CVE-2023-52783 net: wangxun: fix kernel panic due to null pointer

2024-05-2115:31:01

Linux

github.com

linux kernel

vulnerability

net

wangxun

fix

kernel panic

null pointer

subsystem

vendor id

wx_sw_init()

memory allocation

kernel panic

AI Score

6.7

Confidence

Low

EPSS

Percentile

9.0%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

net: wangxun: fix kernel panic due to null pointer

When the device uses a custom subsystem vendor ID, the function
wx_sw_init() returns before the memory of ‘wx->mac_table’ is allocated.
The null pointer will causes the kernel panic.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "79625f45ca73",
        "lessThan": "61a550716539",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "79625f45ca73",
        "lessThan": "8ba2c459668c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/wangxun/libwx/wx_hw.c",
      "drivers/net/ethernet/wangxun/ngbe/ngbe_main.c",
      "drivers/net/ethernet/wangxun/txgbe/txgbe_main.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.3"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.3",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "6.6.4",
        "versionType": "custom",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.7",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/wangxun/libwx/wx_hw.c",
      "drivers/net/ethernet/wangxun/ngbe/ngbe_main.c",
      "drivers/net/ethernet/wangxun/txgbe/txgbe_main.c"
    ],
    "defaultStatus": "affected"
  }
]