An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blkdrainqueue() use-after-free because a certain error case is mishandled.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20856.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "4.18.7" } ] } ]