Segmentation fault in WASM trampoline (v1.3.10, Linux x86_64)

[WayneKennedy]

Crash Report

Bun has crashed with a segmentation fault during execution.

Bun version: 1.3.10 (commit 1423d3c)
Platform: Linux x86_64_baseline
OS: Linux 6.8.0-100-generic

Error

panic(main thread): Segmentation fault at address 0x7FFC92B6B055
oh no: Bun has crashed. This indicates a bug in Bun, not your code.
Illegal instruction (core dumped)

Crash Report Link

https://bun.report/1.3.10/B_11423d3cmgkgEuhogC4oi5wE+ypRslpuiEslpuiEslpuiEslpuiEslpuiE___________w9pjiEw9pjiEA24//B36nlptD

Stack Trace

The crash originates in WebAssembly execution with repeated calls to wasm_trampoline_wasm_ipint_call_wide32, showing:

• Multiple consecutive WASM trampoline calls
• 11 frames of unknown/JavaScript code execution
• Termination in llint_op_call_ignore_result (low-level interpreter)

How to reproduce

To be updated with specific reproduction steps.

[github-actions]

Found 3 possible duplicate issues:

1. Claude Code Segmentation Fault with Bun v1.3.10 #27333
2. Linux x64 WASM wasm_trampoline_wasm_ipint_call_wide32 crash in JSC, potentially stack overflow in WebAssembly while using PGlite #17841
3. Segfault during concurrent child_process.spawn calls (Claude Code / standalone executable) #27330

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🤖 Generated with Claude Code

[Jarred-Sumner]

Fixed in #26922