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Kernel: Trying to sys$link() a directory should fail with EPERM

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This commit is contained in:
Andreas Kling 2020-01-15 22:10:38 +01:00
parent e91f03cb39
commit d4d17ce423
Notes: sideshowbarker 2024-07-19 10:02:27 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/d4d17ce4235
2 changed files with 5 additions and 0 deletions
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3
Kernel/FileSystem/VirtualFileSystem.cpp
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@ -521,6 +521,9 @@ KResult VFS::link(StringView old_path, StringView new_path, Custody& base)
if (!parent_inode.metadata().may_write(current->process()))
return KResult(-EACCES);
if (old_inode.is_directory())
return KResult(-EPERM);
return parent_inode.add_child(old_inode.identifier(), FileSystemPath(new_path).basename(), old_inode.mode());
}

2
Userland/test_io.cpp
View File

@ -255,5 +255,7 @@ int main(int, char**)
test_eoverflow();
test_rmdir_while_inside_dir();
EXPECT_ERROR_2(EPERM, link, "/", "/home/anon/lolroot");
return 0;
}