NetSight
IP …
medium5.5

CVE-2021-47016

In the Linux kernel, the following vulnerability has been resolved: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits Don't clear the timer 1 configurati…

Impact

In the Linux kernel, the following vulnerability has been resolved: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits Don't clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As Michael reported, "This results in no timer interrupts being delivered after the first. Initialization then hangs in calibrate_delay as the jiffies counter is not updated." On mvme16x, enable the timer after requesting the irq, consistent with mvme147.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.2 before 5.4.119
from 5.5 before 5.10.37
from 5.11 before 5.11.21
from 5.12 before 5.12.4

References