The vulnerability of the btrfs_copy_root() function in the btrfs component of Linux kernel allows a hacker to trigger a service failure.

The vulnerability of the btrfscopyroot function in the btrfs component of the Linux operating system is related to the copying of buffers without checking the input data. Exploiting this vulnerability allows an attacker to cause a service failure...

UBUNTU-CVE-2025-39800

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort transaction on unexpected eb generation at btrfscopyroot If we find an unexpected generation for the extent buffer we are cloning at btrfscopyroot, we just WARNON and don't error out and abort the transaction, meanin...