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Kernel: Fix off-by-one error in Processor::write_raw_gdt_entry

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Gunnar Beutner 2021-06-25 23:04:00 +02:00 • committed by Andreas Kling
parent f630299d49
commit e52051903b
1 changed files with 1 additions and 1 deletions
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2
Kernel/Arch/x86/common/Processor.cpp
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@ -355,7 +355,7 @@ void Processor::write_raw_gdt_entry(u16 selector, u32 low, u32 high)
u16 i = (selector & 0xfffc) >> 3;
u32 prev_gdt_length = m_gdt_length;
if (i > m_gdt_length) {
if (i >= m_gdt_length) {
m_gdt_length = i + 1;
VERIFY(m_gdt_length <= sizeof(m_gdt) / sizeof(m_gdt[0]));
m_gdtr.limit = (m_gdt_length + 1) * 8 - 1;