Description: zram sysfs resource consumption
References:
 https://www.openwall.com/lists/oss-security/2020/06/18/1
 https://lore.kernel.org/linux-block/20200617103412.GA2027053@kroah.com/
 https://bugzilla.redhat.com/show_bug.cgi?id=1847832
Notes:
 carnil> Commit fixes f40609d1591f ("zram: convert remaining
 carnil> CLASS_ATTR() to CLASS_ATTR_RO()") in 4.13-rc1.
Bugs:
upstream: needed
4.19-upstream-stable: needed
4.9-upstream-stable: N/A "Vulnerable code introduced later"
3.16-upstream-stable: N/A "Vulnerable code introduced later"
sid: needed
4.19-buster-security: needed
4.9-stretch-security: N/A "Vulnerable code introduced later"
3.16-jessie-security: N/A "Vulnerable code introduced later"