CVE-2026-68422 btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix root leak if its reloc root is unexpected in mergerelocroots If we have an unexpected relocroot for our root, we jump to the out label but never drop the reference we obtained for root, resulting in a leak. Add a missi...

CVE-2026-68422

The CVE-2026-68422 entry describes a Linux kernel btrfs issue in the merge_reloc_roots path where an unexpected reloc_root could skip releasing the root reference, causing a memory leak. Affected component: btrfs in the Linux kernel; root handling during relocation merge. Root cause: missing btrf...