CVE-2021-47169

🗓️ 25 Mar 2024 09:16:21Reported by LinuxType

This resolves a vulnerability in Linux kernel's 'rp2' driver by switching from 'request_firmware_nowait' to 'request_firmware' to prevent NULL pointer dereference or other bugs caused by accessing ports during interrupt handling

Reporter	Title	Published	Views	Family All 143
AstraLinux	Astra Linux – Vulnerability in Linux	14 Sep 202612:41	–	astralinux
BDU FSTEC	rp2remove_ports() Heap Buffer Overflow DoS	1 Apr 202500:00	–	bdu_fstec
CNNVD	Linux kernel 安全漏洞	25 Mar 202400:00	–	cnnvd
Cvelist	CVE-2021-47169 serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'	25 Mar 202409:16	–	cvelist
Debian CVE	CVE-2021-47169	25 Mar 202409:16	–	debiancve
NVD	CVE-2021-47169	25 Mar 202410:15	–	nvd
OpenVAS	openSUSE: Security Advisory for the Linux Kernel (SUSE-SU-2024:1489-1)	20 Aug 202400:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2024:1454-1)	13 Feb 202500:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2024:1489-1)	13 Feb 202500:00	–	openvas
OpenVAS	SUSE: Security Advisory (SUSE-SU-2024:1643-1)	15 May 202400:00	–	openvas

NVD

Vulners

CNA

Node

linux linux_kernelRange<4.4.271

linux linux_kernelRange4.5–4.9.271

linux linux_kernelRange4.10–4.14.235

linux linux_kernelRange4.15–4.19.193

linux linux_kernelRange4.20–5.4.124

linux linux_kernelRange5.5–5.10.42

linux linux_kernelRange5.11–5.12.9

linux linux_kernelMatch5.13rc1

linux linux_kernelMatch5.13rc2

linux linux_kernelMatch5.13rc3

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/serial/rp2.c"
    ],
    "versions": [
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "1e04d5d5fe5e76af68f834e1941fcbfa439653be",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "c697244ce940ec07e2d745ccb63ca97fc0266fbc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "1cc57cb32c84e059bd158494f746b665fc14d1b1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "35265552c7fe9553c75e324c80f45e28ff14eb6e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "915452f40e2f495e187276c4407a4f567ec2307e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "6a931ceb0b9401fe18d0c500e08164bf9cc7be4b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "9b07b6973f7359e2dd6a9fe6db0c142634c823b7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7d9f49afa451d8565d00a5cea39acf9bb26feb50",
        "lessThan": "016002848c82eeb5d460489ce392d91fe18c475c",
        "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/tty/serial/rp2.c"
    ],
    "versions": [
      {
        "version": "3.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.4.271",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.271",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.235",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.193",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.124",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.42",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12.9",
        "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/c697244ce940ec07e2d745ccb63ca97fc0266fbc
git	www.git.kernel.org/stable/c/1cc57cb32c84e059bd158494f746b665fc14d1b1
git	www.git.kernel.org/stable/c/1e04d5d5fe5e76af68f834e1941fcbfa439653be
git	www.git.kernel.org/stable/c/9b07b6973f7359e2dd6a9fe6db0c142634c823b7
git	www.git.kernel.org/stable/c/35265552c7fe9553c75e324c80f45e28ff14eb6e
git	www.git.kernel.org/stable/c/016002848c82eeb5d460489ce392d91fe18c475c
git	www.git.kernel.org/stable/c/6a931ceb0b9401fe18d0c500e08164bf9cc7be4b
git	www.git.kernel.org/stable/c/915452f40e2f495e187276c4407a4f567ec2307e

17 Jun 2026 04:16Current

6.3Medium risk

Vulners AI Score6.3

CVSS 3.15.5

EPSS0.00226

SSVC

CWE-476