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cve416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2021-47331
HistoryMay 21, 2024 - 3:15 p.m.

CVE-2021-47331

2024-05-2115:15:20
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
28
linux kernel
usb vulnerability
null pointer

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%

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

usb: common: usb-conn-gpio: fix NULL pointer dereference of charger

When power on system with OTG cable, IDDIG’s interrupt arises before
the charger registration, it will cause a NULL pointer dereference,
fix the issue by registering the power supply before requesting
IDDIG/VBUS irq.

Affected configurations

Vulners
Node
linuxlinux_kernelRange5.10.05.10.52
OR
linuxlinux_kernelRange5.11.05.12.19
OR
linuxlinux_kernelRange5.13.05.13.4
OR
linuxlinux_kernelRange5.14.0

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/common/usb-conn-gpio.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f4",
        "lessThan": "8e8d910e9a3a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "436906fd248e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "1a133a0996d6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "880287910b18",
        "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/usb/common/usb-conn-gpio.c"
    ],
    "versions": [
      {
        "version": "5.10.52",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.19",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13.4",
        "lessThanOrEqual": "5.13.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.14",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%