CVE-2020-27835 log

Source
Severity Low
Remote No
Type Denial of service
Description
A use after free was found in the Linux kernel infiniband hfi1 driver in the way user calls Ioctl after opening the dev file and forking. A local user could use this flaw to crash the system.
Group Package Affected Fixed Severity Status Ticket
AVG-1344 linux 5.9.11.arch2-1 5.9.12.arch1-1 Low Fixed
References
https://bugzilla.redhat.com/show_bug.cgi?id=1901709
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5732f83596f8a573f2cde814cc76a54e1a8995c7
Notes
Workaround
==========

The issue can be mitigated by preventing the module hfi1 from being loaded:

# echo 'blacklist hfi1' > /etc/modprobe.d/CVE-2020-27835.conf