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kern: reject shadow stack accesses in syscalls

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This commit is contained in:
Alula
2026-09-15 17:04:18 +02:00
parent 7e58f5fbae
commit dbfe192b2f
15 changed files with 60 additions and 29 deletions
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8
libraries/libmesosphere/source/kern_k_debug_base.cpp
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@@ -100,8 +100,8 @@ namespace ams::kern {
KProcessPageTable &target_pt = process->GetPageTable();
/* Verify that the regions are in range. */
R_UNLESS(target_pt.Contains(address, size), svc::ResultInvalidCurrentMemory());
R_UNLESS(debugger_pt.Contains(buffer, size), svc::ResultInvalidCurrentMemory());
R_UNLESS(target_pt.Contains(address, size), svc::ResultInvalidCurrentMemory());
R_UNLESS(debugger_pt.IsSafeUserPointer(buffer, size), svc::ResultInvalidCurrentMemory());
/* Iterate over the target process's memory blocks. */
KProcessAddress cur_address = address;
@@ -166,8 +166,8 @@ namespace ams::kern {
KProcessPageTable &target_pt = process->GetPageTable();
/* Verify that the regions are in range. */
R_UNLESS(target_pt.Contains(address, size), svc::ResultInvalidCurrentMemory());
R_UNLESS(debugger_pt.Contains(buffer, size), svc::ResultInvalidCurrentMemory());
R_UNLESS(target_pt.Contains(address, size), svc::ResultInvalidCurrentMemory());
R_UNLESS(debugger_pt.IsSafeUserPointer(buffer, size), svc::ResultInvalidCurrentMemory());
/* Iterate over the target process's memory blocks. */
KProcessAddress cur_address = address;