CVE-2026-63831

🗓️ 19 Jul 2026 12:02:24Reported by LinuxType

Fix: call skb_cow_data() before in place crypto in mac802154 llsec to prevent data corruption and crashes.

Reporter	Title	Published	Views	Family All 12
ATTACKERKB	CVE-2026-63831	19 Jul 202612:02	–	attackerkb
Circl	CVE-2026-63831	19 Jul 202615:56	–	circl
Cvelist	CVE-2026-63831 mac802154: llsec: add skb_cow_data() before in-place crypto	19 Jul 202612:02	–	cvelist
EUVD	EUVD-2026-45497	19 Jul 202612:02	–	euvd
NVD	CVE-2026-63831	19 Jul 202612:16	–	nvd
OSV	CVE-2026-63831 mac802154: llsec: add skb_cow_data() before in-place crypto	19 Jul 202612:02	–	osv
OSV	DEBIAN-CVE-2026-63831	19 Jul 202612:16	–	osv
OSV	UBUNTU-CVE-2026-63831	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61147	19 Jul 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-63831	20 Jul 202616:41	–	redhatcve

Vulners

CNA

Node

linux linux_kernelRange3.16–5.10.260

linux linux_kernelRange5.11.0–5.15.211

linux linux_kernelRange5.16.0–6.1.177

linux linux_kernelRange6.2.0–6.6.144

linux linux_kernelRange6.7.0–6.12.95

linux linux_kernelRange6.13.0–6.18.38

linux linux_kernelRange6.19.0–7.1.3

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mac802154/llsec.c"
    ],
    "versions": [
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "3a2b378b3a9ca75d3518d879148d2ad25b5714a9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "7a831bcd0486788283ef35e396d4282ee01bb0d5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "ff976ef7c39199ebff33c18034636595016db9f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "e28e7fd34c449028325322a3f5127b92594b7396",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "993fd674fe85d114e6a8d3963033d4fbbc2170a8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "bd968bdd568beacfdf98ec537a87527e85f1d0cf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "86d531337ea1ba02d9f2bc830d07c683d9bfaade",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03556e4d0dbbbf4af9df76f4a3839c86f6afb015",
        "lessThan": "84a04eb5b210643bd67aab81ff805d32f62aa865",
        "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/mac802154/llsec.c"
    ],
    "versions": [
      {
        "version": "3.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.260",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.211",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.177",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/993fd674fe85d114e6a8d3963033d4fbbc2170a8
git	www.git.kernel.org/stable/c/bd968bdd568beacfdf98ec537a87527e85f1d0cf
git	www.git.kernel.org/stable/c/86d531337ea1ba02d9f2bc830d07c683d9bfaade
git	www.git.kernel.org/stable/c/ff976ef7c39199ebff33c18034636595016db9f0
git	www.git.kernel.org/stable/c/84a04eb5b210643bd67aab81ff805d32f62aa865
git	www.git.kernel.org/stable/c/3a2b378b3a9ca75d3518d879148d2ad25b5714a9
git	www.git.kernel.org/stable/c/e28e7fd34c449028325322a3f5127b92594b7396
git	www.git.kernel.org/stable/c/7a831bcd0486788283ef35e396d4282ee01bb0d5

20 Jul 2026 15:16Current

5.7Medium risk

Vulners AI Score5.7

CVSS 3.18.8