parisc: Handle kgdb breakpoints only in kernel context

The kernel kgdb break instructions should only be handled when running in kernel context. Cc: <stable@vger.kernel.org> # v5.4+ Signed-off-by: Helge Deller <deller@gmx.de>
mariux64 · May 24, 2023 · 6888ff0 · 6888ff0
1 parent df41949
commit 6888ff0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
@@ -306,8 +306,8 @@ static void handle_break(struct pt_regs *regs)
 #endif
 
 #ifdef CONFIG_KGDB
-	if (unlikely(iir == PARISC_KGDB_COMPILED_BREAK_INSN ||
-		iir == PARISC_KGDB_BREAK_INSN)) {
+	if (unlikely((iir == PARISC_KGDB_COMPILED_BREAK_INSN ||
+		iir == PARISC_KGDB_BREAK_INSN)) && !user_mode(regs)) {
 		kgdb_handle_exception(9, SIGTRAP, 0, regs);
 		return;
 	}