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authorSimo Sorce <idra@samba.org>2009-03-09 18:04:38 -0400
committerSimo Sorce <idra@samba.org>2009-03-09 20:12:11 -0400
commitf088353d37b433af7b979a17871233cccddf7aca (patch)
tree35a022bf85b756bb500fda1b195aeb938da29925 /source4/smbd
parent218ce0e80532b0dbc595e72502d9596a35acdffd (diff)
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Fix potential segfaults using freed memory.
In some code paths ltdb_context was still referenced even after we were returned an error by one of the callbacks. Because the interface assumes that once an error is returned the ldb_request may be freed, and because the ltdb_context was allocated as a child of the request, this might cause access to freed memory. Allocate the ltdb_context on ldb, and keep track of what's going on with the request by adding a spy children on it. This way even if the request is freed before the ltdb_callback is called, we will safely free the ctx and just quietly return.
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