CVE-2021-47529 iwlwifi: Fix memory leaks in error handling path

2024-05-2415:09:40

Linux

github.com

linux kernel

vulnerability

iwlwifi

memory leaks

6.9 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%

JSON

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

iwlwifi: Fix memory leaks in error handling path

Should an error occur (invalid TLV len or memory allocation failure), the
memory already allocated in ‘reduce_power_data’ should be freed before
returning, otherwise it is leaking.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/intel/iwlwifi/fw/uefi.c"
    ],
    "versions": [
      {
        "version": "9dad325f9d57",
        "lessThan": "4768935c2540",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9dad325f9d57",
        "lessThan": "a571bc28326d",
        "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/wireless/intel/iwlwifi/fw/uefi.c"
    ],
    "versions": [
      {
        "version": "5.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.14",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.7",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]