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CVE-2026-89722 PCI/sysfs: Fix out-of-bounds read in pci_write_legacy_io()

🗓️ 11 Sep 2026 19:46:34Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Out-of-bounds read in Linux kernel pci_write_legacy_io() when writing to legacy_io sysfs file.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-89722
11 Sep 202619:46
cve
euvd
EUVD
EUVD-2026-76634
11 Sep 202619:46
euvd
nvd
NVD
CVE-2026-89722
11 Sep 202620:20
nvd
ptsecurity
Positive Technologies
PT-2026-90438
11 Sep 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-89722
11 Sep 202621:30
redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/kernel/pci-common.c",
      "drivers/pci/pci-sysfs.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "e892f05f1f790d5721cd8e3c561ed76da7e08bae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "7a99e9c7011905734cc2739038f2a224b6be0d1f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "dc76258d0132df1d831a5a29758bd448ca9c566e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0",
        "lessThan": "6.18.50",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "0",
        "lessThan": "7.2.4",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/kernel/pci-common.c",
      "drivers/pci/pci-sysfs.c"
    ],
    "versions": [
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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