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CVE-2026-43083 net: ioam6: fix OOB and missing lock

🗓️ 06 May 2026 07:40:18Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 28 Views

Fix OOB access in net ioam6 trace bit6 RX path; add queue index check and spin_lock_bh around qstats.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/ioam6.c"
    ],
    "versions": [
      {
        "version": "b63c5478e9cb1d1504eb02d9dac827ad24612b32",
        "lessThan": "6d1d9ed9b409e0662241e3d245d574a18f643494",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b63c5478e9cb1d1504eb02d9dac827ad24612b32",
        "lessThan": "95a1334748c95dd15546056280ade0c4b8dd7b78",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b63c5478e9cb1d1504eb02d9dac827ad24612b32",
        "lessThan": "b30b1675aa2bcf0491fd3830b051df4e08a7c8ca",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/ioam6.c"
    ],
    "versions": [
      {
        "version": "5.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.24",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.14",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:17Current
CVSS 3.19.1
EPSS0.00442
28