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Diffstat (limited to 'hw/net/ne2000.c')
-rw-r--r--hw/net/ne2000.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/hw/net/ne2000.c b/hw/net/ne2000.c
index 010f9efccd..a3dffff2ad 100644
--- a/hw/net/ne2000.c
+++ b/hw/net/ne2000.c
@@ -467,8 +467,9 @@ static inline void ne2000_mem_writel(NE2000State *s, uint32_t addr,
                                      uint32_t val)
 {
     addr &= ~1; /* XXX: check exact behaviour if not even */
-    if (addr < 32 ||
-        (addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
+    if (addr < 32
+        || (addr >= NE2000_PMEM_START
+            && addr + sizeof(uint32_t) <= NE2000_MEM_SIZE)) {
         stl_le_p(s->mem + addr, val);
     }
 }
@@ -497,8 +498,9 @@ static inline uint32_t ne2000_mem_readw(NE2000State *s, uint32_t addr)
 static inline uint32_t ne2000_mem_readl(NE2000State *s, uint32_t addr)
 {
     addr &= ~1; /* XXX: check exact behaviour if not even */
-    if (addr < 32 ||
-        (addr >= NE2000_PMEM_START && addr < NE2000_MEM_SIZE)) {
+    if (addr < 32
+        || (addr >= NE2000_PMEM_START
+            && addr + sizeof(uint32_t) <= NE2000_MEM_SIZE)) {
         return ldl_le_p(s->mem + addr);
     } else {
         return 0xffffffff;