SUSE CVE-2025-40209

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...

CVE-2025-40209 btrfs: fix memory leak of qgroup_list in btrfs_add_qgroup_relation

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...

CVE-2025-40209

CVE-2025-40209 affects the Linux kernel. The btrfs path btrfs_add_qgroup_relation() leaks memory when called with invalid qgroup levels (src >= dst) due to an early return before freeing the preallocated qgroup_list. The leak occurs because cleanup is bypassed on that error path; the caller’s ...