In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the PVFS dissector could crash. This was addressed in epan/dissectors/packet-pvfs2.c by preventing a NULL pointer dereference.
Created wireshark tracking bugs for this issue:
Affects: fedora-all [bug 1655944]
This issue seems to have been introduced with commit:
which allowed to read 0 bytes from empty buffer without throwing exception when p == NULL and length == 0. However, p is later used which results in NULL pointer dereference. It affects only wireshark 2.6.4.
This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 5, 6 and 7.