CVE-2021-47260

2024-05-2115:15:14

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

nfs

linux kernel

vulnerability

null dereference

6.8 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

NFS: Fix a potential NULL dereference in nfs_get_client()

None of the callers are expecting NULL returns from nfs_get_client() so
this code will lead to an Oops. It’s better to return an error
pointer. I expect that this is dead code so hopefully no one is
affected.

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.17–4.4.273

linuxlinux_kernelRange4.5.0–4.9.273

linuxlinux_kernelRange4.10.0–4.14.237

linuxlinux_kernelRange4.15.0–4.19.195

linuxlinux_kernelRange4.20.0–5.4.126

linuxlinux_kernelRange5.5.0–5.10.44

linuxlinux_kernelRange5.11.0–5.12.11

linuxlinux_kernelRange5.13.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/nfs/client.c"
    ],
    "versions": [
      {
        "version": "31434f496abb",
        "lessThan": "fab8bfdfb4aa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "a979e6010009",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "634f17ff1d59",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "4b380a7d84ef",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "0057ecef9f32",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "279ad78a00f8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "58ddf61f10b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "31434f496abb",
        "lessThan": "09226e8303be",
        "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/nfs/client.c"
    ],
    "versions": [
      {
        "version": "3.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.17",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.273",
        "lessThanOrEqual": "4.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.273",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.237",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.195",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.126",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.44",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.11",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]