[FreeBSD] ptrace PT_SC_REMOTE missing argument validation: 32GiB memmove underflow + sysent out-of-bounds call

Summary A local unprivileged user can trigger a 32GiB memmove underflow via ptrace PTSCREMOTE with pscrnargs=0, and call arbitrary sysent function pointers due to missing syscall number bounds check in ptracesyscallreq. This allows kernel code execution under security.bsd.unprivilegedprocdebug=1...

CVE-2026-31716 fs/ntfs3: validate rec->used in journal-replay file record check

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate rec-used in journal-replay file record check checkfilerecord validates rec-total against the record size but never validates rec-used. The doaction journal-replay handlers read rec-used from disk and use it to...