CVE-2021-47204 net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove

2024-04-1018:56:37

Linux

github.com

linux kernel

vulnerability

dpaa2-eth

netdev

use-after-free

AI Score

7.2

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

total

JSON

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

net: dpaa2-eth: fix use-after-free in dpaa2_eth_remove

Access to netdev after free_netdev() will cause use-after-free bug.
Move debug log before free_netdev() call to avoid it.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "7472dd9f6499",
        "lessThan": "d74ff10ed2d9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7472dd9f6499",
        "lessThan": "1c4099dc0d6a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7472dd9f6499",
        "lessThan": "32d468622474",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "7472dd9f6499",
        "lessThan": "9b5a333272a4",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.17"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.17",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "5.4.162",
        "versionType": "custom",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.82",
        "versionType": "custom",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.5",
        "versionType": "custom",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "5.16",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"
    ],
    "defaultStatus": "affected"
  }
]