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CVE-2026-80578 fbdev: core: Fix pointer desynchronization in fb_io_read()

🗓️ 26 Aug 2026 14:37:36Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Out-of-bounds read in Linux kernel fbdev fb_io_read() due to pointer desync on partial copy.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-80578
26 Aug 202614:37
cve
euvd
EUVD
EUVD-2026-66493
26 Aug 202614:37
euvd
nvd
NVD
CVE-2026-80578
26 Aug 202615:17
nvd
ptsecurity
Positive Technologies
PT-2026-82194
26 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/video/fbdev/core/fb_io_fops.c"
    ],
    "versions": [
      {
        "version": "6121cd9ef911432b14c2a17aefaf8cd2f3cfcdff",
        "lessThan": "42bc07b4e5a3c8a02a433388f562a8f46d093e11",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6121cd9ef911432b14c2a17aefaf8cd2f3cfcdff",
        "lessThan": "42a6d8126c194133eafab2b0fd5c8668ebfcba5b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6121cd9ef911432b14c2a17aefaf8cd2f3cfcdff",
        "lessThan": "7ff87a01ae3a8cd0208f7499386998223a8b5dba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6121cd9ef911432b14c2a17aefaf8cd2f3cfcdff",
        "lessThan": "7110b7b794a2aac2c5cf8eb06ebf2af724c74d50",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6121cd9ef911432b14c2a17aefaf8cd2f3cfcdff",
        "lessThan": "81cc73be40c6f028f1ee3f438ace46afe666dbae",
        "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/video/fbdev/core/fb_io_fops.c"
    ],
    "versions": [
      {
        "version": "6.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.153",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.105",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.46",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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