CVE-2026-43103 net: lapbether: handle NETDEV_PRE_TYPE_CHANGE

🗓️ 06 May 2026 07:40:32Reported by LinuxType

Fixed NETDEV_PRE_TYPE_CHANGE handling in lapbether to enforce ARPHRD_ETHER type and NOTIFY_BAD.

Reporter	Title	Published	Views	Family All 21
ATTACKERKB	CVE-2026-43103	6 May 202607:40	–	attackerkb
Chainguard	CVE-2026-43103 vulnerabilities	16 May 202601:18	–	cgr
CNNVD	Linux kernel 安全漏洞	6 May 202600:00	–	cnnvd
CVE	CVE-2026-43103	6 May 202607:40	–	cve
Debian CVE	CVE-2026-43103	6 May 202607:40	–	debiancve
EUVD	EUVD-2026-27616	6 May 202612:30	–	euvd
NVD	CVE-2026-43103	6 May 202610:16	–	nvd
OSV	BELL-CVE-2026-43103	9 May 202606:10	–	osv
OSV	CGA-4QR5-XJPG-V4JW	15 May 202620:31	–	osv
OSV	DEBIAN-CVE-2026-43103	6 May 202610:16	–	osv

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wan/lapbether.c"
    ],
    "versions": [
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "698642a01d53107ce9b3fc08bd801284af478a2b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "ffc5ed59f6dc87c51e8775f002619310225742e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "a10570973619cba9dfa6d723177251b846fae587",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "363a38044b8cd5b496d241651a1fb666e7c5fe3e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "328bb2cff5c2ed973f595ded769e15f4b7a117be",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "63851f60781aa89258c8f0952cd13940aab0888e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "b117056768ab7deb434e7d72065e48d2083a0c2a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "872254dd6b1f80cb95ee9e2e22980888533fc293",
        "lessThan": "b120e4432f9f56c7103133d6a11245e617695adb",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wan/lapbether.c"
    ],
    "versions": [
      {
        "version": "2.6.24",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.24",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.136",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.83",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.24",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.14",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e
git	www.git.kernel.org/stable/c/a10570973619cba9dfa6d723177251b846fae587
git	www.git.kernel.org/stable/c/698642a01d53107ce9b3fc08bd801284af478a2b
git	www.git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a
git	www.git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be
git	www.git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb
git	www.git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e
git	www.git.kernel.org/stable/c/ffc5ed59f6dc87c51e8775f002619310225742e8

01 Jun 2026 16:14Current

EPSS0.00123