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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/12/05 17:55:44 UTC

[GitHub] [nuttx] gustavonihei commented on a diff in pull request #7789: net/icmpv6: fix UBSan warning

gustavonihei commented on code in PR #7789:
URL: https://github.com/apache/nuttx/pull/7789#discussion_r1039908368


##########
net/icmpv6/icmpv6_input.c:
##########
@@ -336,10 +336,12 @@ void icmpv6_input(FAR struct net_driver_s *dev, unsigned int iplen)
 
                     if ((prefixopt->flags & ICMPv6_PRFX_FLAG_A) != 0)
                       {
+                        FAR void *addr = prefixopt->prefix;

Review Comment:
   You could copy `prefix` out of the packed structure. The target array would then be properly aligned.



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