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Versions Affected : All verisons prior to FreeNAS 11.3-U5


getfsstat(2) is a system call which provides information about mounted filesystems. The kernel provides compatibility system calls for old versions of the interface.

A bug in an internal interface used by getfsstat(2) compatibility system calls could result in a free of an uninitialized pointer when getfsstat(2) is called with an invalid argument.


No workaround is available.


  • Upgrade to FreeNAS 11.3-U5 or later.


Further information