In the Linux kernel 5.3.10, there is a use-after-free (read) in the perf_trace_lock_acquire function (related to include/trace/events/lock.h).
bugzilla.kernel.org/show_bug.cgi?id=205705
lists.fedoraproject.org/archives/list/[email protected]/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/
lists.fedoraproject.org/archives/list/[email protected]/message/VJSIZWKW7RDHKU3CHC5BFAQI43NVHLUQ/
security.netapp.com/advisory/ntap-20200103-0001/
usn.ubuntu.com/4368-1/
usn.ubuntu.com/4369-1/