CVE-2026-63971

🗓️ 19 Jul 2026 14:55:57Reported by LinuxType

Fix race between sctp_wait_for_connect and peeloff; add sk check against asoc.base.sk and error if migrated.

Reporter	Title	Published	Views	Family All 7
Cvelist	CVE-2026-63971 sctp: fix race between sctp_wait_for_connect and peeloff	19 Jul 202614:55	–	cvelist
EUVD	EUVD-2026-45744	19 Jul 202614:55	–	euvd
NVD	CVE-2026-63971	19 Jul 202616:17	–	nvd
OSV	CVE-2026-63971 sctp: fix race between sctp_wait_for_connect and peeloff	19 Jul 202614:55	–	osv
OSV	DEBIAN-CVE-2026-63971	19 Jul 202616:17	–	osv
OSV	UBUNTU-CVE-2026-63971	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61288	19 Jul 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange4.16–5.10.259

linux linux_kernelRange5.11.0–5.15.210

linux linux_kernelRange5.16.0–6.1.176

linux linux_kernelRange6.2.0–6.6.143

linux linux_kernelRange6.7.0–6.12.93

linux linux_kernelRange6.13.0–6.18.35

linux linux_kernelRange6.19.0–7.0.12

linux linux_kernelRange7.1.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sctp/socket.c"
    ],
    "versions": [
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "0e0d5bc76fd4267a71334fcc8f1a5fbcf997845d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "bcfeac79af740735ace44008b4a11b8e5add20f5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "8e9b56051d24540cfbf39194618708c4a7633549",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "634a9af8a26a84d8b0d7b3b643204b344b42d9fb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "7d2038d4b80166f7bead8d07eba3b97405816c21",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "68667ee4c7dadf7f63167234e2a1af09b3f7874e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "6140cfa721451fa6e18e134e709703c2bf34d0fb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "668c9beb9020d5834ee9e43c208190a07d2b1928",
        "lessThan": "f14fe6395a8b3d961a61e138ad7b36ba3626dd4e",
        "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/sctp/socket.c"
    ],
    "versions": [
      {
        "version": "4.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/7d2038d4b80166f7bead8d07eba3b97405816c21
git	www.git.kernel.org/stable/c/68667ee4c7dadf7f63167234e2a1af09b3f7874e
git	www.git.kernel.org/stable/c/f14fe6395a8b3d961a61e138ad7b36ba3626dd4e
git	www.git.kernel.org/stable/c/bcfeac79af740735ace44008b4a11b8e5add20f5
git	www.git.kernel.org/stable/c/8e9b56051d24540cfbf39194618708c4a7633549
git	www.git.kernel.org/stable/c/6140cfa721451fa6e18e134e709703c2bf34d0fb
git	www.git.kernel.org/stable/c/634a9af8a26a84d8b0d7b3b643204b344b42d9fb
git	www.git.kernel.org/stable/c/0e0d5bc76fd4267a71334fcc8f1a5fbcf997845d

20 Jul 2026 15:16Current

5.4Medium risk

Vulners AI Score5.4

CVSS 3.17.8