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fix: crash when V8 optimises a call to a node:wasi import - #53268
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jkleinsc merged 1 commit intoAug 28, 2026
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Backports nodejs/node#63679. WASI::WasiFunction::SetFunction passed the address of a stack-local v8::CFunction to FunctionTemplate::New. Since https://chromium-review.googlesource.com/c/v8/v8/+/7828135 V8 keeps that pointer rather than copying the address and type info out of it, so once TurboFan optimised a call to any wasiImport function it read a dead stack slot. Upstream made the CFunction static on main but marked the change dont-land-on-v24.x/v26.x because their bundled V8 predates the lifetime change; ours does not, so carry it as a patch. The node_external_reference.h half of the upstream commit is already part of electron_enable_node_startup_snapshot_generation_in_chromium_s_v8.patch. Co-authored-by: Sam Attard <sattard@anthropic.com>
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Backport of #53262
See that PR for details.
Notes: Fixed a crash when calling
node:wasifunctions in optimized code.