DEBIAN-CVE-2026-99232: Debian/linux vulnerability

In the Linux kernel, the following vulnerability has been resolved: tracing/syscalls: Use copyfromuser for the faultable syscall buffer syscallcopyuserarray() copies the buffer argument of faultable syscalls (write, pwrite64, ...) with copyfromuser(), which skips accessok(). Use copyfromuser() instead so a non-user address is rejected and the entry is recorded as faulted. It could be a security concern for machines that trust perf a bit too much.