setup-root: Fix overlay permissions#294
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cgwalters merged 1 commit intoMay 15, 2026
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The overlayfs merged view inherits its root permissions from the upperdir; creating it as 0700 breaks unprivileged processes accessing it. This mirrors what systemd does in volatile-root.c and nspawn-mount.c. Fixes: composefs#287 Assisted-by: OpenCode (claude-sonnet-4-6@default) Signed-off-by: Colin Walters <walters@verbum.org>
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May 15, 2026
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The overlayfs merged view inherits its root permissions from the upperdir; creating it as 0700 breaks unprivileged processes accessing it.
This mirrors what systemd does in volatile-root.c and nspawn-mount.c.
Fixes: #287
Assisted-by: OpenCode (claude-sonnet-4-6@default)