forked from lix-project/lix
Do not try to fill fd_set with fd>=FD_SETSIZE
This is UB and causes buffer overflow and crash on linux.
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72462b4b6e
commit
d5e1bffd2a
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@ -3835,6 +3835,9 @@ void Worker::waitForInput()
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int fdMax = 0;
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int fdMax = 0;
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for (auto & i : children) {
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for (auto & i : children) {
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for (auto & j : i.fds) {
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for (auto & j : i.fds) {
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if (j >= FD_SETSIZE) {
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throw BuildError("reached FD_SETSIZE limit");
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}
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FD_SET(j, &fds);
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FD_SET(j, &fds);
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if (j >= fdMax) fdMax = j + 1;
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if (j >= fdMax) fdMax = j + 1;
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}
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}
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