linux is vulnerable to denial of service (DoS). The vulnerability exists through a deadlock in btree_gc_coalesce
in drivers/md/bcache/btree.c
, when a coalescing operation fails.
lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html
lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
lists.debian.org/debian-lts-announce/2020/08/msg00019.html
lists.debian.org/debian-lts-announce/2020/10/msg00032.html
lists.debian.org/debian-lts-announce/2020/10/msg00034.html
lkml.org/lkml/2020/4/26/87
security.netapp.com/advisory/ntap-20200608-0001/
usn.ubuntu.com/4462-1/
usn.ubuntu.com/4463-1/
usn.ubuntu.com/4465-1/
usn.ubuntu.com/4483-1/
usn.ubuntu.com/4485-1/
www.oracle.com/security-alerts/cpuApr2021.html