CVE-2022-49989

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the error exit of privcmd ioctl dm op() in the Linux kernel, specifically in the xen/privcmd module. This error exit potentially calls unlock pages() with pages being NULL, leading to a NULL dereference. Additionally, lock pages() does not check if pin user pages fast() has been completely successful, which may result in not locking all pages into memory. This could cause sporadic failures when using the related memory in user mode.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.