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Kernel: Trying to sys$link() a directory should fail with EPERM
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2 changed files with 5 additions and 0 deletions
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@ -521,6 +521,9 @@ KResult VFS::link(StringView old_path, StringView new_path, Custody& base)
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if (!parent_inode.metadata().may_write(current->process()))
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if (!parent_inode.metadata().may_write(current->process()))
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return KResult(-EACCES);
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return KResult(-EACCES);
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if (old_inode.is_directory())
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return KResult(-EPERM);
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return parent_inode.add_child(old_inode.identifier(), FileSystemPath(new_path).basename(), old_inode.mode());
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return parent_inode.add_child(old_inode.identifier(), FileSystemPath(new_path).basename(), old_inode.mode());
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}
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}
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@ -255,5 +255,7 @@ int main(int, char**)
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test_eoverflow();
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test_eoverflow();
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test_rmdir_while_inside_dir();
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test_rmdir_while_inside_dir();
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EXPECT_ERROR_2(EPERM, link, "/", "/home/anon/lolroot");
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return 0;
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return 0;
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}
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}
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