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MXS-3200 Ensure that passed in p to buffer remains valid

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The pointer to pointer to GWBUF must in all cases be updated.
Otherwise it will lead to
1) access to free data, and
2) a double delete.
This commit is contained in:
Johan Wikman
2020-10-06 16:43:59 +03:00
parent 95792c8185
commit 147ed8ef22
1 changed files with 1 additions and 0 deletions
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1
server/modules/routing/schemarouter/schemaroutersession.cc
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@ -1026,6 +1026,7 @@ int SchemaRouterSession::inspect_mapping_states(SSRBackend& bref,
} }
else if (rc == SHOWDB_FATAL_ERROR) else if (rc == SHOWDB_FATAL_ERROR)
{ {
*wbuf = writebuf;
return -1; return -1;
} }
else else