An issue was discovered in fs/gfs2/rgrp.c in the Linux kernel before 4.8. A use-after-free is caused by the functions gfs2_clear_rgrpd and read_rindex_entry.
packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=36e4ad0316c017d5b271378ed9a1c9a4b77fab5f
lists.debian.org/debian-lts-announce/2019/09/msg00025.html
seclists.org/bugtraq/2019/Nov/11
support.f5.com/csp/article/K31332013
support.f5.com/csp/article/K31332013?utm_source=f5support&%3Butm_medium=RSS
usn.ubuntu.com/4145-1/