CVE-2021-47571 staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

2024-05-2415:12:57

Linux

www.cve.org

linux kernel

staging

rtl8192e

use after free

6.6 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

JSON

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

staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

The free_rtllib() function frees the “dev” pointer so there is use
after free on the next line. Re-arrange things to avoid that.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/staging/rtl8192e/rtl8192e/rtl_core.c"
    ],
    "versions": [
      {
        "version": "66898177e7e5",
        "lessThan": "d43aecb694b1",
        "status": "affected",
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  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/staging/rtl8192e/rtl8192e/rtl_core.c"
    ],
    "versions": [
      {
        "version": "3.2",
        "status": "affected"
      },
      {
        "version": "0",
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        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.4.294",
        "lessThanOrEqual": "4.4.*",
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      },
      {
        "version": "4.9.292",
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      },
      {
        "version": "4.14.257",
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      {
        "version": "4.19.219",
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        "status": "unaffected",
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      {
        "version": "5.4.163",
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        "status": "unaffected",
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      {
        "version": "5.10.83",
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      {
        "version": "5.15.6",
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      {
        "version": "5.16",
        "lessThanOrEqual": "*",
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        "versionType": "original_commit_for_fix"
      }
    ]
  }
]