Vulnerabilities > CVE-2021-47016 - Unspecified vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
References
- https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae
- https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae
- https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967
- https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967
- https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21
- https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21
- https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576
- https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576
- https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878
- https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878