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Merge pull request #36400 from azat/dyn-linker-vars

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Add more harmful variables for OSX
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Sergei Trifonov 2022-04-21 00:02:51 +02:00 committed by GitHub
commit 2f38e7bc5c
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3 changed files with 36 additions and 3 deletions
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19
programs/main.cpp
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@ -334,11 +334,24 @@ struct Checker
#endif
;
/// NOTE: We will migrate to full static linking or our own dynamic loader to make this code obsolete.
void checkHarmfulEnvironmentVariables()
{
/// The list is a selection from "man ld-linux". And one variable that is Mac OS X specific.
/// NOTE: We will migrate to full static linking or our own dynamic loader to make this code obsolete.
for (const auto * var : {"LD_PRELOAD", "LD_LIBRARY_PATH", "LD_ORIGIN_PATH", "LD_AUDIT", "LD_DYNAMIC_WEAK", "DYLD_INSERT_LIBRARIES"})
std::initializer_list<const char *> harmful_env_variables = {
/// The list is a selection from "man ld-linux".
"LD_PRELOAD",
"LD_LIBRARY_PATH",
"LD_ORIGIN_PATH",
"LD_AUDIT",
"LD_DYNAMIC_WEAK",
/// The list is a selection from "man dyld" (osx).
"DYLD_LIBRARY_PATH",
"DYLD_FALLBACK_LIBRARY_PATH",
"DYLD_VERSIONED_LIBRARY_PATH",
"DYLD_INSERT_LIBRARIES",
};
for (const auto * var : harmful_env_variables)
{
if (const char * value = getenv(var); value && value[0])
{

2
tests/queries/0_stateless/02280_dynamic_linker_env.reference Normal file
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@ -0,0 +1,2 @@
1
1

18
tests/queries/0_stateless/02280_dynamic_linker_env.sh Executable file
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@ -0,0 +1,18 @@
#!/usr/bin/env bash
CUR_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
# shellcheck source=../shell_config.sh
. "$CUR_DIR"/../shell_config.sh
static=$($CLICKHOUSE_LOCAL -q "SELECT value IN ('ON', '1') FROM system.build_options WHERE name = 'STATIC'")
clickhouse-local -q 'select 1'
if [ "$static" -eq 1 ]; then
# "grep -c" will also gives "1"
LD_LIBRARY_PATH=/ clickhouse-local -q 'select 1' |& grep -x -F -c 'Environment variable LD_LIBRARY_PATH is set to /. It can compromise security.'
else
# works because it does not uses main.cpp entrypoint
# (due to shared build is always splitted, and non-splitted will have lots of ODR issues)
LD_LIBRARY_PATH=/ clickhouse-local -q 'select 1'
fi