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libstore: Make our sandbox pivot_root directory accessible to ourself (backport #11684) #12193

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libstore: Make our sandbox pivot_root directory accessible to ourself (backport #11684) #12193

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2 changes: 1 addition & 1 deletion src/libstore/build/local-derivation-goal.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1963,7 +1963,7 @@ void LocalDerivationGoal::runChild()
if (chdir(chrootRootDir.c_str()) == -1)
throw SysError("cannot change directory to '%1%'", chrootRootDir);

if (mkdir("real-root", 0) == -1)
if (mkdir("real-root", 0500) == -1)
throw SysError("cannot create real-root directory");

if (pivot_root(".", "real-root") == -1)
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