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native: copy contract on update

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It can be a pointer to cached data:

2021-07-07T20:05:24.8508647Z ==================
2021-07-07T20:05:24.8509294Z WARNING: DATA RACE
2021-07-07T20:05:24.8510243Z Write at 0x00c000142cc8 by goroutine 51:
2021-07-07T20:05:24.8511350Z   github.com/nspcc-dev/neo-go/pkg/core/native.(*Management).Update()
2021-07-07T20:05:24.8529622Z       /home/runner/work/neo-go/neo-go/pkg/core/native/management.go:335 +0x70a
2021-07-07T20:05:24.8531266Z   github.com/nspcc-dev/neo-go/pkg/core/native.(*Management).updateWithData()
2021-07-07T20:05:24.8532544Z       /home/runner/work/neo-go/neo-go/pkg/core/native/management.go:316 +0x1e9
2021-07-07T20:05:24.8533726Z   github.com/nspcc-dev/neo-go/pkg/core/native.(*Management).update()
2021-07-07T20:05:24.8534928Z       /home/runner/work/neo-go/neo-go/pkg/core/native/management.go:303 +0x111
2021-07-07T20:05:24.8536123Z   github.com/nspcc-dev/neo-go/pkg/core/native.(*Management).update-fm()
2021-07-07T20:05:24.8537389Z       /home/runner/work/neo-go/neo-go/pkg/core/native/management.go:302 +0x34
2021-07-07T20:05:24.8538462Z   github.com/nspcc-dev/neo-go/pkg/core/native.Call()
2021-07-07T20:05:24.8539565Z       /home/runner/work/neo-go/neo-go/pkg/core/native/interop.go:54 +0x90c
2021-07-07T20:05:24.8540751Z   github.com/nspcc-dev/neo-go/pkg/core/interop.(*Context).SyscallHandler()
2021-07-07T20:05:24.8542177Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/context.go:262 +0x216
2021-07-07T20:05:24.8543328Z   github.com/nspcc-dev/neo-go/pkg/core/interop.(*Context).SyscallHandler-fm()
2021-07-07T20:05:24.8544586Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/context.go:250 +0x53
2021-07-07T20:05:24.8545648Z   github.com/nspcc-dev/neo-go/pkg/vm.(*VM).execute()
2021-07-07T20:05:24.8546635Z       /home/runner/work/neo-go/neo-go/pkg/vm/vm.go:1312 +0xb2d5
2021-07-07T20:05:24.8547632Z   github.com/nspcc-dev/neo-go/pkg/vm.(*VM).Step()
2021-07-07T20:05:24.8548640Z       /home/runner/work/neo-go/neo-go/pkg/vm/vm.go:416 +0x1f2
2021-07-07T20:05:24.8549836Z   github.com/nspcc-dev/neo-go/pkg/vm.(*VM).Run()
2021-07-07T20:05:24.8550852Z       /home/runner/work/neo-go/neo-go/pkg/vm/vm.go:393 +0x195
2021-07-07T20:05:24.8551989Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).runScriptInVM()
2021-07-07T20:05:24.8553174Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:1326 +0x7eb
2021-07-07T20:05:24.8554345Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).invokeFunction()
2021-07-07T20:05:24.8555560Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:1219 +0x50c
2021-07-07T20:05:24.8556616Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).handleIn()
2021-07-07T20:05:24.8557823Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:345 +0xecb
2021-07-07T20:05:24.8558987Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).handleRequest()
2021-07-07T20:05:24.8560356Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:315 +0x364
2021-07-07T20:05:24.8561599Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).handleHTTPRequest()
2021-07-07T20:05:24.8562976Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:309 +0xf9b
2021-07-07T20:05:24.8564208Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).handleHTTPRequest-fm()
2021-07-07T20:05:24.8565523Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:257 +0x64
2021-07-07T20:05:24.8566348Z   net/http.HandlerFunc.ServeHTTP()
2021-07-07T20:05:24.8567290Z       /opt/hostedtoolcache/go/1.15.13/x64/src/net/http/server.go:2042 +0x51
2021-07-07T20:05:24.8568185Z   net/http.serverHandler.ServeHTTP()
2021-07-07T20:05:24.8569130Z       /opt/hostedtoolcache/go/1.15.13/x64/src/net/http/server.go:2843 +0xca
2021-07-07T20:05:24.8569861Z   net/http.(*conn).serve()
2021-07-07T20:05:24.8570634Z       /opt/hostedtoolcache/go/1.15.13/x64/src/net/http/server.go:1925 +0x84c
2021-07-07T20:05:24.8571139Z
2021-07-07T20:05:24.8571639Z Previous read at 0x00c000142cc8 by goroutine 41:
2021-07-07T20:05:24.8572892Z   github.com/nspcc-dev/neo-go/pkg/core/interop/contract.callExFromNative()
2021-07-07T20:05:24.8574265Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/contract/call.go:101 +0x2d4
2021-07-07T20:05:24.8575581Z   github.com/nspcc-dev/neo-go/pkg/core/interop/contract.callInternal()
2021-07-07T20:05:24.8576951Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/contract/call.go:85 +0x1f5
2021-07-07T20:05:24.8578094Z   github.com/nspcc-dev/neo-go/pkg/core/interop/contract.Call()
2021-07-07T20:05:24.8579306Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/contract/call.go:69 +0x804
2021-07-07T20:05:24.8580514Z   github.com/nspcc-dev/neo-go/pkg/core/interop.(*Context).SyscallHandler()
2021-07-07T20:05:24.8581755Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/context.go:262 +0x216
2021-07-07T20:05:24.8582907Z   github.com/nspcc-dev/neo-go/pkg/core/interop.(*Context).SyscallHandler-fm()
2021-07-07T20:05:24.8584300Z       /home/runner/work/neo-go/neo-go/pkg/core/interop/context.go:250 +0x53
2021-07-07T20:05:24.8585422Z   github.com/nspcc-dev/neo-go/pkg/vm.(*VM).execute()
2021-07-07T20:05:24.8586403Z       /home/runner/work/neo-go/neo-go/pkg/vm/vm.go:1312 +0xb2d5
2021-07-07T20:05:24.8590451Z   github.com/nspcc-dev/neo-go/pkg/vm.(*VM).Step()
2021-07-07T20:05:24.8591549Z       /home/runner/work/neo-go/neo-go/pkg/vm/vm.go:416 +0x1f2
2021-07-07T20:05:24.8592466Z   github.com/nspcc-dev/neo-go/pkg/vm.(*VM).Run()
2021-07-07T20:05:24.8593550Z       /home/runner/work/neo-go/neo-go/pkg/vm/vm.go:393 +0x195
2021-07-07T20:05:24.8594531Z   github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).storeBlock()
2021-07-07T20:05:24.8595708Z       /home/runner/work/neo-go/neo-go/pkg/core/blockchain.go:717 +0x1694
2021-07-07T20:05:24.8596793Z   github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).AddBlock()
2021-07-07T20:05:24.8598142Z       /home/runner/work/neo-go/neo-go/pkg/core/blockchain.go:579 +0x544
2021-07-07T20:05:24.8599419Z   github.com/nspcc-dev/neo-go/pkg/consensus.(*service).processBlock()
2021-07-07T20:05:24.8601093Z       /home/runner/work/neo-go/neo-go/pkg/consensus/consensus.go:521 +0x141
2021-07-07T20:05:24.8602485Z   github.com/nspcc-dev/neo-go/pkg/consensus.(*service).processBlock-fm()
2021-07-07T20:05:24.8603809Z       /home/runner/work/neo-go/neo-go/pkg/consensus/consensus.go:517 +0x55
2021-07-07T20:05:24.8604910Z   github.com/nspcc-dev/dbft.(*DBFT).checkCommit()
2021-07-07T20:05:24.8606098Z       /home/runner/go/pkg/mod/github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/check.go:73 +0xd8a
2021-07-07T20:05:24.8607235Z   github.com/nspcc-dev/dbft.(*DBFT).checkPrepare()
2021-07-07T20:05:24.8608551Z       /home/runner/go/pkg/mod/github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/check.go:36 +0x677
2021-07-07T20:05:24.8609681Z   github.com/nspcc-dev/dbft.(*DBFT).sendPrepareRequest()
2021-07-07T20:05:24.8611016Z       /home/runner/go/pkg/mod/github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/send.go:42 +0x47c
2021-07-07T20:05:24.8612107Z   github.com/nspcc-dev/dbft.(*DBFT).OnTimeout()
2021-07-07T20:05:24.8613257Z       /home/runner/go/pkg/mod/github.com/nspcc-dev/dbft@v0.0.0-20210302103605-cc75991b7cfb/dbft.go:188 +0x68c
2021-07-07T20:05:24.8614499Z   github.com/nspcc-dev/neo-go/pkg/consensus.(*service).eventLoop()
2021-07-07T20:05:24.8615712Z       /home/runner/work/neo-go/neo-go/pkg/consensus/consensus.go:274 +0x17ed
2021-07-07T20:05:24.8616284Z
2021-07-07T20:05:24.8616757Z Goroutine 51 (running) created at:
2021-07-07T20:05:24.8617367Z   net/http.(*Server).Serve()
2021-07-07T20:05:24.8618159Z       /opt/hostedtoolcache/go/1.15.13/x64/src/net/http/server.go:2969 +0x5d3
2021-07-07T20:05:24.8619253Z   github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).Start.func2()
2021-07-07T20:05:24.8620437Z       /home/runner/work/neo-go/neo-go/pkg/rpc/server/server.go:224 +0x85
2021-07-07T20:05:24.8620936Z
2021-07-07T20:05:24.8621405Z Goroutine 41 (running) created at:
2021-07-07T20:05:24.8622393Z   github.com/nspcc-dev/neo-go/pkg/consensus.(*service).Start()
2021-07-07T20:05:24.8623562Z       /home/runner/work/neo-go/neo-go/pkg/consensus/consensus.go:250 +0x17c
2021-07-07T20:05:24.8624682Z   github.com/nspcc-dev/neo-go/pkg/network.(*Server).tryStartServices()
2021-07-07T20:05:24.8626078Z       /home/runner/work/neo-go/neo-go/pkg/network/server.go:445 +0x2e1
2021-07-07T20:05:24.8627226Z   github.com/nspcc-dev/neo-go/pkg/network.(*Server).Start()
2021-07-07T20:05:24.8628333Z       /home/runner/work/neo-go/neo-go/pkg/network/server.go:268 +0x2af
2021-07-07T20:05:24.8628973Z ==================
This commit is contained in:
Roman Khimov 2021-07-07 23:17:18 +03:00
parent 685ff8bbf6
commit bd400dfe20
1 changed files with 7 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
pkg/core/native/management.go
View file

@ -325,10 +325,14 @@ func (m *Management) updateWithData(ic *interop.Context, args []stackitem.Item)
// Update updates contract's script and/or manifest in the given DAO. // Update updates contract's script and/or manifest in the given DAO.
// It doesn't run _deploy method and doesn't emit notification. // It doesn't run _deploy method and doesn't emit notification.
func (m *Management) Update(d dao.DAO, hash util.Uint160, neff *nef.File, manif *manifest.Manifest) (*state.Contract, error) { func (m *Management) Update(d dao.DAO, hash util.Uint160, neff *nef.File, manif *manifest.Manifest) (*state.Contract, error) {
contract, err := m.GetContract(d, hash) var contract state.Contract
oldcontract, err := m.GetContract(d, hash)
if err != nil { if err != nil {
return nil, errors.New("contract doesn't exist") return nil, errors.New("contract doesn't exist")
} }
contract = *oldcontract // Make a copy, don't ruin (potentially) cached contract.
// if NEF was provided, update the contract script // if NEF was provided, update the contract script
if neff != nil { if neff != nil {
m.markUpdated(hash) m.markUpdated(hash)
@ -351,11 +355,11 @@ func (m *Management) Update(d dao.DAO, hash util.Uint160, neff *nef.File, manif
return nil, err return nil, err
} }
contract.UpdateCounter++ contract.UpdateCounter++
err = m.PutContractState(d, contract) err = m.PutContractState(d, &contract)
if err != nil { if err != nil {
return nil, err return nil, err
} }
return contract, nil return &contract, nil
} }
// destroy is an implementation of destroy update method, it's run under // destroy is an implementation of destroy update method, it's run under