From 763e31a8d3e3def53fc22828e75df54127e9487e Mon Sep 17 00:00:00 2001 From: Frank Plowman Date: Fri, 26 Jan 2024 09:13:13 +0000 Subject: [PATCH] lavc/vvc: Clamp shift RHS Resolves the following undefined behavior sanitiser error: runtime error: shift exponent 32 is too large for 32-bit type 'int' Signed-off-by: Frank Plowman Signed-off-by: James Almer --- libavcodec/vvc/vvc_intra_template.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vvc/vvc_intra_template.c b/libavcodec/vvc/vvc_intra_template.c index 9fb47549d5..a078885266 100644 --- a/libavcodec/vvc/vvc_intra_template.c +++ b/libavcodec/vvc/vvc_intra_template.c @@ -969,7 +969,7 @@ static void FUNC(pred_angular_h)(uint8_t *_src, const uint8_t *_top, const uint8 int pos = (1 + ref_idx) * intra_pred_angle; int wt; if (need_pdpc) - wt = (32 >> ((y * 2) >> nscale)); + wt = (32 >> FFMIN(31, (y * 2) >> nscale)); for (int x = 0; x < w; x++) { const int idx = (pos >> 5) + ref_idx;