title: m68k: mvme147,mvme16x: Don't wipe PCC timer config bits
description: 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:
{
product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions:
version: 7529b90d051e, lessThan: f6a90818a320, status: affected, versionType: git
version: 7529b90d051e, lessThan: 1dfb26df15fc, status: affected, versionType: git
version: 7529b90d051e, lessThan: 73fdeb612d25, status: affected, versionType: git
version: 7529b90d051e, lessThan: 5d3422516934, status: affected, versionType: git
version: 7529b90d051e, lessThan: 43262178c043, status: affected, versionType: git
}
{
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions:
version: 5.2, status: affected
version: 0, lessThan: 5.2, status: unaffected, versionType: custom
version: 5.4.119, lessThanOrEqual: 5.4.*, status: unaffected, versionType: custom
version: 5.10.37, lessThanOrEqual: 5.10.*, status: unaffected, versionType: custom
version: 5.11.21, lessThanOrEqual: 5.11.*, status: unaffected, versionType: custom
version: 5.12.4, lessThanOrEqual: 5.12.*, status: unaffected, versionType: custom
version: 5.13, lessThanOrEqual: *, status: unaffected, versionType: original_commit_for_fix
}
