Rust-GPU / Rust-GPU/rust-gpu

[Migrated] Incorrect index validation

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Rust
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Description

Issue automatically imported from old repo: https://github.com/EmbarkStudios/rust-gpu/issues/1093

Originally creatd by atynagano on 2023-09-21T11:51:47Z


https://github.com/EmbarkStudios/rust-gpu/blob/e87c324bfda6bea144fe2635586281c4ef144f0d/crates/spirv-std/src/byte_addressable_buffer.rs#L73-L78

if byte_index + mem::size_of::<T>() as u32 > (mem::size_of::<u32> * self.data.len()) as u32

Isn't the right-hand side multiplied by 4 because data is &[u32]?

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Research direction

Start in crates/spirv-std/src/byte_addressable_buffer.rs at lines 73-78 and inspect how the &[u32] data length is converted to a byte bound. Confirm whether the right-hand side accounts for the size of each u32; done means the index validation uses the correct byte extent and the existing behavior is checked.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
computer-graphics
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
35/100

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