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CVE-2026-98442 net/sched: act_ct: fix helper UAF due to extensions realloc

🗓️ 18 Oct 2026 15:14:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Use-after-free in Linux kernel net/sched: act_ct due to extensions realloc.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-98442
18 Oct 202615:14
–cve
debiancve
Debian CVE
CVE-2026-98442
18 Oct 202615:14
–debiancve
euvd
EUVD
EUVD-2026-103682
18 Oct 202615:14
–euvd
nvd
NVD
CVE-2026-98442
18 Oct 202616:16
–nvd
ptsecurity
Positive Technologies
PT-2026-116661
18 Oct 202600:00
–ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/act_ct.c"
    ],
    "versions": [
      {
        "version": "a21b06e7319129994f339ed47f512bbe57b77f5b",
        "lessThan": "1679bbf5fbeac52a310b1a58b2b301bbf388bdbf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a21b06e7319129994f339ed47f512bbe57b77f5b",
        "lessThan": "812c16a255e7773a544e88b39ae6daed25544d30",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a21b06e7319129994f339ed47f512bbe57b77f5b",
        "lessThan": "8988f4d11f3fba0ab38122178836c683ad516a05",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a21b06e7319129994f339ed47f512bbe57b77f5b",
        "lessThan": "dad19b59da050cb60d3f7023dac2a042a84bf0bd",
        "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/sched/act_ct.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.112",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.55",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.9",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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