Stream: git-wasmtime

Topic: wasmtime / Issue #2288 Cranelift: support RELRO

Wasmtime GitHub notifications bot (Oct 12 2020 at 18:40):

bjorn3 opened Issue #2288:

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Feature

RELRO is a security feature that makes as much sections as possible readonly after performing dynamic relocations.
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Cranelift/Wasmtime? -->

Benefit

Improved security.
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Implementation

Cranelift will need to get a PIC mode that doesn't use a PLT, but only a GOT. Then cranelift-object will need to be changed to use .data.rel.ro instead of .data for relocatable readonly data objects. There may be other steps necessary. This should all be optional.

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Alternatives

Not implementing this and thus having a bit less security.
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Last updated: Dec 23 2024 at 13:07 UTC