From: Helge Deller <deller@xxxxxx>
commit 6888ff04e37d01295620a73f3f7efbc79f6ef152 upstream.
The kernel kgdb break instructions should only be handled when running
in kernel context.
Cc: <stable@xxxxxxxxxxxxxxx> # v5.4+
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/kernel/traps.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -305,8 +305,8 @@ static void handle_break(struct pt_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;
}
