PT-2021-8248 · Linux+2 · Linux Kernel+2
Hulk Robot
·
Published
2021-10-12
·
Updated
2024-11-01
·
CVE-2021-47440
CVSS v3.1
2.3
Low
| Vector | AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.15.0-rc2-00142-g9978db750e31-dirty #11
Description
The vulnerability is related to the
devm regmap init encx24j600 function in the Linux kernel, which may return an error due to out-of-memory conditions, resulting in a null pointer dereference when reading or writing registers. This can cause a general protection fault in the encx24j600 spi probe function. The issue is related to the encx24j600 component of the Linux kernel.Recommendations
To resolve the issue, add an error check in the
devm regmap init encx24j600 function to avoid the null pointer dereference situation. As a temporary workaround, consider disabling the encx24j600 component until a patch is available. However, since the provided information does not specify a fixed version, it is essential to monitor for updates that include the necessary error check in devm regmap init encx24j600. At the moment, there is no information about a newer version that contains a fix for this vulnerability.NULL Pointer Dereference
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse