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CVE-2026-89561 ipv6: rpl: fix NULL dereference of idev in ipv6_rpl_srh_rcv()

🗓️ 11 Sep 2026 19:44:32Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 13 Views

NULL pointer dereference in Linux kernel ipv6_rpl_srh_rcv() via idev when MTU drops below minimum.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-89561
11 Sep 202619:44
cve
debiancve
Debian CVE
CVE-2026-89561
11 Sep 202619:44
debiancve
euvd
EUVD
EUVD-2026-76472
11 Sep 202619:44
euvd
nvd
NVD
CVE-2026-89561
11 Sep 202620:19
nvd
osv
OSV
DEBIAN-CVE-2026-89561
11 Sep 202620:19
osv
ptsecurity
Positive Technologies
PT-2026-90277
11 Sep 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-89561
11 Sep 202623:48
redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv6/exthdrs.c"
    ],
    "versions": [
      {
        "version": "8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3",
        "lessThan": "63f50e9f90d0287ad66a0955ebfc2d3a9c044a1c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3",
        "lessThan": "eab3a917cdcb182542a3aac6a0d2d30659ca9821",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8610c7c6e3bd647ff98d21c8bc0580e77bc2f8b3",
        "lessThan": "f826df95332c07380206dbd54178b6eefb311aba",
        "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/ipv6/exthdrs.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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