CVE-2024-36020

2024-05-3015:15:49

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

web.nvd.nist.gov

cve-2024-36020

nvd

security vulnerability

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.1%

JSON

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

i40e: fix vf may be used uninitialized in this function warning

To fix the regression introduced by commit 52424f974bc5, which causes
servers hang in very hard to reproduce conditions with resets races.
Using two sources for the information is the root cause.
In this function before the fix bumping v didn’t mean bumping vf
pointer. But the code used this variables interchangeably, so stale vf
could point to different/not intended vf.

Remove redundant “v” variable and iterate via single VF pointer across
whole function instead to guarantee VF pointer validity.

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.1–4.19.312

linuxlinux_kernelRange4.20.0–5.4.274

linuxlinux_kernelRange5.5.0–5.10.215

linuxlinux_kernelRange5.11.0–5.15.154

linuxlinux_kernelRange5.16.0–6.1.85

linuxlinux_kernelRange6.2.0–6.6.26

linuxlinux_kernelRange6.7.0–6.8.5

linuxlinux_kernelRange6.9.0≥

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_virtchnl_pf.c"
    ],
    "versions": [
      {
        "version": "76ed715836c6",
        "lessThan": "cc9cd02dd9e8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e88c2a1e28c5",
        "lessThan": "9dcf0fcb80f6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9abae363af5c",
        "lessThan": "b8e82128b44f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c39de3ae5075",
        "lessThan": "951d2748a2a8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "52424f974bc5",
        "lessThan": "3e89846283f3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "52424f974bc5",
        "lessThan": "0dcf573f9977",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "52424f974bc5",
        "lessThan": "06df7618f591",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "52424f974bc5",
        "lessThan": "f37c4eac99c2",
        "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_virtchnl_pf.c"
    ],
    "versions": [
      {
        "version": "6.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.1",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.312",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.274",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.215",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.154",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.85",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.26",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.5",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]