CVE - CVE-2021-47384

CVE-ID
CVE-2021-47384	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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]
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/6cb01fe630eaffc5a2c3f7364436caddba286623 URL:https://git.kernel.org/stable/c/6cb01fe630eaffc5a2c3f7364436caddba286623 MISC:https://git.kernel.org/stable/c/746011193f44f97f8784edcf8327c587946745fc URL:https://git.kernel.org/stable/c/746011193f44f97f8784edcf8327c587946745fc MISC:https://git.kernel.org/stable/c/7c4fd5de39f273626a2b0f3a446d2cc85cd47616 URL:https://git.kernel.org/stable/c/7c4fd5de39f273626a2b0f3a446d2cc85cd47616 MISC:https://git.kernel.org/stable/c/dd4d747ef05addab887dc8ff0d6ab9860bbcd783 URL:https://git.kernel.org/stable/c/dd4d747ef05addab887dc8ff0d6ab9860bbcd783
Assigning CNA
kernel.org
Date Record Created
20240521	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)