Linux · Linux Kernel · CVE-2021-47077
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
The issue is related to a NULL pointer dereference in the `qedf update link speed()` function when `shost data` is not initialized. This occurs when the `qedf link update()` API is called from QED. The problem results in a NULL pointer dereference when trying to update `supported speeds`. To fix this, a NULL pointer check should be added before dereferencing `shost data`.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.