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CVE-2021-47292

🗓️ 21 May 2024 14:35:16Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 104 Views

The Linux kernel has resolved a memory leak vulnerability in io_uring's io_init_wq_offload() function. This vulnerability can lead to a memory leak when calling io_uring_enter() in parallel. To address this, uring_lock has been added to protect 'hash_map'.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Linux io_uring Heap Buffer Overflow DoS
28 Jan 202500:00
–bdu_fstec
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
21 May 202400:00
–cnnvd
cvelist
Cvelist
CVE-2021-47292 io_uring: fix memleak in io_init_wq_offload()
21 May 202414:35
–cvelist
debiancve
Debian CVE
CVE-2021-47292
21 May 202414:35
–debiancve
nvd
NVD
CVE-2021-47292
21 May 202415:15
–nvd
osv_cve
osv_cve
CVE-2021-47292
21 May 202415:15
–osv_cve
osv_oesa
osv_oesa
OESA-2024-2080 kernel security update
30 Aug 202411:07
–osv_oesa
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2021-47292
21 May 202415:15
–osv_ubuntu
ptsecurity
Positive Technologies
PT-2021-8251 · Linux · Linux Kernel
20 Jul 202100:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2021-47292: Missing Release of Memory after Effective Lifetime
21 May 202400:00
–rapid7
Rows per page
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.12–5.13.6
linuxlinux_kernelMatch5.14rc1
linuxlinux_kernelMatch5.14rc2
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/io_uring.c"
    ],
    "versions": [
      {
        "version": "e941894eae31b52f0fd9bdb3ce20620afa152f45",
        "lessThan": "502731a03f27cba1513fbbff77e508185ffce5bb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e941894eae31b52f0fd9bdb3ce20620afa152f45",
        "lessThan": "362a9e65289284f36403058eea2462d0330c1f24",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/io_uring.c"
    ],
    "versions": [
      {
        "version": "5.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.13.6",
        "lessThanOrEqual": "5.13.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.14",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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17 Jun 2026 04:17Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.15.5
EPSS0.00193
SSVC
104