CVE-2025-68771

Summary of CVE-2025-68771 (Linux kernel, ocfs2): A kernel BUG in ocfs2_find_victim_chain() was triggered when cl_next_free_rec in the allocation chain list was 0, which caused a BUG_ON(!cl->cl_next_free_rec) panic. The fix adds a guard in ocfs2_claim_suballoc_bits() to handle two conditions be...