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CVE-2026-23139 netfilter: nf_conncount: update last_gc only when GC has been performed

🗓️ 14 Feb 2026 15:22:24Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 35 Views

Linux kernel nf_conncount updates last_gc only when garbage collection is performed to prevent bypass.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-23139
14 Feb 202615:22
attackerkb
astralinux
AstraLinux
Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1
10 Aug 202607:11
astralinux
bdu_fstec
BDU FSTEC
The vulnerability of the netfilter component in the Linux operating system’s kernel, which leads to uncontrolled resource consumption, allows a hacker to cause a service failure.
29 May 202600:00
bdu_fstec
circl
Circl
CVE-2026-23139
3 Apr 202615:22
circl
cnnvd
CNNVD
Linux kernel 安全漏洞
14 Feb 202600:00
cnnvd
cve
CVE
CVE-2026-23139
14 Feb 202615:22
cve
debiancve
Debian CVE
CVE-2026-23139
14 Feb 202615:22
debiancve
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
10 Mar 202600:00
oraclelinux
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
10 Mar 202600:00
oraclelinux
euvd
EUVD
EUVD-2026-5898
14 Feb 202615:22
euvd
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nf_conncount.c"
    ],
    "versions": [
      {
        "version": "f106694733c66a48740c25bc4e212e9b2ea364ce",
        "lessThan": "2c7c71113ed6d3e2f3aca4c088f22283016ff34f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "be69850b461e7b491d87a22e33ab76fdd04b725e",
        "lessThan": "c4cde57c8affdcca5bcff53a1047e15d268bdca1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d265929930e2ffafc744c0ae05fb70acd53be1ee",
        "lessThan": "9f45588993d7f115280fc726119ca86fba32a811",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d265929930e2ffafc744c0ae05fb70acd53be1ee",
        "lessThan": "3cd717359e56f82f06cbf8279b47a7d79880c6f3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d265929930e2ffafc744c0ae05fb70acd53be1ee",
        "lessThan": "26a82dce2beee39c43c109d9647e16f49cb02a35",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d265929930e2ffafc744c0ae05fb70acd53be1ee",
        "lessThan": "8bdafdf4900040a81422056cabe5e00a37bd101a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d265929930e2ffafc744c0ae05fb70acd53be1ee",
        "lessThan": "7811ba452402d58628e68faedf38745b3d485e3c",
        "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/netfilter/nf_conncount.c"
    ],
    "versions": [
      {
        "version": "5.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.161",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.121",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.66",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.6",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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