CVE-2024-35952

In the Linux kernel, the following vulnerability has been resolved:
drm/ast: Fix soft lockup There is a while-loop in ast_dp_set_on_off() that
could lead to infinite-loop. This is because the register, VGACRI-Dx,
checked in this API is a scratch register actually controlled by a MCU,
named DPMCU, in BMC. These scratch registers are protected by scu-lock. If
suc-lock is not off, DPMCU can not update these registers and then host
will have soft lockup due to never updated status. DPMCU is used to control
DP and relative registers to handshake with host’s VGA driver. Even the
most time-consuming task, DP’s link training, is less than 100ms. 200ms
should be enough.