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CVE-2026-98101 ipv6: mcast: use copy-on-write RCU updates in ip6_mc_source()

🗓️ 25 Sep 2026 10:35:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 31 Views

Linux kernel ipv6 mcast uses non-atomic RCU updates in ip6_mc_source causing torn addresses.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-98101
25 Sep 202610:35
–cve
debiancve
Debian CVE
CVE-2026-98101
25 Sep 202610:35
–debiancve
euvd
EUVD
EUVD-2026-86932
25 Sep 202610:35
–euvd
nvd
NVD
CVE-2026-98101
25 Sep 202611:17
–nvd
osv
OSV
AZL-104636 CVE-2026-98101 affecting package kernel 6.6.157.1-1
25 Sep 202611:17
–osv
osv
OSV
DEBIAN-CVE-2026-98101
25 Sep 202611:17
–osv
osv
OSV
UBUNTU-CVE-2026-98101
25 Sep 202600:00
–osv
ubuntucve
UbuntuCve
CVE-2026-98101
25 Sep 202600:00
–ubuntucve
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-98101
25 Sep 202600:00
–nessus
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/if_inet6.h",
      "net/ipv6/mcast.c"
    ],
    "versions": [
      {
        "version": "882ba1f73c06831f2a21044ebd8864c485ac04f2",
        "lessThan": "2c2091e2ee93049fc513ad1e6c99d8b6c809f467",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "882ba1f73c06831f2a21044ebd8864c485ac04f2",
        "lessThan": "20db91a052332ef5552bd2f651ffb9db911cf67b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "882ba1f73c06831f2a21044ebd8864c485ac04f2",
        "lessThan": "c073d1b070f171d206b19c98d71739a97f15b3f1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "47c75e3923c8d562fea8daf0ccf31546a7bef0ea",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.261",
        "lessThan": "5.11",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/net/if_inet6.h",
      "net/ipv6/mcast.c"
    ],
    "versions": [
      {
        "version": "5.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.53",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.7",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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25 Sep 2026 10:35Current
EPSS0.00166
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