diff options
Diffstat (limited to 'libgamma_dummy_crtc_initialise.c')
| -rw-r--r-- | libgamma_dummy_crtc_initialise.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/libgamma_dummy_crtc_initialise.c b/libgamma_dummy_crtc_initialise.c index a3f9c87..7b36b86 100644 --- a/libgamma_dummy_crtc_initialise.c +++ b/libgamma_dummy_crtc_initialise.c @@ -35,15 +35,32 @@ libgamma_dummy_crtc_initialise(struct libgamma_crtc_state *restrict this, else stop_size = (size_t)data->info.gamma_depth / 8; - data->gamma_red = malloc(data->info.red_gamma_size * stop_size); - if (!data->gamma_red) - goto fail; - data->gamma_green = malloc(data->info.green_gamma_size * stop_size); - if (!data->gamma_green) - goto fail; - data->gamma_blue = malloc(data->info.blue_gamma_size * stop_size); - if (!data->gamma_blue) + data->gamma_red = NULL; + data->gamma_green = NULL; + data->gamma_blue = NULL; + + if (data->info.red_gamma_size > SIZE_MAX / stop_size || + data->info.green_gamma_size > SIZE_MAX / stop_size || + data->info.blue_gamma_size > SIZE_MAX / stop_size) { + errno = ENOMEM; goto fail; + } + + if (data->info.red_gamma_size) { + data->gamma_red = malloc(data->info.red_gamma_size * stop_size); + if (!data->gamma_red) + goto fail; + } + if (data->info.green_gamma_size) { + data->gamma_green = malloc(data->info.green_gamma_size * stop_size); + if (!data->gamma_green) + goto fail; + } + if (data->info.blue_gamma_size) { + data->gamma_blue = malloc(data->info.blue_gamma_size * stop_size); + if (!data->gamma_blue) + goto fail; + } return libgamma_dummy_internal_crtc_restore_forced(data); |