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[Crash] malloc error: pointer being freed was not allocated on macOS 15 (ARM-64) #13072
Description
Description
opencode crashes immediately upon launch (e.g., opencode .) on macOS 15.0.1. The terminal outputs a malloc error, and the system crash log points to an invalid memory deallocation during thread exit.
opencode(7914,0x16fecf000) malloc: *** error for object 0x10841f300: pointer being freed was not allocated
Plugins
oh-my-opencode、superpowers
OpenCode version
1.1.56
Steps to reproduce
Open iTerm2 or any terminal on macOS Sequoia.
Navigate to any project directory.
Run opencode .
The process terminates immediately with a malloc error.
Screenshot and/or share link
Thread 22 Crashed:: Wasm Worklist Helper Thread
0 libsystem_c.dylib __abort + 168
1 libsystem_c.dylib abort + 140
2 libsystem_malloc.dylib malloc_vreport + 896
3 libsystem_malloc.dylib malloc_report + 64
4 libsystem_malloc.dylib find_zone_and_free + 528
5 libsystem_pthread.dylib _pthread_tsd_cleanup + 552
6 libsystem_pthread.dylib _pthread_exit + 84
Operating System
macOS 15.0.1 (24A348)
Terminal
iTerm2
Activity
github-actions commentedon Feb 11, 2026
This issue appears to be a duplicate of #13064.
Both report the same malloc error on macOS 15.x:
pointer being freed was not allocatedThe key difference is timing (#13064 crashes after ~10 seconds vs #13072 crashes immediately), but both stem from the same underlying memory corruption issue.
Please check #13064 for any existing workarounds or updates. Consider consolidating discussions there to avoid duplicate efforts.
bestkxt commentedon Feb 11, 2026
私も同じ問題を抱えています。どうすればいいのか教えていただけますか？ opencode-ai v1.1.53に戻しましたが、まだ動きません。
Y4tacker commentedon Feb 11, 2026
the same as me😂
Lxj96 commentedon Feb 11, 2026
HerculeLiu commentedon Feb 11, 2026
I got the same issue, either iTerm2 or Terminal
opencode --version : 1.1.56
ProductName: macOS
ProductVersion: 15.0.1
I tried reinstall 1.1.53, but it does not help anything
R44VC0RP commentedon Feb 11, 2026
Duplicate of #13064. Same malloc error on macOS 15 ARM-64 with v1.1.56.
This looks like a Bun 1.3.8 + macOS 15 compatibility issue with WASM thread cleanup. The crash happens in the "Wasm Worklist Helper Thread" during
_pthread_exit, which is likely related to web-tree-sitter (used by the bash tool for command parsing).We'll investigate the root cause in #13064.