Description: Block subsystem mishandles reference counts
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=2025938
 https://lkml.org/lkml/2021/9/6/781
 https://lkml.org/lkml/2021/10/18/485
Notes:
 bwh> Introduced in 5.15-rc1 by commit 9d3b8813895d "block: change the
 bwh> refcounting for partitions", so never appeared in a stable release.
Bugs:
upstream: released (5.15-rc7) [9fbfabfda25d8774c5a08634fdd2da000a924890]
5.10-upstream-stable: N/A "Vulnerability introduced later"
4.19-upstream-stable: N/A "Vulnerability introduced later"
4.9-upstream-stable: N/A "Vulnerability introduced later"
sid: N/A "Vulnerability introduced and fixed in experimental"
5.10-bullseye-security: N/A "Vulnerability introduced later"
4.19-buster-security: N/A "Vulnerability introduced later"
4.9-stretch-security: N/A "Vulnerability introduced later"