From: Prasad J Pandit Date: Thu, 7 Apr 2016 12:50:08 +0530 Subject: [PATCH] i386: kvmvapic: initialise imm32 variable 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 Cc: qemu-stable@nongnu.org Signed-off-by: Prasad J Pandit Message-Id: <1460013608-16670-1-git-send-email-ppandit@redhat.com> Signed-off-by: Paolo Bonzini (cherry picked from commit 691a02e2ce0c413236a78dee6f2651c937b09fb0) --- 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;