[UBSAN][GEMDigi] shift exponent is too large for int

[smuzaffar]

UBSAN IBs report many runtime errors like [a]. The stack at the time of error is [b]. The call is triggered from https://github.com/cms-sw/cmssw/blob/master/EventFilter/GEMRawToDigi/plugins/GEMDigiToRawModule.cc#L204 which was add in #38062 . Such errors normally shows that there might be some logical errors.

[a] https://cmssdt.cern.ch/SDT/jenkins-artifacts/ubsan_logs/CMSSW_14_2_X_2024-10-30-2300/logs/a4/a46e3025fea17bb12e2d7f9cf63e862f/log

10007.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 3951 is too large for 32-bit type 'int'
10026.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 3615 is too large for 32-bit type 'int'
10224.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 2424 is too large for 32-bit type 'int'
10224.15/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 3944 is too large for 32-bit type 'int'
10225.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 1740 is too large for 32-bit type 'int'
10424.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 3944 is too large for 32-bit type 'int'
10809.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 1759 is too large for 32-bit type 'int'
10842.0/step2:DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 2651 is too large for 32-bit type 'int'

[b] https://cmssdt.cern.ch/SDT/cgi-bin/logreader/el8_amd64_gcc12/CMSSW_14_2_UBSAN_X_2024-10-30-2300/pyRelValMatrixLogs/run/10007.0_SingleMuPt10+2017/step2_SingleMuPt10+2017.log#/41-41

src/DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151:38: runtime error: shift exponent 3951 is too large for 32-bit type 'int'
    #0 0x1536313b5e86 in GEMOptoHybrid::addVFAT(GEMVFAT) src/DataFormats/GEMDigi/interface/GEMOptoHybrid.h:151
    #1 0x1536313b5e86 in GEMDigiToRawModule::produce(edm::StreamID, edm::Event&, edm::EventSetup const&) const src/EventFilter/GEMRawToDigi/plugins/GEMDigiToRawModule.cc:204
    #2 0x153715b6d0fd in edm::global::EDProducerBase::doEvent(edm::EventTransitionInfo const&, edm::ActivityRegistry*, edm::ModuleCallingContext const*) src/FWCore/Framework/src/global/EDProducerBase.cc:69
    #3 0x153715b1dd58 in edm::WorkerT<edm::global::EDProducerBase>::implDo(edm::EventTransitionInfo const&, edm::ModuleCallingContext const*) src/FWCore/Framework/src/WorkerT.cc:202
    #4 0x15371515934f in edm::workerhelper::CallImpl<edm::OccurrenceTraits<edm::EventPrincipal, (edm::BranchActionType)1> >::call(edm::Worker*, edm::StreamID, edm::EventTransitionInfo const&, edm::ActivityRegistry*, 

[smuzaffar]

assign reconstruction

[cmsbuild]

New categories assigned: reconstruction

@jfernan2,@mandrenguyen you have been requested to review this Pull request/Issue and eventually sign? Thanks

[smuzaffar]

FYI @yeckang

[cmsbuild]

cms-bot internal usage

[cmsbuild]

A new Issue was created by @smuzaffar.

@Dr15Jones, @antoniovilela, @makortel, @mandrenguyen, @rappoccio, @sextonkennedy, @smuzaffar can you please review it and eventually sign/assign? Thanks.

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