CVE-2020-12771

medium

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.

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

https://security.netapp.com/advisory/ntap-20200608-0001/

https://usn.ubuntu.com/4462-1/

https://usn.ubuntu.com/4463-1/

https://usn.ubuntu.com/4465-1/

https://usn.ubuntu.com/4483-1/

https://usn.ubuntu.com/4485-1/

https://www.oracle.com/security-alerts/cpuApr2021.html

Details

Published: 2020-05-09

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H