CVE-2021-47336

🗓️ 21 May 2024 14:35:45Reported by LinuxType

Linux kernel vulnerability CVE-2021-47336 has been resolved in smackfs by restricting bytes count in smk_set_cipso(

Reporter	Title	Published	Views	Family All 21
AstraLinux	Astra Linux – Vulnerability in Linux, Linux 5.10	19 Jun 202611:10	–	astralinux
BDU FSTEC	The vulnerability of the smk_set_cipso() function in the security/smack/smackfs.c module of the Linux operating system allows a hacker to induce a service failure.	24 Nov 202500:00	–	bdu_fstec
Circl	CVE-2021-47336	4 May 202507:18	–	circl
CNNVD	Linux kernel 安全漏洞	21 May 202400:00	–	cnnvd
Cvelist	CVE-2021-47336 smackfs: restrict bytes count in smk_set_cipso()	21 May 202414:35	–	cvelist
Debian CVE	CVE-2021-47336	21 May 202414:35	–	debiancve
NVD	CVE-2021-47336	21 May 202415:15	–	nvd
OSV	CLSA-2025-1754037187 Fix of 7 CVEs	1 Aug 202508:33	–	osv
OSV	DEBIAN-CVE-2021-47336	21 May 202415:15	–	osv
OSV	OESA-2026-2673 kernel security update	12 Jun 202612:27	–	osv

NVD

Vulners

CNA

Node

linux linux_kernelRange<4.9.276

linux linux_kernelRange4.10–4.14.240

linux linux_kernelRange4.15–4.19.198

linux linux_kernelRange4.20–5.4.133

linux linux_kernelRange5.5–5.10.51

linux linux_kernelRange5.11–5.12.18

linux linux_kernelRange5.13–5.13.3

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "security/smack/smackfs.c"
    ],
    "versions": [
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "5f9880403e6b71d56924748ba331daf836243fca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "cbd87ba6a13891acf6180783f8234a8b7a3e3d4d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "135122f174c357b7a3e58f40fa5792156c5e93e6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "3780348c1a0e14ffefcaf1fc521f815bcaac94b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "8f5c773a2871cf446e3f36b2834fb25bbb28512b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "258fd821f69378453c071b9dd767b298810fc766",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f7112e6c9abf1c70f001dcf097c1d6e218a93f5c",
        "lessThan": "49ec114a6e62d8d320037ce71c1aaf9650b3cafd",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "security/smack/smackfs.c"
    ],
    "versions": [
      {
        "version": "3.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.276",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.240",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.198",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.133",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.51",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12.18",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.13.3",
        "lessThanOrEqual": "5.13.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.14",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766
git	www.git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca
git	www.git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6
git	www.git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0
git	www.git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d
git	www.git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2
git	www.git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512b
git	www.git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafd

17 Jun 2026 04:17Current

6.7Medium risk

Vulners AI Score6.7

CVSS 3.17.8

EPSS0.00246

SSVC