parisc: Handle kprobes breakpoints only in kernel context

commit df419492e428b6a2bce98d0f613c58a13da6666c upstream.

The kernel kprobes break instructions should only be handled when running
in kernel context.

Cc: <stable@vger.kernel.org> # v5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index dff447f700421e04919e27fffcf8c6e2a0a5c741..67b51841dc8b4f1cfcf8b20789c2e61ae1dc4afb 100644 (file)
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -291,11 +291,11 @@ static void handle_break(struct pt_regs *regs)
        }
 
 #ifdef CONFIG_KPROBES
-       if (unlikely(iir == PARISC_KPROBES_BREAK_INSN)) {
+       if (unlikely(iir == PARISC_KPROBES_BREAK_INSN && !user_mode(regs))) {
                parisc_kprobe_break_handler(regs);
                return;
        }
-       if (unlikely(iir == PARISC_KPROBES_BREAK_INSN2)) {
+       if (unlikely(iir == PARISC_KPROBES_BREAK_INSN2 && !user_mode(regs))) {
                parisc_kprobe_ss_handler(regs);
                return;
        }