CVE-2026-74748

🗓️ 26 Aug 2026 14:36:57Reported by LinuxType

Refcount race in Linux kernel netfilter ipset between list:set GC and swap causing kernel panic.

Reporter	Title	Published	Views	Family All 8
Cvelist	CVE-2026-74748 netfilter: ipset: fix refcount race between list:set GC and swap	26 Aug 202614:36	–	cvelist
Debian CVE	CVE-2026-74748	26 Aug 202614:36	–	debiancve
EUVD	EUVD-2026-66578	27 Aug 202606:31	–	euvd
NVD	CVE-2026-74748	26 Aug 202615:16	–	nvd
OSV	DEBIAN-CVE-2026-74748	26 Aug 202615:16	–	osv
Positive Technologies	PT-2026-82128	26 Aug 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-74748	27 Aug 202606:41	–	redhatcve
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-74748	26 Aug 202600:00	–	nessus

Vulners

CNA

Node

linux linux_kernelRange3.8–5.10.266

linux linux_kernelRange5.11.0–5.15.217

linux linux_kernelRange5.16.0–6.1.184

linux linux_kernelRange6.2.0–6.6.153

linux linux_kernelRange6.7.0–6.12.105

linux linux_kernelRange6.13.0–6.18.46

linux linux_kernelRange6.19.0–7.1.10

linux linux_kernelRange7.2.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/ipset/ip_set_core.c"
    ],
    "versions": [
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "97a01de0c6321b7210d30d0a4d60f10f561097c7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "c21afc7c216a4d257a4f3f300e0791890bc846b9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "b0aab9dd1a348b99d75ff52765719d0cc2050630",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "b891e7a6bb06e0f6560e5932665ac660acd12225",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "20cb13a523f0a05cb2d0a7d72abae687683712e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "cb20da33839f28f590c99f16bafaa6151451c0e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "24ffcb1e1688c55fd2a505f064295cd28eac546d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9076aea76538556224e7d73ab718f8841330818a",
        "lessThan": "0c88868271653537ed443272dd8e7d13634d214b",
        "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/ipset/ip_set_core.c"
    ],
    "versions": [
      {
        "version": "3.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.266",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.217",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.184",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.153",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.105",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.46",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/b891e7a6bb06e0f6560e5932665ac660acd12225
git	www.git.kernel.org/stable/c/97a01de0c6321b7210d30d0a4d60f10f561097c7
git	www.git.kernel.org/stable/c/b0aab9dd1a348b99d75ff52765719d0cc2050630
git	www.git.kernel.org/stable/c/20cb13a523f0a05cb2d0a7d72abae687683712e0
git	www.git.kernel.org/stable/c/0c88868271653537ed443272dd8e7d13634d214b
git	www.git.kernel.org/stable/c/c21afc7c216a4d257a4f3f300e0791890bc846b9
git	www.git.kernel.org/stable/c/cb20da33839f28f590c99f16bafaa6151451c0e8
git	www.git.kernel.org/stable/c/24ffcb1e1688c55fd2a505f064295cd28eac546d

27 Aug 2026 06:17Current

5.4Medium risk

Vulners AI Score5.4

CVSS 3.17.8