CVE-2026-43494

CVE-2026-43494 affects the Linux kernel’s net/rds zerocopy path. When iov_iter_get_pages2() fails in rds_message_zcopy_from_user(), pinned pages are released and rm->data.op_mmp_znotifier is cleared, but rm->data.op_nents may not be reset. This leads to the cleanup loop in rds_message_purge...