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 configuration bits when clearing the interrupt flag and counter overflow.
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 13th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293daePatch
- https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967Patch
- https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21Patch
- https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576Patch
- https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878Patch
- https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293daePatch
- https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967Patch
- https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21Patch
- https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576Patch
- https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.