A flaw was found in the Linux kernel. Reading /proc/sysvipc/shm does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1988923]
Has this issue been reported upstream? Is there any reference to it?
Not reported upstream, patches are being worked on. It is not considered high impact because of the requirements and need to have massive amount of shm (usually well above ulimits)
Product bug https://bugzilla.redhat.com/show_bug.cgi?id=1980619
In reply to comment #9:
> Has this issue been reported upstream? Is there any reference to it?
Please see comment#10.