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Limit number of accounts that a transaction can lock #22201

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merged 1 commit into from
Jan 4, 2022

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jstarry
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@jstarry jstarry commented Dec 31, 2021

Problem

No limit to the number of accounts that a transaction can lock

Summary of Changes

  • Moved account key validation to SanitizedTransaction::get_account_locks()
  • Added validation check to limit the number of locked accounts per transaction to 64
  • Added feature switch to activate the new validation check

Fixes #21748
Feature Gate Issue #24046

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codecov bot commented Dec 31, 2021

Codecov Report

Merging #22201 (5cecb4c) into master (736f974) will increase coverage by 10.9%.
The diff coverage is 98.0%.

@@             Coverage Diff             @@
##           master   #22201       +/-   ##
===========================================
+ Coverage    70.1%    81.0%    +10.9%     
===========================================
  Files          35      523      +488     
  Lines        2076   146549   +144473     
  Branches      296        0      -296     
===========================================
+ Hits         1456   118844   +117388     
- Misses        519    27705    +27186     
+ Partials      101        0      -101     

@jackcmay
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Why move the account validation out of the sanitization process?

@jstarry
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jstarry commented Dec 31, 2021

Why move the account validation out of the sanitization process?

In my opinion, sanitization is more for things like bounds checking. Validation of requested account locks for a transaction is something different governed by the runtime and makes more sense to handle at the point of account locking.

@jstarry jstarry merged commit 2b5e00d into solana-labs:master Jan 4, 2022
@jstarry jstarry deleted the max-tx-locked-accounts branch January 4, 2022 06:25
mergify bot pushed a commit that referenced this pull request Jan 4, 2022
(cherry picked from commit 2b5e00d)

# Conflicts:
#	accountsdb-plugin-postgres/src/postgres_client/postgres_client_transaction.rs
#	runtime/src/accounts.rs
#	runtime/src/bank.rs
#	sdk/src/feature_set.rs
#	sdk/src/transaction/error.rs
#	storage-proto/proto/transaction_by_addr.proto
#	storage-proto/src/convert.rs
mergify bot added a commit that referenced this pull request Jan 4, 2022
#22263)

* Limit number of accounts that a transaction can lock (#22201)

(cherry picked from commit 2b5e00d)

# Conflicts:
#	accountsdb-plugin-postgres/src/postgres_client/postgres_client_transaction.rs
#	runtime/src/accounts.rs
#	runtime/src/bank.rs
#	sdk/src/feature_set.rs
#	sdk/src/transaction/error.rs
#	storage-proto/proto/transaction_by_addr.proto
#	storage-proto/src/convert.rs

* resolve conflicts

Co-authored-by: Justin Starry <[email protected]>
@brooksprumo brooksprumo mentioned this pull request Jan 5, 2022
@jstarry jstarry added the feature-gate Pull Request adds or modifies a runtime feature gate label Apr 1, 2022
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No cap on the number of accounts loaded in a transaction
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