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Code Issues Releases Activity

kern: fix KCodeMemory SVCs when Owner process != Generator process

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This commit is contained in:
Michael Scire 2020-09-17 08:25:27 -07:00 committed by SciresM
parent 9b65daf439
commit dbe59fd041
2 changed files with 4 additions and 4 deletions
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4
libraries/libmesosphere/source/kern_k_code_memory.cpp
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@ -133,7 +133,7 @@ namespace ams::kern {
}
/* Map the memory. */
R_TRY(GetCurrentProcess().GetPageTable().MapPageGroup(address, GetReference(this->page_group), KMemoryState_GeneratedCode, k_perm));
R_TRY(this->owner->GetPageTable().MapPageGroup(address, GetReference(this->page_group), KMemoryState_GeneratedCode, k_perm));
/* Mark ourselves as mapped. */
this->is_owner_mapped = true;
@ -151,7 +151,7 @@ namespace ams::kern {
KScopedLightLock lk(this->lock);
/* Unmap the memory. */
R_TRY(GetCurrentProcess().GetPageTable().UnmapPageGroup(address, GetReference(this->page_group), KMemoryState_GeneratedCode));
R_TRY(this->owner->GetPageTable().UnmapPageGroup(address, GetReference(this->page_group), KMemoryState_GeneratedCode));
/* Mark ourselves as unmapped. */
MESOSPHERE_ASSERT(this->is_owner_mapped);

4
libraries/libmesosphere/source/svc/kern_svc_code_memory.cpp
View file

@ -110,7 +110,7 @@ namespace ams::kern::svc {
case ams::svc::CodeMemoryOperation_MapToOwner:
{
/* Check that the region is in range. */
R_UNLESS(GetCurrentProcess().GetPageTable().CanContain(address, size, KMemoryState_GeneratedCode), svc::ResultInvalidMemoryRegion());
R_UNLESS(code_mem->GetOwner()->GetPageTable().CanContain(address, size, KMemoryState_GeneratedCode), svc::ResultInvalidMemoryRegion());
/* Check the memory permission. */
R_UNLESS(IsValidMapToOwnerCodeMemoryPermission(perm), svc::ResultInvalidNewMemoryPermission());
@ -122,7 +122,7 @@ namespace ams::kern::svc {
case ams::svc::CodeMemoryOperation_UnmapFromOwner:
{
/* Check that the region is in range. */
R_UNLESS(GetCurrentProcess().GetPageTable().CanContain(address, size, KMemoryState_GeneratedCode), svc::ResultInvalidMemoryRegion());
R_UNLESS(code_mem->GetOwner()->GetPageTable().CanContain(address, size, KMemoryState_GeneratedCode), svc::ResultInvalidMemoryRegion());
/* Check the memory permission. */
R_UNLESS(IsValidUnmapFromOwnerCodeMemoryPermission(perm), svc::ResultInvalidNewMemoryPermission());