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SDL_EVDEV_kbd_init: uninitialized data for ioctl (Bug 4530)

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Only two chars are used but the full prototype is:

int tioclinux(struct tty_struct *tty, unsigned long arg)

==5010== Syscall param ioctl(TIOCLINUX) points to uninitialised byte(s)
==5010==    at 0x53E73C7: ioctl (syscall-template.S:78)
==5010==    by 0x4A887DA: SDL_EVDEV_Init (SDL_evdev.c:163)
==5010==    by 0x4A7D157: KMSDRM_VideoInit (SDL_kmsdrmvideo.c:509)
==5010==    by 0x497D959: SDL_VideoInit_REAL (SDL_video.c:529)
==5010==    by 0x487ACBC: SDL_InitSubSystem_REAL (SDL.c:171)
==5010==    by 0x487B052: SDL_Init_REAL (SDL.c:256)
==5010==    by 0x488F7D6: SDL_Init (SDL_dynapi_procs.h:85)
This commit is contained in:
Sylvain Becker 2019-03-12 14:20:37 +01:00
parent b28e956b8c
commit 052b4f2969
1 changed files with 1 additions and 1 deletions
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2
src/core/linux/SDL_evdev_kbd.c
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@ -345,7 +345,7 @@ SDL_EVDEV_kbd_init(void)
SDL_EVDEV_keyboard_state *kbd;
int i;
char flag_state;
char shift_state[2] = {TIOCL_GETSHIFTSTATE, 0};
char shift_state[ sizeof (long) ] = {TIOCL_GETSHIFTSTATE, 0};
kbd = (SDL_EVDEV_keyboard_state *)SDL_calloc(1, sizeof(*kbd));
if (!kbd) {