CVE-2026-53223

🗓️ 25 Jun 2026 08:39:24Reported by LinuxType

Linux kernel fixes timestamp cmsgs for error-queue skbs by pairing PACKET_OUTGOING with sock_rmem_free.

Reporter	Title	Published	Views	Family All 6
ATTACKERKB	CVE-2026-53223	25 Jun 202608:39	–	attackerkb
Cvelist	CVE-2026-53223 net: guard timestamp cmsgs to real error queue skbs	25 Jun 202608:39	–	cvelist
Debian CVE	CVE-2026-53223	25 Jun 202608:39	–	debiancve
EUVD	EUVD-2026-39314	25 Jun 202608:39	–	euvd
NVD	CVE-2026-53223	25 Jun 202609:16	–	nvd
Positive Technologies	PT-2026-52318	25 Jun 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange4.10.14–4.11

linux linux_kernelRange4.11–5.10.259

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_kernelRange6.7.0–6.12.94

linux linux_kernelRange6.13.0–6.18.36

linux linux_kernelRange6.19.0–7.0.13

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": [
      "include/net/sock.h",
      "net/core/skbuff.c",
      "net/socket.c"
    ],
    "versions": [
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "24a0d548d3a765cd4558224e4f8e06e14cba26e3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "71ff5cdd5da61d0438e902aa0fd68c28bc901abe",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "ad9a0374ee6d11048e1f74cd5180bad58b9848b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "b903e9b5629ec8dd6db92174070045bf81ad7060",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "e0665b2a8e90bb08bd205062c75662b502d31797",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "3dde4fb941fa5649ab809f6cd3e20e0c424a4e31",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "eb51a9ad3ceb01bc6c0fb608dbc856e03ee6f24a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8605330aac5a5785630aec8f64378a54891937cc",
        "lessThan": "1ee90b77b727df903033db873c75caac5c27ec98",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cdaf15b43bd31003220cb080bcbbd57787a2fca9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4.10.14",
        "lessThan": "4.11",
        "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/sock.h",
      "net/core/skbuff.c",
      "net/socket.c"
    ],
    "versions": [
      {
        "version": "4.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.11",
        "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": "6.12.94",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.36",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.13",
        "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/eb51a9ad3ceb01bc6c0fb608dbc856e03ee6f24a
git	www.git.kernel.org/stable/c/b903e9b5629ec8dd6db92174070045bf81ad7060
git	www.git.kernel.org/stable/c/24a0d548d3a765cd4558224e4f8e06e14cba26e3
git	www.git.kernel.org/stable/c/3dde4fb941fa5649ab809f6cd3e20e0c424a4e31
git	www.git.kernel.org/stable/c/e0665b2a8e90bb08bd205062c75662b502d31797
git	www.git.kernel.org/stable/c/71ff5cdd5da61d0438e902aa0fd68c28bc901abe
git	www.git.kernel.org/stable/c/ad9a0374ee6d11048e1f74cd5180bad58b9848b4
git	www.git.kernel.org/stable/c/1ee90b77b727df903033db873c75caac5c27ec98

25 Jun 2026 09:16Current

5.8Medium risk

Vulners AI Score5.8