CVE-2024-36021 net: hns3: fix kernel crash when devlink reload during pf initialization

2024-05-3014:59:45

Linux

github.com

linux kernel

vulnerability

net

hns3

fix

kernel crash

devlink reload

pf initialization

hardware resources

devl_lock

6.8 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%

JSON

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

net: hns3: fix kernel crash when devlink reload during pf initialization

The devlink reload process will access the hardware resources,
but the register operation is done before the hardware is initialized.
So, processing the devlink reload during initialization may lead to kernel
crash. This patch fixes this by taking devl_lock during initialization.

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/hisilicon/hns3/hns3pf/hclge_main.c"
    ],
    "versions": [
      {
        "version": "b741269b2759",
        "lessThan": "50b69054f455",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b741269b2759",
        "lessThan": "1b550dae5590",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b741269b2759",
        "lessThan": "7ca0f73e5e2d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b741269b2759",
        "lessThan": "93305b77ffcb",
        "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/hisilicon/hns3/hns3pf/hclge_main.c"
    ],
    "versions": [
      {
        "version": "5.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "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"
      }
    ]
  }
]