Fix: decayed_counter can overflow if shifted more than 63 #35054
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Lichtso
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Feb 2, 2024
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Backports to the beta branch are to be avoided unless absolutely necessary for fixing bugs, security issues, and perf regressions. Changes intended for backport should be structured such that a minimum effective diff can be committed separately from any refactoring, plumbing, cleanup, etc that are not strictly necessary to achieve the goal. Any of the latter should go only into master and ride the normal stabilization schedule. Exceptions include CI/metrics changes, CLI improvements and documentation updates on a case by case basis. |
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(cherry picked from commit bf95f65)
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…kport of #35054) (#35057) Fix: decayed_counter can overflow if shifted more than 63 (#35054) (cherry picked from commit bf95f65) Co-authored-by: Pankaj Garg <[email protected]>
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Problem
https://github.com/solana-labs/solana/pull/34391/files#r1476263596
Summary of Changes
Shifting the value for more than 63 times can cause an overflow. Add a limit, and a unit test.
Fixes #