#48379: sdl2: real_units_report_dialog_update() pbuf NULL dereference
Open Date: 2023-07-10 06:59
Last Update: 2023-07-10 06:59
URL for this Ticket:
https://osdn.net//projects/freeciv/ticket/48379
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Last Changes/Comment on this Ticket:
2023-07-10 06:59 Updated by: cazfi
* New Ticket "sdl2: real_units_report_dialog_update() pbuf NULL dereference" created
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Ticket Status:
Reporter: cazfi
Owner: (None)
Type: Bugs
Status: Open
Priority: 5 - Medium
MileStone: 3.0.9
Component: SDL2-client
Severity: 5 - Medium
Resolution: None
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Ticket details:
S3_1, clang analyzer:
../../../../src/client/gui-sdl2/repodlgs.c:946:25: warning: Access to field 'id' results in a dereference of a null pointer (loaded from variable 'pbuf') [core.NullDereference]
if ((MAX_ID - pbuf->id) == utype_number(i)) {
^~~~~~~~
Seems actual bug to me. pbuf gets assigned from pwidget which has been assigned (initially) from units_dlg->end_active_widget_list, that might has no value assigned at all since fc_calloc() set it NULL. That can happen when the player has no units at all.
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