VULNERABILITY INTELLIGENCE
CVE-2018-20856
CVSS score7.8 HIGH
EPSS probability0.71%
CISA KEVNot currently listed
Published2019-07-26
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.
Weakness classification
- CWE-416: Use After Free