Created attachment 343235 [details] Test case for the bug Description of problem: If SDL uses the event interface on Linux for accessing joysticks, the joystick setup might depend on uninitialized bytes. Version-Release number of selected component (if applicable): SDL-1.2.13-9.f11 How reproducible: Init a joystick with SDL and trace the application with valgrind. A test case is attached for this. Steps to Reproduce: 1. Compile the test case with gcc `sdl-config --libs --cflags` -o SDL-1.2.13.isjoystick.testcase SDL-1.2.13.isjoystick.testcase.c 2. Then execute valgrind --track-origins=yes ./SDL-1.2.13.isjoystick.testcase Actual results: valgrind reports something like ==12393== Conditional jump or move depends on uninitialised value(s) ==12393== at 0x4C76BFF: SDL_SYS_JoystickInit (SDL_sysjoystick.c:387) ==12393== by 0x4C531F9: SDL_JoystickInit (SDL_joystick.c:49) ==12393== by 0x4C2640D: SDL_InitSubSystem (SDL.c:121) ==12393== by 0x4C264AE: SDL_Init (SDL.c:162) ==12393== by 0x4006B4: main (in /home/tdz/rpmbuild/BUILD/SDL-1.2.13.isjoystick.testcase) ==12393== Uninitialised value was created by a stack allocation ==12393== at 0x4C76A4F: SDL_SYS_JoystickInit (SDL_sysjoystick.c:397) Expected results: No warning. Additional info: The problem is located in the functions EV_IsJoystick and EV_ConfigJoystick. Some arrays are passed to ioctl and then initialized by the joystick driver. SDL does not fill these arrays with 0 before using them, but depends on the driver to set enough bytes of those arrays to some valid state.
Created attachment 343236 [details] Patch
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle. Changing version to '11'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
This message is a reminder that Fedora 11 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 11. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '11'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 11's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 11 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.