CVE-2021-47184

2024-04-1019:15:47

Linux

web.nvd.nist.gov

linux kernel

i40e driver

vulnerability

null pointer

sync vsi filters

kernel oops

AI Score

6.1

Confidence

Low

EPSS

Percentile

10.3%

JSON

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

i40e: Fix NULL ptr dereference on VSI filter sync

Remove the reason of null pointer dereference in sync VSI filters.
Added new I40E_VSI_RELEASING flag to signalize deleting and releasing
of VSI resources to sync this thread with sync filters subtask.
Without this patch it is possible to start update the VSI filter list
after VSI is removed, that’s causing a kernel oops.

Affected configurations

Vulners

Node

linuxlinux_kernelRange3.12–4.14.256

linuxlinux_kernelRange4.15.0–4.19.218

linuxlinux_kernelRange4.20.0–5.4.162

linuxlinux_kernelRange5.5.0–5.10.82

linuxlinux_kernelRange5.11.0–5.15.5

linuxlinux_kernelRange5.16.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/intel/i40e/i40e.h",
      "drivers/net/ethernet/intel/i40e/i40e_main.c"
    ],
    "versions": [
      {
        "version": "41c445ff0f48",
        "lessThan": "78f2a9e831f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "41c445ff0f48",
        "lessThan": "87c421ab4a43",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "41c445ff0f48",
        "lessThan": "c30162da9132",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "41c445ff0f48",
        "lessThan": "f866513ead43",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "41c445ff0f48",
        "lessThan": "e91e8427a1e1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "41c445ff0f48",
        "lessThan": "37d9e304acd9",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/intel/i40e/i40e.h",
      "drivers/net/ethernet/intel/i40e/i40e_main.c"
    ],
    "versions": [
      {
        "version": "3.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.12",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.256",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.218",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.162",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.82",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.5",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]