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[release/9.0-staging] JIT: Fix possible heap corruption in outlined composite SSA storage by github-actions[bot] · Pull Request #116132 · dotnet/runtime · GitHub

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[release/9.0-staging] JIT: Fix possible heap corruption in outlined composite SSA storage - #116132

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jozkee merged 1 commit into
release/9.0-stagingfrom
backport/pr-116071-to-release/9.0-staging
Jun 9, 2025
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jozkee merged 1 commit into
release/9.0-stagingfrom
backport/pr-116071-to-release/9.0-staging

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github-actions Bot commented May 30, 2025 •
edited by jakobbotsch
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Backport of #116071 to release/9.0-staging

/cc @jakobbotsch

Customer Impact

  • Customer reported
  • Found internally

The JIT may corrupt its internal heap because of a buffer overflow.

Regression

  • Yes
  • No

This code was introduced several releases ago in #77238.

Testing

Fix was manually verified on customer's test case.

Risk

Low.

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

lgtm. we will take for consideration in 9.0.x

jeffschwMSFT added the Servicing-consider Issue for next servicing release review label May 30, 2025
jeffschwMSFT added this to the 9.0.x milestone May 30, 2025
jeffschwMSFT added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label May 30, 2025

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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

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@AndyAyersMS, PTAL.

rbhanda modified the milestones: 9.0.x, 9.0.7 Jun 3, 2025
rbhanda added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels Jun 3, 2025
jozkee merged commit 0eb433a into release/9.0-staging Jun 9, 2025
jozkee deleted the backport/pr-116071-to-release/9.0-staging branch June 9, 2025 15:59
github-actions Bot locked and limited conversation to collaborators Jul 10, 2025
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