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CVE-2026-68277 drm/dp/mst: fix OOB reads on 2-byte fields in sideband reply parsers

🗓️ 10 Aug 2026 12:01:53Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Fix OOB reads in reply parsers by adding a pre check for two-byte reads in three parse functions.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-68277
10 Aug 202612:01
cve
debiancve
Debian CVE
CVE-2026-68277
10 Aug 202612:01
debiancve
euvd
EUVD
EUVD-2026-55378
10 Aug 202612:01
euvd
nvd
NVD
CVE-2026-68277
10 Aug 202613:20
nvd
osv
OSV
DEBIAN-CVE-2026-68277
10 Aug 202615:47
osv
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/gpu/drm/display/drm_dp_mst_topology.c"
    ],
    "versions": [
      {
        "version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd",
        "lessThan": "bdf0508b1e6785d4a8982c637e97e68d60b47d7b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd",
        "lessThan": "0bcd7675c69a2462a8531fcd9e4d096e9c7ec5df",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd",
        "lessThan": "d5c70523cafa26ad2c7a37b612849abe2683baa8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd",
        "lessThan": "68a624416d1dd481b3e5b7ea0e8a070a9b8a2c73",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ad7f8a1f9ced7f049f9b66d588723f243a7034cd",
        "lessThan": "6b89ba3dba2f583626fb693e47e951ffb8bf591f",
        "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/gpu/drm/display/drm_dp_mst_topology.c"
    ],
    "versions": [
      {
        "version": "3.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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