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Unbreak ksym loading and make reading /proc/PID/stack not crash.

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This commit is contained in:
Andreas Kling 2019-01-01 02:20:01 +01:00
parent 683185e4aa
commit 4b6a8f8a08
7 changed files with 7 additions and 10 deletions
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2
Kernel/ProcFileSystem.cpp
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@ -110,7 +110,7 @@ ByteBuffer procfs$pid_stack(Process& process)
Vector<RecognizedSymbol> recognizedSymbols;
if (auto* eipKsym = ksymbolicate(process.tss().eip))
recognizedSymbols.append({ process.tss().eip, eipKsym });
for (dword* stackPtr = (dword*)process.framePtr(); process.isValidAddressForKernel(LinearAddress((dword)stackPtr)); stackPtr = (dword*)*stackPtr) {
for (dword* stackPtr = (dword*)process.framePtr(); process.validate_read_from_kernel(LinearAddress((dword)stackPtr)); stackPtr = (dword*)*stackPtr) {
dword retaddr = stackPtr[1];
if (auto* ksym = ksymbolicate(retaddr))
recognizedSymbols.append({ retaddr, ksym });