Improper Locking Affecting kernel-tools-devel package, versions <0:4.14.186-146.268.amzn2
Threat Intelligence
EPSS
0.11% (46th
percentile)
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Test your applications- Snyk ID SNYK-AMZN2-KERNELTOOLSDEVEL-1682843
- published 27 Sep 2021
- disclosed 9 May 2020
Introduced: 9 May 2020
CVE-2020-12771 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel-tools-devel to version 0:4.14.186-146.268.amzn2 or higher.
This issue was patched in ALAS2-2020-1465.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools-devel package and not the kernel-tools-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12771
- https://www.oracle.com/security-alerts/cpuApr2021.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
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- 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/
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