CVE-2022-49162

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

Description A crash issue has been identified in the Linux kernel, specifically in the sm712fb driver when writing to the framebuffer. The driver crashes when attempting to write three bytes, resulting in a page fault error. The issue is related to the smtcfb write() function and can be triggered through the vfs write() and ksys write() functions. The error is characterized by a BUG message indicating an inability to handle a page fault for a specific address, followed by a call trace.

Recommendations To resolve this issue, the fix involves removing the open-coded endianness fixup code from the smtcfb write() function. At the moment, there is no information about a newer version that contains a fix for this vulnerability.