fix(builtin): fix node patches subprocess sandbox propogation#2017
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gregmagolan
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Two fixes here.
Set --preserve-symlinks --preserve-symlinks-main in the generated _node_bin/node which comes from ${process.env.NODE_REPOSITORY_ARGS}. This will prevent the --require /path/to/node_patches.js from being resolved to its location outside of the sandbox.
However, if preserve_symlinks=false, which is still an option, the 2nd fix is to honour the value of NP_SUBPROCESS_NODE_DIR when running node_patches.js for the subprocess. Even if node_patches.js is resolved to outside of the sandbox for the subprocess and run from there, it will still look for _node_bin/node within the sandbox.
alexeagle
approved these changes
Jul 9, 2020
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| if [[ -n "${STDOUT_CAPTURE}" ]] && [[ -n "${STDERR_CAPTURE}" ]]; then | ||
| "${node}" "${LAUNCHER_NODE_OPTIONS[@]:-}" "${USER_NODE_OPTIONS[@]:-}" "${MAIN}" ${ARGS[@]+"${ARGS[@]}"} <&0 >$STDOUT_CAPTURE 2>$STDERR_CAPTURE & | ||
| "${node}" ${LAUNCHER_NODE_OPTIONS[@]+"${LAUNCHER_NODE_OPTIONS[@]}"} ${USER_NODE_OPTIONS[@]+"${USER_NODE_OPTIONS[@]}"} "${MAIN}" ${ARGS[@]+"${ARGS[@]}"} <&0 >$STDOUT_CAPTURE 2>$STDERR_CAPTURE & |
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this block has gotten pretty crazy, no suggestion for simplifying though
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I thought that as well. Didn't want to touch it yet.
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Two fixes here.
Set
--preserve-symlinks --preserve-symlinks-mainin the generated_node_bin/nodewhich comes from${process.env.NODE_REPOSITORY_ARGS}. This will prevent the--require /path/to/node_patches.jsfrom being resolved to its location outside of the sandbox.However, if
preserve_symlinks=false, which is still an option, the 2nd fix is to honour the value ofNP_SUBPROCESS_NODE_DIRwhen runningnode_patches.jsfor the subprocess. Even ifnode_patches.jsis resolved to outside of the sandbox for the subprocess and runs from there, it will still look for_node_bin/nodewithin the sandbox.The two fixes will prevent the
process.argv[0]&&process.execPathfrom being set to an invalid path outside of the sandbox such as/private/var/tmp/_bazel_gregmagolan/85775d8edd310fbe8df608eb90377ae5/external/build_bazel_rules_nodejs/internal/node/_node_bin/nodeininternal/node/node_patches.js(which comes frompackages/node-patches/src/subprocess.ts):if this does happen then the failure mode is
/private/var/tmp/_bazel_gregmagolan/85775d8edd310fbe8df608eb90377ae5/external/build_bazel_rules_nodejs/internal/node/_node_bin/node ENOENT:PR Checklist
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