{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-40032",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40032",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-28T11:48:14.876Z",
    "updatedAt": "2026-05-11T21:41:10.040Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release\n\nThe fields dma_chan_tx and dma_chan_rx of the struct pci_epf_test can be\nNULL even after EPF initialization. Then it is prudent to check that\nthey have non-NULL values before releasing the channels. Add the checks\nin pci_epf_test_clean_dma_chan().\n\nWithout the checks, NULL pointer dereferences happen and they can lead\nto a kernel panic in some cases:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050\n  Call trace:\n   dma_release_channel+0x2c/0x120 (P)\n   pci_epf_test_epc_deinit+0x94/0xc0 [pci_epf_test]\n   pci_epc_deinit_notify+0x74/0xc0\n   tegra_pcie_ep_pex_rst_irq+0x250/0x5d8\n   irq_thread_fn+0x34/0xb8\n   irq_thread+0x18c/0x2e8\n   kthread+0x14c/0x210\n   ret_from_fork+0x10/0x20\n\n[mani: trimmed the stack trace]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5ebf3fc59bd20d17df3ba26159787d13cf20d362",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6411f840a9b5c47c00ca8e004733de232553870d"
            },
            {
              "version": "5ebf3fc59bd20d17df3ba26159787d13cf20d362",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0c5ce6b6ccc22d486cc7239ed908cb0ae5363a7b"
            },
            {
              "version": "5ebf3fc59bd20d17df3ba26159787d13cf20d362",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb54ffd60064c4e5139a3eb216e877b1acae1c8b"
            },
            {
              "version": "5ebf3fc59bd20d17df3ba26159787d13cf20d362",
              "status": "affected",
              "versionType": "git",
              "lessThan": "57f7fb0d1ac28540c0f6405c829bb9c3b89d8dba"
            },
            {
              "version": "5ebf3fc59bd20d17df3ba26159787d13cf20d362",
              "status": "affected",
              "versionType": "git",
              "lessThan": "85afa9ea122dd9d4a2ead104a951d318975dcd25"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.7"
            },
            {
              "version": "6.1.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}