From: Ilia Mirkin Date: Wed, 19 Oct 2016 04:05:26 +0000 (-0400) Subject: nv50,nvc0: avoid reading out of bounds when getting bogus so info X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=313fba5ee1de9416930e45da8aff63a24763940b;p=mesa.git nv50,nvc0: avoid reading out of bounds when getting bogus so info The state tracker tries to attach the info to the wrong shader. This is easy enough to protect against. Signed-off-by: Ilia Mirkin Reviewed-by: Samuel Pitoiset Cc: 12.0 13.0 --- diff --git a/src/gallium/drivers/nouveau/nv50/nv50_program.c b/src/gallium/drivers/nouveau/nv50/nv50_program.c index 2b66877c679..ea5febdf3ae 100644 --- a/src/gallium/drivers/nouveau/nv50/nv50_program.c +++ b/src/gallium/drivers/nouveau/nv50/nv50_program.c @@ -307,6 +307,9 @@ nv50_program_create_strmout_state(const struct nv50_ir_prog_info *info, const unsigned r = pso->output[i].register_index; b = pso->output[i].output_buffer; + if (r >= info->numOutputs) + continue; + for (c = 0; c < pso->output[i].num_components; ++c) so->map[base[b] + p + c] = info->out[r].slot[s + c]; } diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_program.c b/src/gallium/drivers/nouveau/nvc0/nvc0_program.c index f52cbd29819..a4a164f15f8 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_program.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_program.c @@ -509,11 +509,14 @@ nvc0_program_create_tfb_state(const struct nv50_ir_prog_info *info, for (i = 0; i < pso->num_outputs; ++i) { unsigned s = pso->output[i].start_component; unsigned p = pso->output[i].dst_offset; + const unsigned r = pso->output[i].register_index; b = pso->output[i].output_buffer; + if (r >= info->numOutputs) + continue; + for (c = 0; c < pso->output[i].num_components; ++c) - tfb->varying_index[b][p++] = - info->out[pso->output[i].register_index].slot[s + c]; + tfb->varying_index[b][p++] = info->out[r].slot[s + c]; tfb->varying_count[b] = MAX2(tfb->varying_count[b], p); tfb->stream[b] = pso->output[i].stream;