CVE-2021-47268 usb: typec: tcpm: cancel vdm and state machine hrtimer when unregister tcpm port

🗓️ 21 May 2024 14:19:58Reported by LinuxType

This update resolves a vulnerability in the Linux kernel related to USB Type-C port. Cancelling vdm and state machine hrtimer when unregistering the tcpm port fixes the issue and prevents potential system errors

Reporter	Title	Published	Views	Family All 15
BDU FSTEC	Vulnerability of the tcpm_unregister_port() function in the drivers/usb/typec/tcpm/tcpm.c module – This driver provides support for the controller of USB Type-C ports in Linux kernels. It allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.	23 Jun 202500:00	–	bdu_fstec
CNNVD	Linux kernel 安全漏洞	21 May 202400:00	–	cnnvd
CVE	CVE-2021-47268	21 May 202414:19	–	cve
Debian CVE	CVE-2021-47268	21 May 202414:19	–	debiancve
NVD	CVE-2021-47268	21 May 202415:15	–	nvd
OSV	DEBIAN-CVE-2021-47268	21 May 202415:15	–	osv
OSV	UBUNTU-CVE-2021-47268	21 May 202415:15	–	osv
Positive Technologies	PT-2024-11274 · Linux · Linux Kernel	4 Jun 202100:00	–	ptsecurity
RedhatCVE	CVE-2021-47268	23 May 202413:29	–	redhatcve
SUSE CVE	SUSE CVE-2021-47268	23 May 202403:05	–	susecve

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/typec/tcpm/tcpm.c"
    ],
    "versions": [
      {
        "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
        "lessThan": "18eaf0de50eadeeb395b83310b259b21ad8ed0a6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
        "lessThan": "d0a06696a8a4d99f649240b6f9b8a2e55452ecf5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3ed8e1c2ac9914a2fcb08ec13476b85319536cea",
        "lessThan": "3a13ff7ef4349d70d1d18378d661117dd5af8efe",
        "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/usb/typec/tcpm/tcpm.c"
    ],
    "versions": [
      {
        "version": "5.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.44",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12.11",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/18eaf0de50eadeeb395b83310b259b21ad8ed0a6
git	www.git.kernel.org/stable/c/3a13ff7ef4349d70d1d18378d661117dd5af8efe
git	www.git.kernel.org/stable/c/d0a06696a8a4d99f649240b6f9b8a2e55452ecf5

11 May 2026 13:51Current

6.3Medium risk

Vulners AI Score6.3

EPSS0.00231