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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47384 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field If driver read tmp value sufficient for (tmp & 0x08) && (!(tmp & 0x80)) && ((tmp & 0x7) == ((tmp >> 4) & 0x7)) from device then Null pointer dereference occurs. (It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers) Also lm75[] does not serve a purpose anymore after switching to devm_i2c_new_dummy_device() in w83791d_detect_subclients(). The patch fixes possible NULL pointer dereference by removing lm75[]. Found by Linux Driver Verification project (linuxtesting.org). [groeck: Dropped unnecessary continuation lines, fixed multi-line alignments]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/6cb01fe630eaffc5a2c3f7364436caddba286623
https://git.kernel.org/stable/c/6cb01fe630eaffc5a2c3f7364436caddba286623
https://git.kernel.org/stable/c/746011193f44f97f8784edcf8327c587946745fc
https://git.kernel.org/stable/c/746011193f44f97f8784edcf8327c587946745fc
https://git.kernel.org/stable/c/7c4fd5de39f273626a2b0f3a446d2cc85cd47616
https://git.kernel.org/stable/c/7c4fd5de39f273626a2b0f3a446d2cc85cd47616
https://git.kernel.org/stable/c/dd4d747ef05addab887dc8ff0d6ab9860bbcd783
https://git.kernel.org/stable/c/dd4d747ef05addab887dc8ff0d6ab9860bbcd783

Weakness Enumeration

CWE-ID CWE Name Source

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47384
NVD Published Date:
05/21/2024
NVD Last Modified:
11/21/2024
Source:
kernel.org