Claude Code v2.1.223 ·
Sandbox now fails loudly when /proc/self/exe cannot be opened
On Linux, if the sandbox can't set itself up it now stops instead of silently running half-protected.
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
SandboxArea: what it touches
Bug FixesKind: in v2.1.223,
Bug FixesSection of the release
What
The Linux seccomp helper used to log an error and return undefined, letting startup continue with the sandbox half-configured. It now throws.
Details
- The error is still reported, then constructed and thrown so the caller cannot proceed.
- The message text was rewritten to name the embedded apply-seccomp helper.
- Only on the Linux seccomp sandbox path.
Evidence
sandbox: failed to open /proc/self/exe
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.223 →
