https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7511
Summary: crashes in interface list, pipe handling
Product: Wireshark
Version: SVN
Platform: x86
OS/Version: All
Status: NEW
Severity: Major
Priority: Low
Component: Wireshark
AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
ReportedBy: wireshark@xxxxxxxxx
Build Information:
linux (redhat, debian), svn head
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Hi,
there's some crashes related to interface list, pipes
mkfifo /home/martin/tmp/wpipe
wireshark -i /home/martin/tmp/wpipe
select Interface List -> segmentation fault
The pipe's interface_t is initialized by scan_local_interfaces(). However,
device.if_info remains uninitialized. set_ip_addr_label() wants to read
if_info->name and crashes when name points to random data.
If a pipe is added via Capture / Options / Manage Interfaces, it's initialized
in add_pipe_cb(), where if_info.name is set to NULL. If I bring up the
interface list and tick/untick such an interface, wireshark crashes in
store_selected() when a strcmp() is run on the name.
Lastly, a pipe initialized by scan_local_interfaces() has an undefined "locked"
field. Sometimes I could not activate/deactive the interface in the interface
list as it was locked by default.
The attached patch should handle all of this. If you see any side effects,
please let me know. (Can't test on windows at the moment) Otherwise, I'll
commit this tomorrow and schedule it for 1.8.1, where I could reproduce these
issues as well.
Thanks,
Martin
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