CVE-2020-12771medium
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
https://lkml.org/lkml/2020/4/26/87
https://security.netapp.com/advisory/ntap-20200608-0001/
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://usn.ubuntu.com/4463-1/
https://usn.ubuntu.com/4465-1/
https://usn.ubuntu.com/4483-1/
https://usn.ubuntu.com/4462-1/
https://usn.ubuntu.com/4485-1/
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Details
Source: MITRE
Published: 2020-05-09
Updated: 2022-04-26
Type: CWE-667
Risk Information
CVSS v2
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
CVSS v3
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM