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CVE-2021-47454

🗓️ 22 May 2024 06:19:44Reported by LinuxType 
cve
 cve🔗 web.nvd.nist.gov👁 137 Views

In the Linux kernel, a vulnerability allows for scheduling while atomic when a CPU is offlined then onlined again

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2021-47454
22 May 202407:15
–attackerkb
AstraLinux		 Astra Linux - уязвимость в linux-5.10
20 May 202605:53
–astralinux
CNNVD		Linux kernel 安全漏洞
22 May 202400:00
–cnnvd
Cvelist		CVE-2021-47454 powerpc/smp: do not decrement idle task preempt count in CPU offline
22 May 202406:19
–cvelist
Debian CVE		CVE-2021-47454
22 May 202406:19
–debiancve
Oracle linux		kernel security update
14 Nov 202400:00
–oraclelinux
Tenable Nessus		MiracleLinux 9 : kernel-5.14.0-503.11.1.el9_5 (AXSA:2025-9528:03)
20 Jan 202600:00
–nessus
Tenable Nessus		Oracle Linux 9 : kernel (ELSA-2024-9315)
19 Nov 202400:00
–nessus
Tenable Nessus		Photon OS 4.0: Linux PHSA-2021-4.0-0065
22 Jul 202100:00
–nessus
Tenable Nessus		RHEL 9 : kernel (RHSA-2024:9315)
12 Nov 202400:00
–nessus
Rows per page
NVD
Vulners
CNA
Node
linuxlinux_kernelRange5.10.50–5.10.76
OR
linuxlinux_kernelRange5.12.17–5.13
OR
linuxlinux_kernelRange5.13.2–5.14.15
OR
linuxlinux_kernelMatch5.15rc1
OR
linuxlinux_kernelMatch5.15rc2
OR
linuxlinux_kernelMatch5.15rc3
OR
linuxlinux_kernelMatch5.15rc4
OR
linuxlinux_kernelMatch5.15rc5
OR
linuxlinux_kernelMatch5.15rc6
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/kernel/smp.c"
    ],
    "versions": [
      {
        "version": "bdf4d33e8342b90386156204e1da0cdfdb4bf146",
        "lessThan": "53770a411559cf7bc0906d1df319cc533d2f4f58",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c669ef6979c370f98d4b876e54f19613c81e075",
        "lessThan": "3ea0b497a7a2fff6a4b7090310c9f52c91975934",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c669ef6979c370f98d4b876e54f19613c81e075",
        "lessThan": "787252a10d9422f3058df9a4821f389e5326c440",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2b6148ef2bd6d8ddc76e7873114f7769b6aa25f0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "20a015e948b825afb47855de2efce7cae7c2608f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.50",
        "lessThan": "5.10.76",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.12.17",
        "lessThan": "5.13",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.13.2",
        "lessThan": "5.14",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/powerpc/kernel/smp.c"
    ],
    "versions": [
      {
        "version": "5.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.76",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.14.15",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 15:20Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.15.5
EPSS0.00018
SSVC
linux kernelvulnerabilityschedulingcpu offlinepowerpcpreemptionidle task
137