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CVE-2026-45880 PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails

🗓️ 27 May 2026 12:16:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 47 Views

PCI/P2PDMA fix: release per-CPU pgmap ref when vm_insert_page() fails to prevent memunmap hang.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/pci/p2pdma.c"
    ],
    "versions": [
      {
        "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
        "lessThan": "baa42b756d183a59572f3890981a3d32b8d05d40",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
        "lessThan": "51b7181cfbedf289ce794b6d97a1c596c309ec38",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
        "lessThan": "e19cce88ec4c4877f4ff2469099b9cf23cc3e93e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
        "lessThan": "a1f4dc72efc3204db95d052058d785cad7ce755f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
        "lessThan": "6220694c52a5a04102b48109e4f24e958b559bd3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/pci/p2pdma.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.14",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.4",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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