CVE-2025-37779

CVE-2025-37779 concerns the Linux kernel’s lib/iov_iter.c and arises from an incorrect refcount fix for non-slab folio pages used in EROFS/v9fs p9 read paths. The root cause is that pages in a bvec can be coalesced across folio boundaries, and the non-slab folio refcount was not increased suffici...