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CVE-2026-63918 l2tp: use refcount_inc_not_zero in l2tp_session_get_by_ifname

🗓️ 19 Jul 2026 14:55:21Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 35 Views

Fix l2tp ifname session getter to use refcount_inc_not_zero, avoiding use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-63918
19 Jul 202614:55
cve
debiancve
Debian CVE
CVE-2026-63918
19 Jul 202614:55
debiancve
euvd
EUVD
EUVD-2026-45691
19 Jul 202614:55
euvd
nvd
NVD
CVE-2026-63918
19 Jul 202616:17
nvd
osv
OSV
BELL-CVE-2026-63918
22 Jul 202606:04
osv
osv
OSV
DEBIAN-CVE-2026-63918
19 Jul 202616:17
osv
osv
OSV
UBUNTU-CVE-2026-63918
20 Jul 202600:00
osv
osv
OSV
USN-8593-1 linux-ibm, linux-oracle vulnerabilities
23 Jul 202607:35
osv
osv
OSV
USN-8603-1 linux-azure, linux-azure-fde vulnerabilities
24 Jul 202609:51
osv
osv
OSV
USN-8618-1 linux-aws, linux-raspi vulnerabilities
28 Jul 202607:16
osv
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/l2tp/l2tp_core.c"
    ],
    "versions": [
      {
        "version": "abe7a1a7d0b69e63b1bca5f9531023a52336784f",
        "lessThan": "ee80455feffb9cb62b5b58715cabeff495e666b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "abe7a1a7d0b69e63b1bca5f9531023a52336784f",
        "lessThan": "947013fd7c8c35dd5856557b215840098a3f67f8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "abe7a1a7d0b69e63b1bca5f9531023a52336784f",
        "lessThan": "782d60a6596aee9b29c2eecfa70033899278bf65",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "abe7a1a7d0b69e63b1bca5f9531023a52336784f",
        "lessThan": "05f95729ca844704d15e49ce14868af4b403b32b",
        "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/l2tp/l2tp_core.c"
    ],
    "versions": [
      {
        "version": "6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:37Current
CVSS 3.17.8
EPSS0.00159
35