Vulnerability of the btrfs_add_qgroup_relation() function (fs/btrfs/qgroup.c) in the Linux kernel, allowing a hacker to cause a service failure

The vulnerability of the btrfsaddqgrouprelation function fs/btrfs/qgroup.c in the Linux kernel is related to memory release errors. Exploiting this vulnerability could allow an attacker to cause a service failure...

EUVD-2025-198438

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak of qgrouplist in btrfsaddqgrouprelation When btrfsaddqgrouprelation is called with invalid qgroup levels src = dst, the function returns -EINVAL directly without freeing the preallocated qgrouplist structur...