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-rw-r--r--accel/tcg/cputlb.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 010c4c6..707adf7 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -1088,6 +1088,8 @@ void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx,
CPUTLBEntry *entry = tlb_entry(env, mmu_idx, addr);
target_ulong tlb_addr = tlb_addr_write(entry);
+ g_assert(-(addr | TARGET_PAGE_MASK) >= size);
+
if (unlikely(!tlb_hit(tlb_addr, addr))) {
if (!VICTIM_TLB_HIT(addr_write, addr)) {
tlb_fill(env_cpu(env), addr, size, MMU_DATA_STORE,