CVE-2020-12771: Medium severity Linux Linux kernel vulnerability
An issue was discovered in the Linux kernel through 5.6.11. btreegccoalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.262-1Fixed in 6.1.176-1Fixed in 6.1.180-1Fixed in 6.12.94-1Fixed in 6.12.101-1Fixed in 7.1.8-1Fixed in 7.1.8-2
Event History
Frequently Asked Questions
What is the severity of CVE-2020-12771?
CVE-2020-12771 has a moderate severity level due to a potential deadlock during coalescing operations in the Linux kernel.
How do I fix CVE-2020-12771?
To fix CVE-2020-12771, upgrade to Linux kernel versions 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, or 6.12.10-1.
Which versions of the Linux kernel are vulnerable to CVE-2020-12771?
Versions of the Linux kernel up to 5.6.11 are vulnerable to CVE-2020-12771.
What is the impact of CVE-2020-12771 on system performance?
The impact of CVE-2020-12771 can result in a system deadlock during certain operations, potentially affecting system availability.
Is CVE-2020-12771 exploited in the wild?
As of the last update, there is no public information indicating that CVE-2020-12771 is actively exploited in the wild.