CVE-2021-47016

medium

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.

References

https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878

https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576

https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21

https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967

https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae

Details

Source: Mitre, NVD

Published: 2024-02-29

Updated: 2025-01-09

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00048