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

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Merged
merged 1 commit into from
Jun 9, 2025
Merged

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

merged 1 commit into from
Jun 9, 2025
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@github-actions 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.

jeffschwMSFT
jeffschwMSFT approved these changes May 30, 2025
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lgtm. we will take for consideration in 9.0.x

@jeffschwMSFT jeffschwMSFT added the Servicing-consider Issue for next servicing release review label May 30, 2025
@jeffschwMSFT jeffschwMSFT added this to the 9.0.x milestone May 30, 2025
@jeffschwMSFT 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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@AndyAyersMS, PTAL.

@rbhanda rbhanda modified the milestones: 9.0.x, 9.0.7 Jun 3, 2025
@rbhanda rbhanda added Servicing-approved Approved for servicing release and removed Servicing-consider Issue for next servicing release review labels Jun 3, 2025
@jozkee jozkee merged commit 0eb433a into release/9.0-staging Jun 9, 2025
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@jozkee jozkee deleted the backport/pr-116071-to-release/9.0-staging branch June 9, 2025 15:59
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@jeffschwMSFT jeffschwMSFT jeffschwMSFT approved these changes

@AndyAyersMS AndyAyersMS AndyAyersMS approved these changes

@JulieLeeMSFT JulieLeeMSFT JulieLeeMSFT approved these changes

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area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI Servicing-approved Approved for servicing release
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