{"cve":"CVE-2018-20836","nvd":{"published":"2019-05-07T14:29:00.303","modified":"2026-06-17T01:53:33.813","status":"Modified","description":"An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-362","CWE-416"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html","http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html","http://www.securityfocus.com/bid/108196","https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae","https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae"],"products":["canonical:ubuntu_linux","debian:debian_linux","f5:traffix_signaling_delivery_controller","linux:linux_kernel","netapp:active_iq_unified_manager","netapp:hci_compute_node","netapp:snapprotect","netapp:solidfire_\\&_hci_management_node","netapp:solidfire_\\&_hci_storage_node","netapp:storage_replication_adapter_for_clustered_data_ontap","netapp:vasa_provider_for_clustered_data_ontap","netapp:virtual_storage_console","opensuse:leap"],"source":"nvd","synced_at":"2026-10-19T20:56:19.218283075+00:00"},"epss":{"cve":"CVE-2018-20836","score":0.05088,"percentile":0.92352,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}