fix use after free

nim-lang · Oct 22, 2023 · 8556d86 · 8556d86
1 parent c13c485
commit 8556d86
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/pure/nativesockets.nim b/lib/pure/nativesockets.nim
@@ -392,6 +392,8 @@ when not useNimNetLite:
       myAddr: pointer
       addrLen = 0
       family = 0
+
+    defer: freeAddrInfo(addrInfo)
 
     if addrInfo.ai_addr.sa_family.cint == nativeAfInet:
       family = nativeAfInet
@@ -404,8 +406,6 @@ when not useNimNetLite:
     else:
       raise newException(IOError, "Unknown socket family in `getHostByAddr()`")
 
-    freeAddrInfo(addrInfo)
-
     when useWinVersion:
       var s = winlean.gethostbyaddr(cast[ptr InAddr](myAddr), addrLen.cuint,
                                     cint(family))