CVE-2021-47054 bus: qcom: Put child node before return

2024-02-2922:37:29

Linux

www.cve.org

linux kernel

vulnerability

resolved

bus qcom

child node

reference count

potential leak

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.0%

JSON

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

bus: qcom: Put child node before return

Put child node before return to fix potential reference count leak.
Generally, the reference count of child is incremented and decremented
automatically in the macro for_each_available_child_of_node() and should
be decremented manually if the loop is broken in loop body.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/bus/qcom-ebi2.c"
    ],
    "versions": [
      {
        "version": "335a12754808",
        "lessThan": "a6191e91c10e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "94810fc52925",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "a399dd80e697",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "3a76ec28824c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "00f6abd3509b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "6b68c03dfc79",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "c6f8e0dc8da1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "335a12754808",
        "lessThan": "ac6ad7c2a862",
        "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/bus/qcom-ebi2.c"
    ],
    "versions": [
      {
        "version": "4.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.9",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.269",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.233",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.191",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.119",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.37",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.11.21",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.4",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]