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kern: fix UpdateLock perms for ipc

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This commit is contained in:
Michael Scire 2020-07-12 22:22:54 -07:00
parent bc767742f7
commit 095fc6b996
1 changed files with 3 additions and 1 deletions
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4
libraries/libmesosphere/source/kern_k_page_table_base.cpp
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@ -2227,7 +2227,9 @@ namespace ams::kern {
/* If anything was mapped, ipc-lock the pages. */ /* If anything was mapped, ipc-lock the pages. */
if (src_map_start < src_map_end) { if (src_map_start < src_map_end) {
src_page_table.memory_block_manager.UpdateLock(std::addressof(allocator), src_map_start, (src_map_end - src_map_start) / PageSize, &KMemoryBlock::LockForIpc, KMemoryPermission_None); /* Get the source permission. */
const auto src_perm = static_cast<KMemoryPermission>((test_perm == KMemoryPermission_UserReadWrite) ? KMemoryPermission_KernelReadWrite | KMemoryPermission_NotMapped : KMemoryPermission_UserRead);
src_page_table.memory_block_manager.UpdateLock(std::addressof(allocator), src_map_start, (src_map_end - src_map_start) / PageSize, &KMemoryBlock::LockForIpc, src_perm);
} }
/* We succeeded, so cancel our cleanup guard. */ /* We succeeded, so cancel our cleanup guard. */