GitRefTableReader may overflow stack on malformed inputs #1681

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#1682

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GitRefTableReader may overflow stack on malformed inputs#1681

#1682

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10.0.4xx

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tmat

opened on May 18, 2026

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A crafted local repository metadata set can enable reftable storage and create a recursive traversal between SearchRefIndex and SearchBlock methods, leading to stack exhaustion.

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1. tmat

   added

   bugSomething isn't workingSomething isn't working

   on May 18, 2026
2. tmat

   added this to the 10.0.4xx milestone on May 18, 2026
3. tmat

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   tmat

   and

   Copilot

   on May 18, 2026
4. Copilot

   linked a pull request that will close this issueReplace recursive reftable traversal with iterative stack walk and cycle detection #1682on May 18, 2026

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