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asahi: fix overread with samplers

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Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28483>
This commit is contained in:
Alyssa Rosenzweig
2024-02-18 08:43:07 -04:00
committed by Marge Bot
parent 007a440a33
commit e952189443
1 changed files with 4 additions and 3 deletions
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src/asahi/lib/decode.c
+4 -3
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@@ -423,10 +423,11 @@ agxdecode_usc(const uint8_t *map, UNUSED uint64_t *link, UNUSED bool verbose,
agx_unpack(agxdecode_dump_stream, map, USC_SAMPLER, temp);
DUMP_UNPACKED(USC_SAMPLER, temp, "Sampler state\n");
uint8_t buf[(AGX_SAMPLER_LENGTH + AGX_BORDER_LENGTH) * temp.count];
uint8_t *samp = buf;
size_t stride =
AGX_SAMPLER_LENGTH + (extended_samplers ? AGX_BORDER_LENGTH : 0);
uint8_t *samp = alloca(stride * temp.count);
agxdecode_fetch_gpu_array(temp.buffer, buf);
agxdecode_fetch_gpu_mem(temp.buffer, stride * temp.count, samp);
for (unsigned i = 0; i < temp.count; ++i) {
DUMP_CL(SAMPLER, samp, "Sampler");