m68k: mvme147,mvme16x: Don't wipe PCC timer config bits
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 88% of all CVEs
observed exploitation
nono source reports it
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
Linux · LinuxReferences
https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293daehttps://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878