[Qemu-devel] [PATCH 3/6] mips: null pointer deref should segfault

[Wesley W. Terpstra]

Dereferencing a null pointer causes an exception 0xC (EXCP_AdEL)
instead of EXCP_TLBL. This should also trigger a segfault.

Signed-off-by: Wesley W. Terpstra <address@hidden>
---

diff --git a/linux-user/main.c b/linux-user/main.c
index 289054b..26ebc73 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -2093,6 +2107,8 @@ void cpu_loop(CPUMIPSState *env)
             break;
         case EXCP_TLBL:
         case EXCP_TLBS:
+        case EXCP_AdEL:
+        case EXCP_AdES:
             info.si_signo = TARGET_SIGSEGV;
             info.si_errno = 0;
             /* XXX: check env->error_code */

02-mips-null-ptr-segv.patch
Description: Text Data