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kernel: wait_for_objects: read the user sigmask with user_memcpy()

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This commit is contained in:
Jérôme Duval
2018-01-08 22:19:07 +01:00
parent 9fbffea6f4
commit 51051c56d3
1 changed files with 5 additions and 2 deletions
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src/system/kernel/wait_for_objects.cpp
+5 -2
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@@ -963,8 +963,11 @@ _user_select(int numFDs, fd_set *userReadSet, fd_set *userWriteSet,
} }
} }
if (userSigMask != NULL) if (userSigMask != NULL
sigMask = *userSigMask; && user_memcpy(&sigMask, userSigMask, sizeof(sigMask)) < B_OK) {
result = B_BAD_ADDRESS;
goto err;
}
result = common_select(numFDs, readSet, writeSet, errorSet, timeout, result = common_select(numFDs, readSet, writeSet, errorSet, timeout,
userSigMask ? &sigMask : NULL, false); userSigMask ? &sigMask : NULL, false);