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Kernel: Add a size argument to validate_read_from_kernel

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This commit is contained in:
Conrad Pankoff 2019-12-24 11:01:23 +11:00 • committed by Andreas Kling
parent a3590ca602
commit 3aaeff483b
4 changed files with 7 additions and 7 deletions
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4
Kernel/Thread.cpp
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@ -708,7 +708,7 @@ String Thread::backtrace_impl() const
StringBuilder builder;
Vector<RecognizedSymbol, 64> recognized_symbols;
recognized_symbols.append({ tss().eip, ksymbolicate(tss().eip) });
for (u32* stack_ptr = (u32*)frame_ptr(); process.validate_read_from_kernel(VirtualAddress((u32)stack_ptr)); stack_ptr = (u32*)*stack_ptr) {
for (u32* stack_ptr = (u32*)frame_ptr(); process.validate_read_from_kernel(VirtualAddress((u32)stack_ptr), sizeof(void*) * 2); stack_ptr = (u32*)*stack_ptr) {
u32 retaddr = stack_ptr[1];
recognized_symbols.append({ retaddr, ksymbolicate(retaddr) });
}
@ -738,7 +738,7 @@ Vector<u32> Thread::raw_backtrace(u32 ebp) const
ProcessPagingScope paging_scope(process);
Vector<u32> backtrace;
backtrace.append(ebp);
for (u32* stack_ptr = (u32*)ebp; process.validate_read_from_kernel(VirtualAddress((u32)stack_ptr)); stack_ptr = (u32*)*stack_ptr) {
for (u32* stack_ptr = (u32*)ebp; process.validate_read_from_kernel(VirtualAddress((u32)stack_ptr), sizeof(void*) * 2); stack_ptr = (u32*)*stack_ptr) {
u32 retaddr = stack_ptr[1];
backtrace.append(retaddr);
}