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Kernel: verify that loaded elfs are executable

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Bananymous
2023-06-05 19:15:32 +03:00
parent 73c11c3d29
commit 08a806e75d
1 changed files with 12 additions and 0 deletions
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12
kernel/kernel/Process.cpp
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@@ -53,6 +53,12 @@ namespace Kernel
delete elf;
return BAN::Error::from_errno(EINVAL);
}
if (elf->file_header_native().e_type != LibELF::ET_EXEC)
{
derrorln("Not an executable");
delete elf;
return BAN::Error::from_errno(EINVAL);
}
auto* process = create_process();
MUST(process->m_working_directory.push_back('/'));
@@ -212,6 +218,12 @@ namespace Kernel
delete elf;
return BAN::Error::from_errno(EINVAL);
}
if (elf->file_header_native().e_type != LibELF::ET_EXEC)
{
derrorln("Not an executable");
delete elf;
return BAN::Error::from_errno(EINVAL);
}
LockGuard lock_guard(m_lock);