530788b08a8eaf7896ec567484 (git)
Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < 2358046ead696ca5c7c628d6c0e2c6792619a3e5 (git)
Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < 20d0a9062c031068fa39f725a32f182b709b5525 (git)
Affected: 185a383ada2e7794b0e82e040223e741b24d2bf8 , < 18056a48669a040bef491e63b25896561ee14d90 (git)
Create a notification for this product.
    Linux Linux Affected: 4.5
Unaffected: 0 , < 4.5 (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.135 , ≤ 6.1.* (semver)
Unaffected: 6.6.88 , ≤ 6.6.* (semver)
Unaffected: 6.12.24 , ≤ 6.12.* (semver)
Unaffected: 6.13.12 , ≤ 6.13.* (semver)
Unaffected: 6.14.3 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:43:01.027Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/vmd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c250262d6485ca333e9821f85b07eb383ec546b1",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            },
            {
              "lessThan": "c2968c812339593ac6e2bdd5cc3adabe3f05fa53",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            },
            {
              "lessThan": "13e5148f70e81991acbe0bab5b1b50ba699116e7",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            },
            {
              "lessThan": "5c3cfcf0b4bf43530788b08a8eaf7896ec567484",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            },
            {
              "lessThan": "2358046ead696ca5c7c628d6c0e2c6792619a3e5",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            },
            {
              "lessThan": "20d0a9062c031068fa39f725a32f182b709b5525",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            },
            {
              "lessThan": "18056a48669a040bef491e63b25896561ee14d90",
              "status": "affected",
              "version": "185a383ada2e7794b0e82e040223e741b24d2bf8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/vmd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.5"
            },
            {
              "lessThan": "4.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.135",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.3",
              "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": "5.15.181",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.135",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.88",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.24",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.12",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.3",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "4.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type\n\nThe access to the PCI config space via pci_ops::read and pci_ops::write is\na low-level hardware access. The functions can be accessed with disabled\ninterrupts even on PREEMPT_RT. The pci_lock is a raw_spinlock_t for this\npurpose.\n\nA spinlock_t becomes a sleeping lock on PREEMPT_RT, so it cannot be\nacquired with disabled interrupts. The vmd_dev::cfg_lock is accessed in\nthe same context as the pci_lock.\n\nMake vmd_dev::cfg_lock a raw_spinlock_t type so it can be used with\ninterrupts disabled.\n\nThis was reported as:\n\n  BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\n  Call Trace:\n   rt_spin_lock+0x4e/0x130\n   vmd_pci_read+0x8d/0x100 [vmd]\n   pci_user_read_config_byte+0x6f/0xe0\n   pci_read_config+0xfe/0x290\n   sysfs_kf_bin_read+0x68/0x90\n\n[bigeasy: reword commit message]\nTested-off-by: Luis Claudio R. Goncalves \u003clgoncalv@redhat.com\u003e\n[kwilczynski: commit log]\n[bhelgaas: add back report info from\nhttps://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-02T15:28:53.041Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53"
        },
        {
          "url": "https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484"
        },
        {
          "url": "https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525"
        },
        {
          "url": "https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90"
        }
      ],
      "title": "PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-23161",
    "datePublished": "2025-05-01T12:55:46.021Z",
    "dateReserved": "2025-01-11T14:28:41.515Z",
    "dateUpdated": "2026-01-02T15:28:53.041Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.