From: Mauro Carvalho Chehab Date: Tue, 28 Apr 2015 13:35:13 +0000 (-0300) Subject: [media] ivtv: avoid going past input/audio array X-Git-Tag: firefly_0821_release~176^2~795^2~972 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=09290cc885937cab3b2d60a6d48fe3d2d3e04061;p=firefly-linux-kernel-4.4.55.git [media] ivtv: avoid going past input/audio array As reported by smatch: drivers/media/pci/ivtv/ivtv-driver.c:832 ivtv_init_struct2() error: buffer overflow 'itv->card->video_inputs' 6 <= 6 That happens because nof_inputs and nof_audio_inputs can be initialized as IVTV_CARD_MAX_VIDEO_INPUTS, instead of IVTV_CARD_MAX_VIDEO_INPUTS - 1. Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c index c2e60b4f292d..8616fa8193bc 100644 --- a/drivers/media/pci/ivtv/ivtv-driver.c +++ b/drivers/media/pci/ivtv/ivtv-driver.c @@ -805,11 +805,11 @@ static void ivtv_init_struct2(struct ivtv *itv) { int i; - for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS; i++) + for (i = 0; i < IVTV_CARD_MAX_VIDEO_INPUTS - 1; i++) if (itv->card->video_inputs[i].video_type == 0) break; itv->nof_inputs = i; - for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS; i++) + for (i = 0; i < IVTV_CARD_MAX_AUDIO_INPUTS - 1; i++) if (itv->card->audio_inputs[i].audio_type == 0) break; itv->nof_audio_inputs = i;