CVE-2021-47423 drm/nouveau/debugfs: fix file release memory leak

2024-05-2115:04:10

Linux

github.com

linux kernel

drm nouveau

debugfs

memory leak

single_open

single_release

file release

AI Score

6.9

Confidence

Low

EPSS

Percentile

10.3%

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

drm/nouveau/debugfs: fix file release memory leak

When using single_open() for opening, single_release() should be
called, otherwise the ‘op’ allocated in single_open() will be leaked.

CNA Affected

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "df0c94189236",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "9f9d4c88b2ed",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "1508b09945bd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "11cd944bb87d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "f69556a42043",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "88c3610045ca",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6e9fc177399f",
        "lessThan": "f5a8703a9c41",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/nouveau/nouveau_debugfs.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.5"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.5",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "4.9.287",
        "versionType": "custom",
        "lessThanOrEqual": "4.9.*"
      },
      {
        "status": "unaffected",
        "version": "4.14.251",
        "versionType": "custom",
        "lessThanOrEqual": "4.14.*"
      },
      {
        "status": "unaffected",
        "version": "4.19.211",
        "versionType": "custom",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.153",
        "versionType": "custom",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.73",
        "versionType": "custom",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.14.12",
        "versionType": "custom",
        "lessThanOrEqual": "5.14.*"
      },
      {
        "status": "unaffected",
        "version": "5.15",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/nouveau/nouveau_debugfs.c"
    ],
    "defaultStatus": "affected"
  }
]