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CVE-2026-80689 tracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions

🗓️ 28 Aug 2026 06:52:53Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 52 Views

NULL pointer dereference in Linux kernel tracing/mmiotrace logging functions when array is NULL.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/trace_mmiotrace.c"
    ],
    "versions": [
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "dc1b1a057b3bb901f83433700e604fe0ae67c5f2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "6aee2d478545c089dd5d055d3c9f0c7ea034fb80",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "4e4ab09db7899d7f2d2293a18adf0fa200a27e73",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "2df964d141270c40f07547b0c2e0a51e2573d46d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "876014b4eeb927146430e7591cf959a7ceb8d64a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "a20a0010eb6485f60cd64e15ebc85a4bd388642e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "60234845142fddb27db89ebc00a65178421fb3a4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f984b51e0779a6dd30feedc41404013ca54e5d05",
        "lessThan": "12b80cdbc54cf615b4717a4e8180063408091ea2",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/trace_mmiotrace.c"
    ],
    "versions": [
      {
        "version": "2.6.27",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.27",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.270",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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