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AK+Kernel: OOM-harden most parts of Trie

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The only part of Unveil that can't handle OOM gracefully is the
String::formatted() use in the node metadata.
This commit is contained in:
Ali Mohammad Pur 2022-02-14 16:49:53 +03:30 • committed by Idan Horowitz
parent 80e6198563
commit a1cb2c371a
9 changed files with 145 additions and 99 deletions
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6
Kernel/ProcessSpecificExposed.cpp
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@ -145,9 +145,9 @@ ErrorOr<void> Process::procfs_get_pledge_stats(KBufferBuilder& builder) const
ErrorOr<void> Process::procfs_get_unveil_stats(KBufferBuilder& builder) const
{
JsonArraySerializer array { builder };
for (auto const& unveiled_path : unveiled_paths()) {
TRY(unveiled_paths().for_each_node_in_tree_order([&](auto const& unveiled_path) {
if (!unveiled_path.was_explicitly_unveiled())
continue;
return;
auto obj = array.add_object();
obj.add("path", unveiled_path.path());
StringBuilder permissions_builder;
@ -162,7 +162,7 @@ ErrorOr<void> Process::procfs_get_unveil_stats(KBufferBuilder& builder) const
if (unveiled_path.permissions() & UnveilAccess::Browse)
permissions_builder.append('b');
obj.add("permissions", permissions_builder.string_view());
}
}));
array.finish();
return {};
}