CVE-2025-37856: btrfs: harden block_group::bg_list against list_del() races
Published May 9, 2025
·Updated
btrfs: harden blockgroup::bglist against listdel() races
Affected Software
8 affected components
Linux Linux kernel
Microsoft cbl2 kernel 5.15.186.1-1
Microsoft azl3 kernel 6.6.112.1-2
Microsoft azl3 kernel 6.6.117.1-1
Linux Linux kernel<6.12.24
Linux Linux kernel>=6.13<6.13.12
Linux Linux kernel>=6.14<6.14.3
Microsoft azl3 kernel 6.6.119.3-1
Event History
May 9, 2025
CVE Published
via MITRE·06:42 AM
Data Sourced
via MITRE·06:42 AM
DescriptionSeverity
Data Sourced
via NVD·07:16 AM
RemedyDescriptionSeverityAffected Software
Sep 4, 2025
Data Sourced
via Microsoft·01:23 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·01:23 AM
Affected Software
Updated
via Microsoft·08:23 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2025-37856?
The severity of CVE-2025-37856 is classified as medium.
2
How do I fix CVE-2025-37856?
To fix CVE-2025-37856, you need to update the Linux kernel to the latest patched version.
3
What does CVE-2025-37856 affect?
CVE-2025-37856 affects the Linux Kernel, specifically the btrfs file system functionality.
4
Can CVE-2025-37856 be exploited remotely?
CVE-2025-37856 requires local user access for exploitation, therefore it is not a remote vulnerability.
5
What is the impact of CVE-2025-37856?
The impact of CVE-2025-37856 includes potential instability or data corruption within the btrfs file system.