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authorPrasad J Pandit <pjp@fedoraproject.org>2016-04-07 12:50:08 +0530
committerPaolo Bonzini <pbonzini@redhat.com>2016-05-23 16:53:43 +0200
commit691a02e2ce0c413236a78dee6f2651c937b09fb0 (patch)
treefec6b40d5866f3c0663cecf8ffd6346864551e4d /hw/i386
parentdfc007f7f7aab982a8c22cbcb783d72b0db99705 (diff)
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 <donghai.zdh@alibaba-inc.com> Cc: qemu-stable@nongnu.org Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Message-Id: <1460013608-16670-1-git-send-email-ppandit@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/kvmvapic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/i386/kvmvapic.c b/hw/i386/kvmvapic.c
index 8fd27ba2f4..5b71b1ba46 100644
--- a/hw/i386/kvmvapic.c
+++ b/hw/i386/kvmvapic.c
@@ -397,7 +397,7 @@ 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;
uint32_t current_flags = 0;