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CVE-2026-74739

🗓️ 26 Aug 2026 14:36:51Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 28 Views

Slab-out-of-bounds read in Linux kernel cls_u32 when u32_bind_class() casts hash node as knode.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-74739 net/sched: cls_u32: skip hash tables in u32_bind_class()
26 Aug 202614:36
cvelist
debiancve
Debian CVE
CVE-2026-74739
26 Aug 202614:36
debiancve
euvd
EUVD
EUVD-2026-66569
27 Aug 202606:31
euvd
nvd
NVD
CVE-2026-74739
26 Aug 202615:16
nvd
osv
OSV
AZL-97740 CVE-2026-74739 affecting package kernel 6.6.150.1-1
26 Aug 202615:16
osv
osv
OSV
BELL-CVE-2026-74739
29 Aug 202606:03
osv
osv
OSV
DEBIAN-CVE-2026-74739
26 Aug 202615:16
osv
osv
OSV
UBUNTU-CVE-2026-74739
26 Aug 202615:16
osv
ptsecurity
Positive Technologies
PT-2026-82119
26 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-74739
27 Aug 202606:33
redhatcve
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange4.146.1.184
linuxlinux_kernelRange6.2.06.6.153
linuxlinux_kernelRange6.7.06.12.105
linuxlinux_kernelRange6.13.06.18.46
linuxlinux_kernelRange6.19.07.1.10
linuxlinux_kernelRange7.2.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/cls_u32.c"
    ],
    "versions": [
      {
        "version": "07d79fc7d94e3f884b8b1c95aa615b202bb5e4c1",
        "lessThan": "ec5f3005586a785689fd568361b0c5925cb1548b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "07d79fc7d94e3f884b8b1c95aa615b202bb5e4c1",
        "lessThan": "19d114b93c94bdef70496f26685c2a6b242f41b3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "07d79fc7d94e3f884b8b1c95aa615b202bb5e4c1",
        "lessThan": "594a064d603202b9ee21e07679d854e5c1750cc4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "07d79fc7d94e3f884b8b1c95aa615b202bb5e4c1",
        "lessThan": "31f26a95eeee926946809ac456c61a3217936a62",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "07d79fc7d94e3f884b8b1c95aa615b202bb5e4c1",
        "lessThan": "e71f8e9ed6f311410b14741f6012afe01869c0fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "07d79fc7d94e3f884b8b1c95aa615b202bb5e4c1",
        "lessThan": "6d3724e616faf952c3adcf8414fc21a828ef3709",
        "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/cls_u32.c"
    ],
    "versions": [
      {
        "version": "4.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.14",
        "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"
      }
    ]
  }
]

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27 Aug 2026 06:17Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.17.8
EPSS0.00138
28