[Bug nscd/5381] New: nscd: Race condition of mempool_alloc() .. cache_add() and gc()

["pasky at suse dot cz" <sourceware-bugzilla at sourceware dot org>]

nscd does not use sufficient locking, allowing gc() to be run between
mempool_alloc() of data and its addition by cache_add(). Thus, gc() will free
the data again before it could have been added and properly accounted for. The
code should take the read database lock already before the mempool_alloc() call.

-- 
           Summary: nscd: Race condition of mempool_alloc() .. cache_add()
                    and gc()
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: nscd
        AssignedTo: drepper at redhat dot com
        ReportedBy: pasky at suse dot cz
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=5381

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