{"cve":"CVE-2020-12771","nvd":{"published":"2020-05-09T21:15:11.210","modified":"2026-06-17T02:52:16.693","status":"Modified","description":"An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-667"],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html","http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html","https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html","https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html","https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","netapp:a700s_firmware","netapp:active_iq_unified_manager","netapp:cloud_backup","netapp:element_software","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h610c_firmware","netapp:h610s_firmware","netapp:h615c_firmware","netapp:h700e_firmware","netapp:h700s_firmware","netapp:hci_bootstrap_os","netapp:hci_management_node","netapp:solidfire","netapp:steelstore_cloud_integrated_storage","opensuse:leap","oracle:sd-wan_edge"],"source":"nvd","synced_at":"2026-10-19T21:04:18.695612450+00:00"},"epss":{"cve":"CVE-2020-12771","score":0.00519,"percentile":0.44109,"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."]}