[Qemu-devel] [PATCH 01/56] i386: kvmvapic: initialise imm32 variable

[Michael Roth]

From: Prasad J Pandit <address@hidden>

When processing Task Priorty Register(TPR) access, it could leak
automatic stack variable 'imm32' in patch_instruction().
Initialise the variable to avoid it.

Reported by: Donghai Zdh <address@hidden>
Cc: address@hidden
Signed-off-by: Prasad J Pandit <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>

(cherry picked from commit 691a02e2ce0c413236a78dee6f2651c937b09fb0)
Signed-off-by: Michael Roth <address@hidden>
---
 hw/i386/kvmvapic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
index c69f374..ff1e31a 100644
--- a/hw/i386/kvmvapic.c
+++ b/hw/i386/kvmvapic.c
@@ -394,7 +394,7 @@ static void patch_instruction(VAPICROMState *s, X86CPU 
*cpu, target_ulong ip)
     CPUX86State *env = &cpu->env;
     VAPICHandlers *handlers;
     uint8_t opcode[2];
-    uint32_t imm32;
+    uint32_t imm32 = 0;
     target_ulong current_pc = 0;
     target_ulong current_cs_base = 0;
     int current_flags = 0;
-- 
1.9.1