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cve416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2021-47466
HistoryMay 22, 2024 - 7:15 a.m.

CVE-2021-47466

2024-05-2207:15:11
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
29
linux kernel
memory leak
kmem_cache_open
error path
nvd
slub cache

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%

In the Linux kernel, the following vulnerability has been resolved:

mm, slub: fix potential memoryleak in kmem_cache_open()

In error path, the random_seq of slub cache might be leaked. Fix this
by using __kmem_cache_release() to release all the relevant resources.

Affected configurations

Vulners
Node
linuxlinux_kernelRange4.85.4.156
OR
linuxlinux_kernelRange5.5.05.10.76
OR
linuxlinux_kernelRange5.11.05.14.15
OR
linuxlinux_kernelRange5.15.0

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/slub.c"
    ],
    "versions": [
      {
        "version": "210e7a43fa90",
        "lessThan": "4f5d1c29cfab",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "210e7a43fa90",
        "lessThan": "568f906340b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "210e7a43fa90",
        "lessThan": "42b81946e3ac",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "210e7a43fa90",
        "lessThan": "9037c57681d2",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/slub.c"
    ],
    "versions": [
      {
        "version": "4.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.8",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.156",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.76",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.14.15",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%