CVE-2021-46904

🗓️ 25 Feb 2024 14:03:40Reported by LinuxType

In Linux kernel: net: hso: fix null-ptr-deref during tty device unregistration. Fix obtain_minor() function to immediately assign minor number and rename it

Reporter	Title	Published	Views	Family All 175
ATTACKERKB	CVE-2021-46904	26 Feb 202416:27	–	attackerkb
Tenable Nessus	Amazon Linux 2 : kernel (ALAS-2021-1636)	24 May 202100:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-001)	2 May 202200:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-003)	2 May 202200:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2024-1570)	9 May 202400:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2024-1592)	9 May 202400:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2024-1937)	16 Jul 202400:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2024-1964)	16 Jul 202400:00	–	nessus
Tenable Nessus	EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2024-1984)	18 Jul 202400:00	–	nessus
Tenable Nessus	EulerOS Virtualization 2.10.1 : kernel (EulerOS-SA-2024-2002)	18 Jul 202400:00	–	nessus

NVD

Vulners

CNA

Node

linux linux_kernelRange2.6.27–4.4.268

linux linux_kernelRange4.5.0–4.9.268

linux linux_kernelRange4.10.0–4.14.232

linux linux_kernelRange4.15.0–4.19.187

linux linux_kernelRange4.20.0–5.4.112

linux linux_kernelRange5.5.0–5.10.30

linux linux_kernelRange5.11.0–5.11.14

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/usb/hso.c"
    ],
    "versions": [
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "a462067d7c8e6953a733bf5ade8db947b1bb5449",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "145c89c441d27696961752bf51b323f347601bee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "caf5ac93b3b5d5fac032fc11fbea680e115421b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "92028d7a31e55d53e41cff679156b9432cffcb36",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "4a2933c88399c0ebc738db39bbce3ae89786d723",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "388d05f70f1ee0cac4a2068fd295072f1a44152a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "72dc1c096c7051a48ab1dbb12f71976656b55eb5",
        "lessThan": "8a12f8836145ffe37e9c8733dce18c22fb668b66",
        "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/usb/hso.c"
    ],
    "versions": [
      {
        "version": "2.6.27",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.27",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.4.268",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.268",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.232",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.187",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.112",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.30",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.11.14",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/a462067d7c8e6953a733bf5ade8db947b1bb5449
git	www.git.kernel.org/stable/c/4a2933c88399c0ebc738db39bbce3ae89786d723
git	www.git.kernel.org/stable/c/388d05f70f1ee0cac4a2068fd295072f1a44152a
git	www.git.kernel.org/stable/c/dc195928d7e4ec7b5cfc6cd10dc4c8d87a7c72ac
git	www.git.kernel.org/stable/c/145c89c441d27696961752bf51b323f347601bee
git	www.git.kernel.org/stable/c/caf5ac93b3b5d5fac032fc11fbea680e115421b4
git	www.git.kernel.org/stable/c/92028d7a31e55d53e41cff679156b9432cffcb36
git	www.git.kernel.org/stable/c/8a12f8836145ffe37e9c8733dce18c22fb668b66

11 May 2026 13:44Current

6.2Medium risk

Vulners AI Score6.2

CVSS 3.15.5

EPSS0.00012

SSVC

CWE-476