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authorMichel Dänzer <michel.daenzer@amd.com>2016-12-16 18:05:58 +0900
committerMichel Dänzer <michel@daenzer.net>2016-12-19 17:50:08 +0900
commit3d661a12be5be95da929b19cf4b5976b3c3fb8e9 (patch)
tree1161cb644d69652acb2583e7a714da1e962c763f
parente2610bf1658971adf44f8558f652ae1a25c9a255 (diff)
cso: Don't restore nr_samplers in cso_restore_fragment_samplers
If info->nr_samplers > ctx->nr_fragment_samplers_saved, the assignment would prevent cso_single_sampler_done from unbinding the no longer used samplers from the driver, which could result in use-after-free. This is probably unlikely to happen in practice though. Cc: "12.0 13.0" <mesa-stable@lists.freedesktop.org> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
-rw-r--r--src/gallium/auxiliary/cso_cache/cso_context.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/cso_cache/cso_context.c b/src/gallium/auxiliary/cso_cache/cso_context.c
index 127e0711c2..2ee87f9184 100644
--- a/src/gallium/auxiliary/cso_cache/cso_context.c
+++ b/src/gallium/auxiliary/cso_cache/cso_context.c
@@ -1275,7 +1275,6 @@ cso_restore_fragment_samplers(struct cso_context *ctx)
{
struct sampler_info *info = &ctx->samplers[PIPE_SHADER_FRAGMENT];
- info->nr_samplers = ctx->nr_fragment_samplers_saved;
memcpy(info->samplers, ctx->fragment_samplers_saved,
sizeof(info->samplers));
cso_single_sampler_done(ctx, PIPE_SHADER_FRAGMENT);