CVE-2020-12771

unknown
Published — · Modified —
CVSS v3
CVSS v2
VIR risk

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.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-12771

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-12771.html

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debianbookwormfixed5.7.6-1
debian debianbullseyefixed5.7.6-1
debian debianforkyfixed5.7.6-1
debian debiansidfixed5.7.6-1
debian debiantrixiefixed5.7.6-1

References

Verify integrity in audit chain (admin only). AS-IS.